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Extreme points are portions of a region which are further north, south, east, or west than any other. This is a list of extreme points in U.S. states, territories, and the District of Columbia.[1]

Although many borders were initially defined by treaty or other agreement to be along a specific line of latitude or longitude, inaccuracies with surveying equipment/techniques caused the surveyed lines to deviate slightly from the true boundaries. Even as equipment/techniques improved, the initial surveyed line still remains the official border,[2] which is why the extreme points may be either side of the agreed-upon line.

The 49th parallel was agreed to be the border between the United States and British North America (later Canada) from Lake of the Woods to the Strait of Juan de Fuca in the Treaty of 1818 and Oregon Treaty. However, the true boundary line as surveyed deviates several seconds from the true parallel, as seen in this significantly exaggerated depiction


State / Territory Northernmost point Southernmost point Easternmost point Westernmost point
 Alabama Water:
35°00′29″N 88°12′11″W / 35.00806°N 88.20306°W / 35.00806; -88.20306
Tennessee border at the northwest corner of the state in Pickwick Lake northwest of Waterloo


Land:
35°00′28″N 88°11′35″W / 35.00778°N 88.19306°W / 35.00778; -88.19306
Tennessee border on an unnamed island in Pickwick Lake

30°11′15″N 88°03′02″W / 30.18750°N 88.05056°W / 30.18750; -88.05056
Sand Island (on which Sand Island Light sits) 		32°15′35″N 84°53′21″W / 32.25972°N 84.88917°W / 32.25972; -84.88917[a]
Georgia border on the Chattahoochee River southeast of Fort Mitchell 		31°53′38″N 88°28′25″W / 31.89389°N 88.47361°W / 31.89389; -88.47361
Mississippi border southwest of Melvin
 Alaska[b] 71°23′13″N 156°28′29″W / 71.38694°N 156.47472°W / 71.38694; -156.47472[c][d]
Point Barrow[3] northeast of Utqiaġvik 		51°12′36″N 179°07′55″W / 51.21000°N 179.13194°W / 51.21000; -179.13194
Unnamed archipelago south of Amatignak Island in the Aleutian Islands 		By direction, water:
55°16′55″N 129°58′27″W / 55.28194°N 129.97417°W / 55.28194; -129.97417
British Columbia border on the Portland Canal[4] east of Ketchikan


By direction, land:
55°17′24″N 129°59′40″W / 55.29000°N 129.99444°W / 55.29000; -129.99444
Camp Point, in the Misty Fjords National Monument Wilderness, east of Ketchikan

By longitude:
51°57′15″N 179°46′42″E / 51.95417°N 179.77833°E / 51.95417; 179.77833 (AK-E Pochnoi Point)
Pochnoi Point[5] on Semisopochnoi Island in the Aleutian Islands

By direction:
52°55′20″N 172°26′35″E / 52.92222°N 172.44306°E / 52.92222; 172.44306 (AK-W Peaked Island)[c]
Peaked Island[6] in the Aleutian Islands, west of Attu Island in the Aleutian Islands


By longitude:
51°16′15″N 179°08′51″W / 51.27083°N 179.14750°W / 51.27083; -179.14750 (AK-W Amatignak Island)
Amatignak Island[7] in the Aleutian Islands

 American Samoa 11°02′46″S 171°04′26″W / 11.04611°S 171.07389°W / -11.04611; -171.07389 (AS-N)
Swains Island[e]


Excluding disputed islands:
14°09′18″S 169°36′45″W / 14.15500°S 169.61250°W / -14.15500; -169.61250
Faumasili Point, Olosega Island

14°33′34″S 168°09′30″W / 14.55944°S 168.15833°W / -14.55944; -168.15833[d]
Rose Atoll[8] 		14°32′50″S 168°08′36″W / 14.54722°S 168.14333°W / -14.54722; -168.14333 (AS-E)
Rose Atoll 		11°03′11″S 171°05′24″W / 11.05306°S 171.09000°W / -11.05306; -171.09000
Swains Island[e]


Excluding disputed islands:
14°19′15″S 170°50′49″W / 14.32083°S 170.84694°W / -14.32083; -170.84694
Luania Rocks, off Tutuila Island

 Arizona 37°00′13″N 110°29′25″W / 37.00361°N 110.49028°W / 37.00361; -110.49028
Utah border west of Oljato-Monument Valley 		31°19′56.5″N 111°04′30″W / 31.332361°N 111.07500°W / 31.332361; -111.07500
Sonora border west of Nogales 		36°59′56″N 109°02′43″W / 36.99889°N 109.04528°W / 36.99889; -109.04528
AZ-CO-NM-UT quadripoint 		32°30′28″N 114°48′59″W / 32.50778°N 114.81639°W / 32.50778; -114.81639
Baja California border northwest of San Luis
 Arkansas 36°29′59″N 94°21′18″W / 36.49972°N 94.35500°W / 36.49972; -94.35500
Missouri border northwest of Bella Vista 		33°00′15″N 91°09′58″W / 33.00417°N 91.16611°W / 33.00417; -91.16611
AR-MS-TN tripoint 		Water:
35°54′25″N 89°38′28″W / 35.90694°N 89.64111°W / 35.90694; -89.64111
Tennessee border on the Mississippi River east of Armorel


Land:
35°53′56″N 89°38′49″W / 35.89889°N 89.64694°W / 35.89889; -89.64694
Barfield Bar, an island in the Mississippi River east of Armorel

36°29′58″N 94°37′04″W / 36.49944°N 94.61778°W / 36.49944; -94.61778
AR-MO-OK tripoint
 California 42°00′34″N 122°22′41″W / 42.00944°N 122.37806°W / 42.00944; -122.37806
Oregon border northeast of Hornbrook 		32°32′04″N 117°07′26″W / 32.53444°N 117.12389°W / 32.53444; -117.12389
Baja California border where it meets the Pacific Ocean in Border Field State Park 		34°15′46″N 114°07′52″W / 34.26278°N 114.13111°W / 34.26278; -114.13111[a]
Arizona border on the Colorado River southeast of Parker Dam 		40°26′19″N 124°24′55″W / 40.43861°N 124.41528°W / 40.43861; -124.41528
Sugar Loaf Island
 Colorado 41°00′12″N 107°00′02″W / 41.00333°N 107.00056°W / 41.00333; -107.00056
Wyoming border north of Hahns Peak Village 		36°59′33″N 106°52′11″W / 36.99250°N 106.86972°W / 36.99250; -106.86972
Southern border with New Mexico south of Chromo 		37°22′30″N 102°02′30″W / 37.37500°N 102.04167°W / 37.37500; -102.04167
Kansas border east of Walsh 		38°16′31″N 109°03′38″W / 38.27528°N 109.06056°W / 38.27528; -109.06056
Utah border southwest of Paradox[9]
 Connecticut 42°03′02″N 73°25′57″W / 42.05056°N 73.43250°W / 42.05056; -73.43250
Massachusetts border north of Salisbury 		Water:
40°57′03″N 73°36′46″W / 40.95083°N 73.61278°W / 40.95083; -73.61278
New York border in Long Island Sound south of Greenwich


Land:
40°58′51″N 73°37′47″W / 40.98083°N 73.62972°W / 40.98083; -73.62972
Great Captain Island

41°39′22″N 71°47′14″W / 41.65611°N 71.78722°W / 41.65611; -71.78722
Rhode Island border southeast of Sterling 		41°06′02″N 73°43′40″W / 41.10056°N 73.72778°W / 41.10056; -73.72778
New York border northwest of Greenwich
 Delaware 39°50′22″N 75°33′37″W / 39.83944°N 75.56028°W / 39.83944; -75.56028
Pennsylvania border east of Beaver Valley 		38°27′04″N 75°08′23″W / 38.45111°N 75.13972°W / 38.45111; -75.13972
Maryland border south of Williamsville 		38°27′42″N 75°02′56″W / 38.46167°N 75.04889°W / 38.46167; -75.04889
On Fenwick Island 		39°39′44″N 75°47′20″W / 39.66222°N 75.78889°W / 39.66222; -75.78889
Maryland border southwest of Newark
 District of Columbia 38°59′44″N 77°02′28″W / 38.99556°N 77.04111°W / 38.99556; -77.04111
Near the intersection of E Beach Dr NW and Verbena St NW 		Water:
38°47′30″N 77°02′21″W / 38.79167°N 77.03917°W / 38.79167; -77.03917
DC-MD-VA tripoint on the Potomac River


Land:
38°48′12″N 77°01′27″W / 38.80333°N 77.02417°W / 38.80333; -77.02417
Western end of Oxon Hill Farm

38°53′34″N 76°54′34″W / 38.89278°N 76.90944°W / 38.89278; -76.90944
Intersection of Eastern Avenue NE and Southern Avenue NE 		38°56′04″N 77°07′11″W / 38.93444°N 77.11972°W / 38.93444; -77.11972[a]
DC-MD-VA tripoint on the Potomac River at Little Falls
 Florida 31°00′04″N 85°09′52″W / 31.00111°N 85.16444°W / 31.00111; -85.16444
Alabama border north of Malone 		24°31′16″N 81°57′49″W / 24.52111°N 81.96361°W / 24.52111; -81.96361 (FL-S1)[f]
Ballast Key in the Mule Keys 		26°46′43″N 80°01′52″W / 26.77861°N 80.03111°W / 26.77861; -80.03111 (FL-E)
Palm Beach Shores 		30°51′59″N 87°38′06″W / 30.86639°N 87.63500°W / 30.86639; -87.63500 (FL-W)[a]
Alabama border on the Perdido River west of Walnut Hill
Georgia (U.S. state) Georgia 35°00′05″N 83°06′38″W / 35.00139°N 83.11056°W / 35.00139; -83.11056
North Carolina border near GA-NC-SC tripoint 		30°21′22″N 82°03′56″W / 30.35611°N 82.06556°W / 30.35611; -82.06556[a]
Florida border on the St. Marys River south of St. George 		32°00′43″N 80°50′27″W / 32.01194°N 80.84083°W / 32.01194; -80.84083
Tybee Island 		34°59′05″N 85°36′19″W / 34.98472°N 85.60528°W / 34.98472; -85.60528
AL-GA-TN tripoint
 Guam 13°39′16″N 144°51′36″E / 13.65444°N 144.86000°E / 13.65444; 144.86000
Ritidian Point 		13°14′03″N 144°38′40″E / 13.23417°N 144.64444°E / 13.23417; 144.64444
Cocos Island 		13°35′51″N 144°57′24″E / 13.59750°N 144.95667°E / 13.59750; 144.95667
Pati point 		13°26′45″N 144°37′06″E / 13.44583°N 144.61833°E / 13.44583; 144.61833[d]
Point Udall
 Hawaii 28°27′20″N 178°19′20″W / 28.45556°N 178.32222°W / 28.45556; -178.32222
Kure Atoll 		18°54′40″N 155°40′52″W / 18.91111°N 155.68111°W / 18.91111; -155.68111[c]
Ka Lae, Big Island 		19°31′00″N 154°48′30″W / 19.51667°N 154.80833°W / 19.51667; -154.80833
Cape Kumukahi, Big Island 		28°25′05″N 178°22′28″W / 28.41806°N 178.37444°W / 28.41806; -178.37444
Kure Atoll
 Idaho 49°00′03″N 116°02′57″W / 49.00083°N 116.04917°W / 49.00083; -116.04917
BC-ID-MT tripoint 		41°59′17″N 113°52′24″W / 41.98806°N 113.87333°W / 41.98806; -113.87333
Utah border south of Oakley 		42°44′51″N 111°02′37″W / 42.74750°N 111.04361°W / 42.74750; -111.04361
Wyoming border northeast of Soda Springs 		44°23′28″N 117°14′35″W / 44.39111°N 117.24306°W / 44.39111; -117.24306[a]
Oregon border on the Snake River northwest of Weiser
 Illinois 42°30′31″N 90°38′34″W / 42.50861°N 90.64278°W / 42.50861; -90.64278[a]
IL-IA-WI tripoint on Mississippi River 		36°58′14″N 89°10′15″W / 36.97056°N 89.17083°W / 36.97056; -89.17083[10][a]
Missouri border on the Mississippi River off of Angelo Towhead, an island south of Cairo 		Water:
42°29′36″N 87°01′12″W / 42.49333°N 87.02000°W / 42.49333; -87.02000
IL-MI-WI tripoint in Lake Michigan[11]


Land:
38°46′54″N 87°29′46″W / 38.78167°N 87.49611°W / 38.78167; -87.49611
Indiana border southeast of Russellville

40°10′45″N 91°30′47″W / 40.17917°N 91.51306°W / 40.17917; -91.51306[a]
Missouri border on the Mississippi River west of Lima
 Indiana Water:
41°45′41″N 87°07′30″W / 41.76139°N 87.12500°W / 41.76139; -87.12500
Michigan border in Lake Michigan north of Burns Harbor


Land:
41°45′39″N 86°06′30″W / 41.76083°N 86.10833°W / 41.76083; -86.10833
Michigan border north of Granger

37°46′18″N 87°57′10″W / 37.77167°N 87.95278°W / 37.77167; -87.95278[a]
Kentucky border on the Ohio River near the IL-IN-KY border 		38°52′32″N 84°47′05″W / 38.87556°N 84.78472°W / 38.87556; -84.78472 (IN-E)[a]
Kentucky border on the Ohio River northeast of Patriot 		37°54′06″N 88°05′52″W / 37.90167°N 88.09778°W / 37.90167; -88.09778 (IN-W)[a]
Illinois border on the Wabash River west of Mt. Vernon
 Iowa 43°30′04″N 95°14′41″W / 43.50111°N 95.24472°W / 43.50111; -95.24472
Minnesota border northeast of Lake Park 		40°22′32″N 91°27′16″W / 40.37556°N 91.45444°W / 40.37556; -91.45444
Missouri border southwest of Keokuk 		Water:
42°00′12″N 90°08′25″W / 42.00333°N 90.14028°W / 42.00333; -90.14028
Illinois border on the Mississippi River east of Andover


Land:
41°59′39″N 90°08′33″W / 41.99417°N 90.14250°W / 41.99417; -90.14250
Unnamed island in the Mississippi River east of Andover

42°44′13″N 96°38′22″W / 42.73694°N 96.63944°W / 42.73694; -96.63944[a]
South Dakota border on the Big Sioux River southwest of Westfield
 Kansas 40°00′11″N 102°01′17″W / 40.00306°N 102.02139°W / 40.00306; -102.02139
Nebraska border near the CO-KS-NE tripoint 		36°59′35″N 102°02′32″W / 36.99306°N 102.04222°W / 36.99306; -102.04222
CO-KS-OK tripoint 		39°08′56″N 94°35′18″W / 39.14889°N 94.58833°W / 39.14889; -94.58833
Missouri border on the Missouri River within Kansas City 		40°00′00″N 102°03′06″W / 40.00000°N 102.05167°W / 40.00000; -102.05167
Colorado border near the CO-KS-NE tripoint
 Kentucky 39°08′52″N 84°44′57″W / 39.14778°N 84.74917°W / 39.14778; -84.74917[a]
Ohio border on the Ohio River north of Francisville 		36°29′50″N 88°03′12″W / 36.49722°N 88.05333°W / 36.49722; -88.05333[a]
Tennessee border in Kentucky Lake southeast of New Concord 		37°32′33″N 81°57′54″W / 37.54250°N 81.96500°W / 37.54250; -81.96500
West Virginia border on the shore of the Tug Fork River near the KY-VA-WV tripoint 		36°33′15″N 89°34′17″W / 36.55417°N 89.57139°W / 36.55417; -89.57139
Missouri border on the Mississippi River at the Madrid Bar in the Kentucky Bend
 Louisiana 33°01′11″N 93°55′17″W / 33.01972°N 93.92139°W / 33.01972; -93.92139
Arkansas border northwest of Ida 		28°55′44″N 89°25′11″W / 28.92889°N 89.41972°W / 28.92889; -89.41972
Unnamed island between Southwest Pass (a distributary of the Mississippi River) and West Bay, southwest of Port Eads 		29°54′33″N 88°48′59″W / 29.90917°N 88.81639°W / 29.90917; -88.81639
Chandeleur Islands 		32°48′30″N 94°02′36″W / 32.80833°N 94.04333°W / 32.80833; -94.04333
Texas border southwest of Vivian
 Maine 47°27′35″N 69°13′28″W / 47.45972°N 69.22444°W / 47.45972; -69.22444[a]
Quebec border on the St. Francis River at Estcourt Station 		42°58′29″N 70°35′57″W / 42.97472°N 70.59917°W / 42.97472; -70.59917
Cedar Island Ledge, in the Isles of Shoals 		44°48′44″N 66°56′43″W / 44.81222°N 66.94528°W / 44.81222; -66.94528[c][f]
Sail Rock, off of West Quoddy Head 		45°18′20″N 71°05′02″W / 45.30556°N 71.08389°W / 45.30556; -71.08389
ME-NH-QC tripoint
 Maryland 39°43′23″N 78°43′33″W / 39.72306°N 78.72583°W / 39.72306; -78.72583
Pennsylvania border northeast of Bowmans Addition 		Water:
37°53′12″N 76°14′11″W / 37.88667°N 76.23639°W / 37.88667; -76.23639
Virginia border in Chesapeake Bay southeast of Scotland


Land:
37°54′44″N 75°53′01″W / 37.91222°N 75.88361°W / 37.91222; -75.88361
Watkins Point, southwest of Crisfield

38°27′05″N 75°02′57″W / 38.45139°N 75.04917°W / 38.45139; -75.04917
Delaware border, where it meets the Atlantic Ocean 		39°16′48″N 79°29′16″W / 39.28000°N 79.48778°W / 39.28000; -79.48778
West Virginia border southwest of Crellin
 Massachusetts 42°53′12″N 70°54′19″W / 42.88667°N 70.90528°W / 42.88667; -70.90528
New Hampshire border in Salisbury 		41°14′21″N 70°00′39″W / 41.23917°N 70.01083°W / 41.23917; -70.01083
Nantucket Island 		41°44′28″N 69°55′44″W / 41.74111°N 69.92889°W / 41.74111; -69.92889
Cape Cod National Seashore in Orleans 		42°05′10″N 73°30′30″W / 42.08611°N 73.50833°W / 42.08611; -73.50833
New York border west of Mount Washington
 Michigan Water:
48°18′20″N 88°22′07″W / 48.30556°N 88.36861°W / 48.30556; -88.36861 (MI-N)
Ontario border in Lake Superior north of Passage Island


Land:
48°15′46″N 88°15′46″W / 48.26278°N 88.26278°W / 48.26278; -88.26278
Gull Islands

41°41′46″N 84°48′22″W / 41.69611°N 84.80611°W / 41.69611; -84.80611 (MI-S)
IN-MI-OH tripoint 		Water:
43°35′28″N 82°07′22″W / 43.59111°N 82.12278°W / 43.59111; -82.12278 (MI-E)
Ontario border in Lake Huron northeast of Point Sanilac


Land:
42°58′29″N 82°25′06″W / 42.97472°N 82.41833°W / 42.97472; -82.41833
Shore of the St. Clair River in Port Huron

46°33′58″N 90°25′07″W / 46.56611°N 90.41861°W / 46.56611; -90.41861 (MI-W)[a]
Wisconsin border on the Montreal River where it meets Lake Superior
 Minnesota 49°23′04″N 95°09′12″W / 49.38444°N 95.15333°W / 49.38444; -95.15333[a][f]
MB-MN-ON tripoint in Lake of the Woods 		43°29′57″N 93°15′28″W / 43.49917°N 93.25778°W / 43.49917; -93.25778
Iowa border south of Glenville 		Water:
48°00′47″N 89°29′02″W / 48.01306°N 89.48389°W / 48.01306; -89.48389 (MN-E)
MI-MN-ON tripoint in Lake Superior


Land:
48°00′20″N 89°29′31″W / 48.00556°N 89.49194°W / 48.00556; -89.49194
Pigeon Point

48°58′08″N 97°14′21″W / 48.96889°N 97.23917°W / 48.96889; -97.23917[a]
North Dakota border on the Red River of the North in St. Vincent
 Mississippi 34°59′45″N 88°53′41″W / 34.99583°N 88.89472°W / 34.99583; -88.89472
Tennessee border north of Walnut 		30°10′27″N 89°27′48″W / 30.17417°N 89.46333°W / 30.17417; -89.46333
Lighthouse Point, southeast of Ansley 		34°53′32″N 88°05′53″W / 34.89222°N 88.09806°W / 34.89222; -88.09806
Alabama border on the Tennessee River northeast of Eastport 		31°15′06″N 91°39′19″W / 31.25167°N 91.65528°W / 31.25167; -91.65528[a]
Louisiana border on the Mississippi River northwest of Fort Adams
 Missouri 40°36′49″N 91°43′45″W / 40.61361°N 91.72917°W / 40.61361; -91.72917[a]
Iowa border on the Des Moines River northeast of Anson 		35°59′45″N 90°22′40″W / 35.99583°N 90.37778°W / 35.99583; -90.37778
Arkansas border southwest of Cardwell 		36°57′33″N 89°05′57″W / 36.95917°N 89.09917°W / 36.95917; -89.09917[a]
Kentucky border on the Mississippi River northeast of Wyatt 		40°34′25″N 95°46′29″W / 40.57361°N 95.77472°W / 40.57361; -95.77472[a]
Nebraska border on the Missouri River near the IA-MO-NE tripoint
 Montana 49°00′04″N 114°23′19″W / 49.00111°N 114.38861°W / 49.00111; -114.38861
British Columbia border northeast of Eureka in Glacier National Park 		44°21′29″N 112°50′44″W / 44.35806°N 112.84556°W / 44.35806; -112.84556 (MT-S)
Idaho border at a sister of Italian Peak southwest of Lima 		44°59′53″N 104°02′23″W / 44.99806°N 104.03972°W / 44.99806; -104.03972
South Dakota border near the MT-SD-WY tripoint 		48°00′00″N 116°02′57″W / 48.00000°N 116.04917°W / 48.00000; -116.04917
Idaho border southwest of Heron
 Nebraska 43°00′06″N 103°58′00″W / 43.00167°N 103.96667°W / 43.00167; -103.96667
South Dakota border near the KS-SD-WY tripoint 		39°59′59.8″N 95°21′41″W / 39.999944°N 95.36139°W / 39.999944; -95.36139
Kansas border southeast of Rulo 		40°00′00″N 95°18′30″W / 40.00000°N 95.30833°W / 40.00000; -95.30833[a]
IA-KS-NE tripoint on the Missouri River 		41°09′26″N 104°03′13″W / 41.15722°N 104.05361°W / 41.15722; -104.05361
Wyoming border southwest of Bushnell
 Nevada 42°00′07″N 114°49′25″W / 42.00194°N 114.82361°W / 42.00194; -114.82361
Idaho border northwest of Jackpot 		35°00′07″N 114°38′01″W / 35.00194°N 114.63361°W / 35.00194; -114.63361[a]
AZ-CA-NV tripoint on the Colorado River 		41°43′08″N 114°02′22″W / 41.71889°N 114.03944°W / 41.71889; -114.03944
Utah border northeast of Montello 		39°16′22″N 120°00′23″W / 39.27278°N 120.00639°W / 39.27278; -120.00639
California border northwest of Incline Village
 New Hampshire 45°18′21″N 71°05′09″W / 45.30583°N 71.08583°W / 45.30583; -71.08583
Quebec border near the ME-NH-QC tripoint 		42°41′49″N 71°17′40″W / 42.69694°N 71.29444°W / 42.69694; -71.29444
Massachusetts border southeast of Pelham 		42°57′44″N 70°36′10″W / 42.96222°N 70.60278°W / 42.96222; -70.60278
Anderson Ledge, in the Isles of Shoals 		42°51′13″N 72°33′26″W / 42.85361°N 72.55722°W / 42.85361; -72.55722[a]
Vermont border on the Connecticut River northwest of Hinsdale
 New Jersey 41°21′27″N 74°41′44″W / 41.35750°N 74.69556°W / 41.35750; -74.69556[a]
NJ-NY-PA tripoint on the Delaware River 		38°55′43″N 74°56′03″W / 38.92861°N 74.93417°W / 38.92861; -74.93417
Broadway Beach in Cape May 		Water:
40°59′50″N 73°53′37″W / 40.99722°N 73.89361°W / 40.99722; -73.89361
New York border on the Hudson River east of Alpine


Land:
40°59′50″N 73°54′09″W / 40.99722°N 73.90250°W / 40.99722; -73.90250
Station Rock, The Palisades

39°37′31″N 75°33′35″W / 39.62528°N 75.55972°W / 39.62528; -75.55972
Delaware border in the Killcohook National Wildlife Refuge southwest of Pennsville Township
 New Mexico 37°00′01″N 103°00′08″W / 37.00028°N 103.00222°W / 37.00028; -103.00222
CO-NM-OK tripoint 		31°19′55.8″N 108°45′23″W / 31.332167°N 108.75639°W / 31.332167; -108.75639
Sonora border near the Chihuahua-New Mexico-Sonora tripoint 		36°43′15″N 103°00′07″W / 36.72083°N 103.00194°W / 36.72083; -103.00194
Oklahoma border northeast of Seneca 		31°19′56″N 109°03′00″W / 31.33222°N 109.05000°W / 31.33222; -109.05000
AZ-NM-Sonora tripoint
 New York 45°00′57″N 74°49′36″W / 45.01583°N 74.82667°W / 45.01583; -74.82667[a]
Ontario border on the St. Lawrence River north of Robert Moses State Park - Thousand Islands 		40°29′46″N 74°14′51″W / 40.49611°N 74.24750°W / 40.49611; -74.24750
Ward's Point, Staten Island 		41°04′16″N 71°51′22″W / 41.07111°N 71.85611°W / 41.07111; -71.85611
Montauk Point, Camp Hero State Park 		Water:
42°30′00″N 79°45′45″W / 42.50000°N 79.76250°W / 42.50000; -79.76250
Pennsylvania border in Lake Erie west of Dunkirk


Land:
42°08′22″N 79°45′43″W / 42.13944°N 79.76194°W / 42.13944; -79.76194
Pennsylvania border west of Mina

 North Carolina 36°35′17″N 81°40′39″W / 36.58806°N 81.67750°W / 36.58806; -81.67750
NC-TN-VA tripoint 		33°50′35″N 77°57′38″W / 33.84306°N 77.96056°W / 33.84306; -77.96056
Cape Fear, Bald Head Island 		35°35′04″N 75°27′36″W / 35.58444°N 75.46000°W / 35.58444; -75.46000
Rodanthe Beach, Rodanthe 		34°59′18″N 84°19′19″W / 34.98833°N 84.32194°W / 34.98833; -84.32194
GA-NC-TN tripoint
 North Dakota 49°00′02″N 97°40′50″W / 49.00056°N 97.68056°W / 49.00056; -97.68056
Manitoba border northwest of Neche 		45°56′07″N 96°33′49″W / 45.93528°N 96.56361°W / 45.93528; -96.56361[12]
MN-ND-SD tripoint 		46°05′02″N 96°33′16″W / 46.08389°N 96.55444°W / 46.08389; -96.55444[a]
Minnesota border on the Bois de Sioux River northeast of Fairmount 		48°56′01″N 104°02′56″W / 48.93361°N 104.04889°W / 48.93361; -104.04889
Montana border west of Fortuna
 Northern Mariana Islands 20°33′12″N 144°53′37″E / 20.55333°N 144.89361°E / 20.55333; 144.89361
Farallon de Pajaros 		14°06′37″N 145°10′23″E / 14.11028°N 145.17306°E / 14.11028; 145.17306
Puntan Pona, Rota 		16°01′30″N 146°03′53″E / 16.02500°N 146.06472°E / 16.02500; 146.06472
Farallon de Medinilla 		20°32′25″N 144°53′11″E / 20.54028°N 144.88639°E / 20.54028; 144.88639
Farallon de Pajaros
 Ohio Water:
42°19′24″N 80°31′11″W / 42.32333°N 80.51972°W / 42.32333; -80.51972
OH-PA-ON tripoint in Lake Erie


Land:
41°58′38″N 80°31′10″W / 41.97722°N 80.51944°W / 41.97722; -80.51944
Pennsylvania border where it meets Lake Erie

38°24′12″N 82°33′04″W / 38.40333°N 82.55111°W / 38.40333; -82.55111 (OH-S)
West Virginia border on the shore of the Ohio River in Burlington 		41°14′59″N 80°31′07″W / 41.24972°N 80.51861°W / 41.24972; -80.51861
Pennsylvania border north of West Hill 		39°09′22″N 84°49′13″W / 39.15611°N 84.82028°W / 39.15611; -84.82028
Indiana border west of Elizabethtown
 Oklahoma 37°00′08″N 100°11′41″W / 37.00222°N 100.19472°W / 37.00222; -100.19472
Kansas border north of Knowles 		33°36′57″N 94°31′31″W / 33.61583°N 94.52528°W / 33.61583; -94.52528 (OK-southernmost point, McCurtain County)[a]
Gunn Lake, on the Texas border near the AR-OK-TX tripoint 		35°23′37″N 94°25′52″W / 35.39361°N 94.43111°W / 35.39361; -94.43111 (OK-easternmost point, Sequoyah County)[a]
Arkansas border on the Arkansas River east of Moffett 		36°40′32″N 103°00′09″W / 36.67556°N 103.00250°W / 36.67556; -103.00250
New Mexico border southwest of Wheeless
 Oregon 46°17′57″N 124°01′30″W / 46.29917°N 124.02500°W / 46.29917; -124.02500[a]
Washington border on the Columbia River north of Sand Island 		41°59′32″N 118°42′27″W / 41.99222°N 118.70750°W / 41.99222; -118.70750
Nevada border south of Fields 		45°36′40″N 116°27′48″W / 45.61111°N 116.46333°W / 45.61111; -116.46333[a]
Oregon border on the Snake River east of Imnaha 		42°48′08″N 124°36′47″W / 42.80222°N 124.61306°W / 42.80222; -124.61306
Northwest Rock, southwest of Cape Blanco
 Pennsylvania Water:
42°30′51″N 79°45′45″W / 42.51417°N 79.76250°W / 42.51417; -79.76250
NY-ON-PA tripoint, in Lake Erie


Land:
42°16′10″N 79°45′43″W / 42.26944°N 79.76194°W / 42.26944; -79.76194
New York border where it meets Lake Erie

39°43′11″N 76°59′28″W / 39.71972°N 76.99111°W / 39.71972; -76.99111
Maryland border south of Hanover 		41°21′45″N 74°41′22″W / 41.36250°N 74.68944°W / 41.36250; -74.68944[a]
New York border on the Delaware River in Matamoras 		Water:
42°19′24″N 80°31′11″W / 42.32333°N 80.51972°W / 42.32333; -80.51972
OH-ON-PA tripoint in Lake Erie


Land:
39°44′39″N 80°31′10″W / 39.74417°N 80.51944°W / 39.74417; -80.51944
West Virginia border west of New Freeport

 Puerto Rico 18°30′58″N 67°05′28″W / 18.51611°N 67.09111°W / 18.51611; -67.09111
Shacks Beach northwest of Jobos 		17°52′53″N 66°32′01″W / 17.88139°N 66.53361°W / 17.88139; -66.53361
Isla Morillito 		18°18′44″N 65°13′16″W / 18.31222°N 65.22111°W / 18.31222; -65.22111
Punta del Este, Isla Culebrita 		18°09′31″N 67°57′06″W / 18.15861°N 67.95167°W / 18.15861; -67.95167
Isla Monito
 Rhode Island 42°01′08″N 71°22′53″W / 42.01889°N 71.38139°W / 42.01889; -71.38139
Massachusetts border northeast of Cumberland 		41°08′48″N 71°35′35″W / 41.14667°N 71.59306°W / 41.14667; -71.59306
Black Rock Point, Block Island 		41°29′51″N 71°07′14″W / 41.49750°N 71.12056°W / 41.49750; -71.12056
Massachusetts border where it meets Rhode Island Sound 		Water:
41°18′16″N 71°54′26″W / 41.30444°N 71.90722°W / 41.30444; -71.90722
CT-NY-RI tripoint in Block Island Sound


Land:
41°19′44″N 71°53′33″W / 41.32889°N 71.89250°W / 41.32889; -71.89250
Connecticut border on Sandy Point Island

 South Carolina 35°12′56″N 82°23′24″W / 35.21556°N 82.39000°W / 35.21556; -82.39000 (SC-N)
North Carolina border north of Tigerville 		32°02′08″N 80°53′32″W / 32.03556°N 80.89222°W / 32.03556; -80.89222 (SC-S)[a]
Georgia border on the Savannah River southwest of Hilton Head Island 		33°51′03″N 78°32′27″W / 33.85083°N 78.54083°W / 33.85083; -78.54083 (SC-S)
North Carolina border where it meets the Atlantic Ocean on Bird Island 		34°41′57″N 83°21′14″W / 34.69917°N 83.35389°W / 34.69917; -83.35389[a]
Georgia border in Lake Yonah southwest of Long Creek
 South Dakota 45°56′43″N 103°34′25″W / 45.94528°N 103.57361°W / 45.94528; -103.57361
North Dakota border northwest of Ludlow 		42°28′47″N 96°28′47″W / 42.47972°N 96.47972°W / 42.47972; -96.47972[a]
Nebraska border on the Missouri River south of Dakota Dunes 		43°07′13″N 96°26′11″W / 43.12028°N 96.43639°W / 43.12028; -96.43639[a]
Iowa border on the Big Sioux River southeast of Hudson 		44°59′51″N 104°03′28″W / 44.99750°N 104.05778°W / 44.99750; -104.05778
MT-SD-WY tripoint
 Tennessee Water:
36°40′42″N 88°04′14″W / 36.67833°N 88.07056°W / 36.67833; -88.07056
Kentucky border in Kentucky Lake northwest of Dover


Land:
36°40′41″N 88°03′31″W / 36.67806°N 88.05861°W / 36.67806; -88.05861
Land Between the Lakes National Recreation Area, northwest of Dover

34°58′59″N 85°24′44″W / 34.98306°N 85.41222°W / 34.98306; -85.41222
Georgia border west of Lookout Mountain 		36°36′43″N 81°38′49″W / 36.61194°N 81.64694°W / 36.61194; -81.64694 (SC-S)
Virginia border northeast of the NC-TN-VA tripoint 		35°00′16″N 90°18′38″W / 35.00444°N 90.31056°W / 35.00444; -90.31056
Arkansas border southwest of Memphis (west of the Mississippi River)
 Texas 36°30′02″N 103°00′08″W / 36.50056°N 103.00222°W / 36.50056; -103.00222
NM-OK-TX tripoint 		25°50′14″N 97°23′39″W / 25.83722°N 97.39417°W / 25.83722; -97.39417[a]
Tamaulipas border on the Rio Grande River south of South Point 		31°01′54″N 93°30′29″W / 31.03167°N 93.50806°W / 31.03167; -93.50806
Louisiana border on the coast of the Sabine River northeast of Burkeville 		31°53′44″N 106°38′44″W / 31.89556°N 106.64556°W / 31.89556; -106.64556
New Mexico border west of Prado Verde
United States United States Minor Outlying Islands 28°13′06″N 177°22′17″W / 28.21833°N 177.37139°W / 28.21833; -177.37139
Sand Island, Midway Atoll 		00°22′50″S 160°00′18″W / 0.38056°S 160.00500°W / -0.38056; -160.00500
Jarvis Island 		18°23′50″N 75°00′07″W / 18.39722°N 75.00194°W / 18.39722; -75.00194
Navassa Island[g]


Excluding disputed islands:[h]
0°22′32″S 159°59′05″W / 0.37556°S 159.98472°W / -0.37556; -159.98472
Jarvis Island

19°18′01″N 166°35′56″E / 19.30028°N 166.59889°E / 19.30028; 166.59889
Wilkes Island, Wake Island[i]


Excluding disputed islands:
28°11′49″N 177°23′51″W / 28.19694°N 177.39750°W / 28.19694; -177.39750
Sand Island, Midway Atoll

 Utah 42°00′06″N 111°02′48″W / 42.00167°N 111.04667°W / 42.00167; -111.04667
ID-UT-WY tripoint 		36°59′52″N 110°28′11″W / 36.99778°N 110.46972°W / 36.99778; -110.46972
Arizona border west of Oljato-Monument Valley 		38°09′25″N 109°02′33″W / 38.15694°N 109.04250°W / 38.15694; -109.04250[9]
Utah border southeast of La Sal 		37°33′32″N 114°03′10″W / 37.55889°N 114.05278°W / 37.55889; -114.05278
Nevada border west of Enterprise
 Vermont 45°01′00″N 72°50′49″W / 45.01667°N 72.84694°W / 45.01667; -72.84694
Quebec border northwest of Berkshire 		42°43′37″N 72°27′30″W / 42.72694°N 72.45833°W / 42.72694; -72.45833
MA-NH-VT tripoint on the shore of the Connecticut River 		45°00′49″N 71°27′54″W / 45.01361°N 71.46500°W / 45.01361; -71.46500[a]
New Hampshire border on the Connecticut River east of Beecher Falls 		Water:
44°02′42″N 73°26′17″W / 44.04500°N 73.43806°W / 44.04500; -73.43806
New York border in Lake Champlain northwest of Bridport


Land:
44°02′50″N 73°25′27″W / 44.04722°N 73.42417°W / 44.04722; -73.42417
Crane Point on Lake Champlain, northwest of Bridport

United States Virgin Islands Virgin Islands (U.S.) 18°24′54″N 64°54′32″W / 18.41500°N 64.90889°W / 18.41500; -64.90889
Pelican Cay off the north coast of Little Hans Lollik Island 		17°40′25″N 64°54′02″W / 17.67361°N 64.90056°W / 17.67361; -64.90056
Southwest Point, Saint Croix 		17°45′19″N 64°33′55″W / 17.75528°N 64.56528°W / 17.75528; -64.56528[d]
Point Udall, St. Croix 		18°20′05″N 65°05′09″W / 18.33472°N 65.08583°W / 18.33472; -65.08583
Tip Rock, off of Savana Island
 Virginia 39°27′58″N 78°20′50″W / 39.46611°N 78.34722°W / 39.46611; -78.34722
West Virginia border northwest of Reynolds Store 		36°32′27″N 79°32′18″W / 36.54083°N 79.53833°W / 36.54083; -79.53833
North Carolina border southwest of Danville 		38°01′37″N 75°14′32″W / 38.02694°N 75.24222°W / 38.02694; -75.24222
Maryland border where it meets the Atlantic Ocean on Assateague Island 		36°36′03″N 83°40′31″W / 36.60083°N 83.67528°W / 36.60083; -83.67528
KY-TN-VA tripoint, in Cumberland Gap National Historical Park
 Washington 49°00′09″N 122°12′02″W / 49.00250°N 122.20056°W / 49.00250; -122.20056
British Columbia east of Sumas 		45°32′37″N 122°17′42″W / 45.54361°N 122.29500°W / 45.54361; -122.29500[a]
Oregon border on the Columbia River south of Reed Island State Park 		45°59′43″N 116°54′58″W / 45.99528°N 116.91611°W / 45.99528; -116.91611[a]
ID-OR-WA tripoint on the Snake River 		48°10′42″N 124°46′18″W / 48.17833°N 124.77167°W / 48.17833; -124.77167[f]
Bodelteh Islands, northwest of Beaver
 West Virginia 40°38′20″N 80°31′08″W / 40.63889°N 80.51889°W / 40.63889; -80.51889[a]
OH-PA-WV tripoint on the Ohio River 		37°12′06″N 81°40′42″W / 37.20167°N 81.67833°W / 37.20167; -81.67833
Virginia border south of Berwind 		39°19′17″N 77°43′10″W / 39.32139°N 77.71944°W / 39.32139; -77.71944
MD-VA-WV tripoint 		38°09′57″N 82°38′41″W / 38.16583°N 82.64472°W / 38.16583; -82.64472[a]
Kentucky border on the Tug Fork River northwest of Fort Gay
 Wisconsin Water:
47°18′35″N 90°39′17″W / 47.30972°N 90.65472°W / 47.30972; -90.65472 (WI-N)
Minnesota border north of the Apostle Islands in Lake Superior


Land:
47°04′51″N 90°43′46″W / 47.08083°N 90.72944°W / 47.08083; -90.72944
Devils Island, Apostle Islands

42°29′31″N 88°46′36″W / 42.49194°N 88.77667°W / 42.49194; -88.77667
Illinois border west of Sharon 		Water:
45°14′10″N 86°14′58″W / 45.23611°N 86.24944°W / 45.23611; -86.24944 (WI-E)
Michigan border in Lake Michigan east of Newport State Park


Land:
45°23′40″N 86°45′50″W / 45.39444°N 86.76389°W / 45.39444; -86.76389
Fish Island

45°38′28″N 92°53′22″W / 45.64111°N 92.88944°W / 45.64111; -92.88944[a]
Minnesota border on the St. Croix River south of Benson
 Wyoming 45°00′21″N 109°06′12″W / 45.00583°N 109.10333°W / 45.00583; -109.10333
Montana border northwest of Ralston 		40°59′41″N 110°24′41″W / 40.99472°N 110.41139°W / 40.99472; -110.41139
Utah border west of Lonetree 		41°23′53″N 104°03′08″W / 41.39806°N 104.05222°W / 41.39806; -104.05222
Nebraska border southeast of Albin 		45°00′03″N 111°03′16″W / 45.00083°N 111.05444°W / 45.00083; -111.05444
Montana border at the northwest corner of the state in Yellowstone National Park

Footnotes

  1. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as This extreme point is on a body of water, but the extreme point on land is not listed as it is less than half a minute away
  2. ^ Alaska uniquely straddles the 180 degree east-west meridian, which results in two different definitions of Easternmost and Westernmost points.
  3. ^ a b c d Also the extreme point in all 50 states
  4. ^ a b c d Also the extreme point of the US
  5. ^ a b Swains Island is disputed with Tokelau
  6. ^ a b c d Also the extreme point in the 48 contiguous states
  7. ^ Navassa Island is disputed with Haiti
  8. ^ In addition to Navassa Island, Bajo Nuevo Bank and Serranilla Bank, which would be the next most-eastwardly, are also disputed
  9. ^ Wake Island is disputed with the Marshall Islands

See also

References

  1. ^ All points otherwise unreferenced were found by manually plotting them in "Google Maps".
  2. ^ Jacobs, Frank (November 28, 2011), "The Not-So-Straight Story of the U.S.-Canadian Border", New York Times, retrieved November 26, 2023
  3. ^ "Point Barrow". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved May 3, 2009.
  4. ^ "Geographical Positions along the International Boundary, NAD83, O. Portland Canal (Alaska/British Columbia), Turning Point 16". International Boundary Commission.
  5. ^ "Pochnoi Point". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved May 3, 2009.
  6. ^ "Peaked Island". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved May 3, 2009.
  7. ^ "Amatignak Island". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved May 3, 2009.
  8. ^ https://sanctuaries.noaa.gov/news/features/0209_rose.html
    Rose Atoll Designated A Marine National Monument. Sanctuaries.noaa.gov. Retrieved 14 January 2018.
  9. ^ a b "Why does the eastern border of Utah have a kink in it?". Utah Geological Survey. Retrieved January 31, 2014.
  10. ^ "Angelo Towhead". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. January 15, 1980.
  11. ^ http://www.legislature.mi.gov/(S(crclotvx1nq5gp55re3x4b3o))/documents/mcl/pdf/mcl-2-201.pdf[bare URL PDF]
  12. ^ "North Dakota's Boundaries".
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