This list is intended to provide a comprehensive listing of entries in the National Register of Historic Places in Town of Smithtown, New York. The locations of National Register properties for which the latitude and longitude coordinates are included below, may be seen in an online map.^[1]

Listings

[2]	Name on the Register	Image	Date listed[3]	Location	City or town	Description
1	Beachbend	Upload image	August 9, 1993 (#93000698)	Smith Lane 40°54′10″N 73°11′03″W / 40.902778°N 73.184167°W / 40.902778; -73.184167 (Beachbend)	Nissequogue
2	Blydenburgh Park Historic District	More images	August 11, 1983 (#83001807)	Blydenburgh County Park 40°50′36″N 73°13′34″W / 40.843333°N 73.226111°W / 40.843333; -73.226111 (Blydenburgh Park Historic District)	Smithtown
3	Box Hill Estate	Upload image	December 4, 1973 (#73001276)	Northwest of St. James on Moriches Road 40°53′22″N 73°10′36″W / 40.889444°N 73.176667°W / 40.889444; -73.176667 (Box Hill Estate)	St. James
4	By-the-Harbor	Upload image	August 9, 1993 (#93000699)	Moriches Road 40°53′30″N 73°10′51″W / 40.891667°N 73.180833°W / 40.891667; -73.180833 (By-the-Harbor)	Nissequogue
5	East Farm		August 9, 1993 (#93000700)	Harbor Road, North side, at Shep Jones Lane 40°54′48″N 73°09′17″W / 40.913333°N 73.154722°W / 40.913333; -73.154722 (East Farm)	Head of the Harbor
6	First Presbyterian Church	More images	December 23, 1977 (#77000983)	175 East Main Street 40°51′24″N 73°11′18″W / 40.856667°N 73.188333°W / 40.856667; -73.188333 (First Presbyterian Church)	Branch
7	Fort Salonga	Upload image	May 21, 1982 (#82003406)	Address Restricted	Fort Salonga
8	Halliock Inn		August 7, 1974 (#74001310)	263 East Main Street 40°51′20″N 73°10′50″W / 40.855556°N 73.180556°W / 40.855556; -73.180556 (Halliock Inn)	Branch
9	Harbor House		August 9, 1993 (#93000701)	Spring Hollow Road 40°53′48″N 73°10′44″W / 40.896667°N 73.178889°W / 40.896667; -73.178889 (Harbor House)	Nissequogue
10	Hauppauge Methodist Episcopal Church		August 27, 2020 (#100005484)	473 Town Line Road 40°49′31″N 73°12′20″W / 40.8253°N 73.2055°W / 40.8253; -73.2055 (Hauppauge Methodist Episcopal Church)	Hauppauge
11	Land of Clover		August 9, 1993 (#93000702)	Long Beach Road, South side 40°54′48″N 73°11′12″W / 40.913333°N 73.186667°W / 40.913333; -73.186667 (Land of Clover)	Nissequogue	The former Lathrop Brown Estate, now occupied by a private boarding school called The Knox School.[4][5]
12	The Mallows	Upload image	August 9, 1993 (#93000703)	Emmet Way 40°54′59″N 73°09′07″W / 40.916389°N 73.151944°W / 40.916389; -73.151944 (The Mallows)	Head of the Harbor
13	Mills Pond District	More images	August 1, 1973 (#73001277)	East of St. James on NY 25A 40°54′02″N 73°08′58″W / 40.900556°N 73.149444°W / 40.900556; -73.149444 (Mills Pond District)	St. James
14	James W. and Anne Smith Phyfe Estate	Upload image	August 9, 1993 (#93000704)	87 Stillwater Road 40°54′34″N 73°11′04″W / 40.909444°N 73.184444°W / 40.909444; -73.184444 (James W. and Anne Smith Phyfe Estate)	Nissequogue
15	Rassapeague		August 9, 1993 (#93000705)	Long Beach Road, South side 40°54′58″N 73°10′55″W / 40.916111°N 73.181944°W / 40.916111; -73.181944 (Rassapeague)	Nissequogue
16	William J. Ryan Estate	Upload image	August 9, 1993 (#93000706)	Moriches Road 40°54′07″N 73°11′20″W / 40.901944°N 73.188889°W / 40.901944; -73.188889 (William J. Ryan Estate)	Nissequogue
17	Saint James District		July 20, 1973 (#73001275)	On NY 25A 40°53′02″N 73°09′46″W / 40.883889°N 73.162778°W / 40.883889; -73.162778 (Saint James District)	Saint James
18	St. James Firehouse		August 4, 2023 (#100009195)	533 NY 25A 40°53′14″N 73°09′31″W / 40.8872°N 73.1585°W / 40.8872; -73.1585 (St. James Firehouse)	Saint James
19	Shore Cottage	Upload image	August 9, 1993 (#93000707)	Harbor Road, East side 40°53′39″N 73°10′23″W / 40.894167°N 73.173056°W / 40.894167; -73.173056 (Shore Cottage)	Head of the Harbor
20	Obadiah Smith House	More images	December 6, 1996 (#96001422)	853 Saint Johnland Road 40°53′38″N 73°13′47″W / 40.893889°N 73.229722°W / 40.893889; -73.229722 (Obadiah Smith House)	Kings Park
21	Thatch Meadow Farm	Upload image	February 20, 2020 (#93000711)	Harbor Rd., west side, opposite Bacon Rd. 40°54′31″N 73°09′32″W / 40.9085°N 73.1588°W / 40.9085; -73.1588 (Thatch Meadow Farm)	Head of the Harbor	Last remaining portion of old estate, built on 18th century farm.
22	Village of Branch Historic District	Upload image	September 11, 1986 (#86002514)	Along north side of Middle Country Road 40°51′56″N 73°10′59″W / 40.865556°N 73.183056°W / 40.865556; -73.183056 (Village of Branch Historic District)	Branch
23	Frederick and Annie Wagner Residence and St. Patrick's Roman Catholic Church	More images	August 8, 2019 (#100004240)	37 Juniper Avenue & 38 Mayflower Avenue 40°51′17″N 73°12′08″W / 40.8548°N 73.2023°W / 40.8548; -73.2023 (Frederick and Annie Wagner Residence and St. Patrick's Roman Catholic Church)	Smithtown	1912 Gustav Stickley house for early American motorsports promoter, and adjacent Tudor Revival Catholic church that served Smithtown's Irish American community from same era
24	Kate Annette Wetherill Estate		August 9, 1993 (#93000708)	Harbor Hill Road, South side 40°53′32″N 73°10′11″W / 40.892222°N 73.169722°W / 40.892222; -73.169722 (Kate Annette Wetherill Estate)	Head of the Harbor
25	Woodcrest	Upload image	August 9, 1993 (#93000709)	Moriches Road 40°54′00″N 73°10′59″W / 40.9°N 73.183056°W / 40.9; -73.183056 (Woodcrest)	Nissequogue
26	Wyandanch Club Historic District	More images	August 3, 1990 (#90001143)	Jericho Turnpike, southwest of its junction with Meadow Road 40°51′03″N 73°13′40″W / 40.850833°N 73.227778°W / 40.850833; -73.227778 (Wyandanch Club Historic District)	Smithtown
27	York Hall	Upload image	October 23, 2023 (#100009455)	799 Saint Johnland Rd. 40°53′49″N 73°14′10″W / 40.8970°N 73.2361°W / 40.8970; -73.2361 (York Hall)	Kings Park