This is a list of the National Register of Historic Places listings in Ashtabula County, Ohio.

This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Ashtabula County, Ohio, United States. The locations of National Register properties and districts for which the latitude and longitude coordinates are included below, may be seen in an online map.^[1]

There are 41 properties and districts listed on the National Register in the county, including 1 National Historic Landmark. Another property was once listed but has been removed.

          This National Park Service list is complete through NPS recent listings posted March 8, 2024.^[2]

Current listings

[3]	Name on the Register[4]	Image	Date listed[5]	Location	City or town	Description
1	Ashtabula County Courthouse Group		June 30, 1975 (#75001316)	Northwestern corner of Jefferson and Chestnut Sts. 41°44′19″N 80°46′12″W / 41.7386°N 80.77°W / 41.7386; -80.77 (Ashtabula County Courthouse Group)	Jefferson
2	Ashtabula Harbor Light		August 4, 1983 (#83001943)	Ashtabula Harbor 41°55′06″N 80°47′45″W / 41.9183°N 80.7958°W / 41.9183; -80.7958 (Ashtabula Harbor Light)	Ashtabula
3	Ashtabula Harbour Commercial District		September 5, 1975 (#75001311)	Both sides of W. 5th St. from its 1200 block to the Ashtabula River 41°53′58″N 80°47′59″W / 41.8994°N 80.7997°W / 41.8994; -80.7997 (Ashtabula Harbour Commercial District)	Ashtabula
4	Ashtabula Main Avenue Historic District	Upload image	August 27, 2020 (#100005467)	Roughly bounded by Park Pl., Collins Blvd., West 48th St., Center St., and Park Ave. 41°51′56″N 80°46′56″W / 41.8656°N 80.7822°W / 41.8656; -80.7822 (Ashtabula Main Avenue Historic District)	Ashtabula
5	Ashtabula Post Office and Federal Building	Upload image	June 17, 2019 (#100004053)	4400 Main Ave. 41°52′02″N 80°46′53″W / 41.8672°N 80.7814°W / 41.8672; -80.7814 (Ashtabula Post Office and Federal Building)	Ashtabula
6	Eliphalet Austin House		February 24, 1975 (#75001313)	1879 State Route 45 in Austinburg 41°46′31″N 80°51′19″W / 41.7753°N 80.8553°W / 41.7753; -80.8553 (Eliphalet Austin House)	Austinburg Township
7	Blakeslee Log Cabin		April 1, 1998 (#98000319)	441 Seven Hills Rd., south of Ashtabula 41°50′41″N 80°46′09″W / 41.8447°N 80.7692°W / 41.8447; -80.7692 (Blakeslee Log Cabin)	Plymouth Township
8	Boice Fort and Village Site		July 24, 1974 (#74001398)	Western side of Pymatuning Creek, near Wayne[6] 41°32′25″N 80°38′10″W / 41.5403°N 80.6361°W / 41.5403; -80.6361 (Boice Fort and Village Site)	Wayne Township
9	Michael Cahill House		October 5, 1988 (#88001711)	1106 Walnut Boulevard 41°54′04″N 80°48′01″W / 41.9011°N 80.8004°W / 41.9011; -80.8004 (Michael Cahill House)	Ashtabula	Bed and breakfast since 1986
10	Castle Block	Upload image	March 26, 2020 (#100005127)	323-355 Center St. 41°51′54″N 80°47′07″W / 41.8649°N 80.7852°W / 41.8649; -80.7852 (Castle Block)	Ashtabula
11	The Cleveland Hotel		December 20, 2007 (#07001294)	230-238 State St. 41°56′39″N 80°33′18″W / 41.9441°N 80.5551°W / 41.9441; -80.5551 (The Cleveland Hotel)	Conneaut
12	Congregational Church of Austinburg		December 22, 1978 (#78002001)	State Route 307 in Austinburg 41°46′17″N 80°51′22″W / 41.7714°N 80.8561°W / 41.7714; -80.8561 (Congregational Church of Austinburg)	Austinburg Township
13	Conneaut Harbor West Breakwater Light	More images	April 10, 1992 (#92000243)	Western breakwater pierhead at the harbor entrance 41°58′47″N 80°33′29″W / 41.9797°N 80.5581°W / 41.9797; -80.5581 (Conneaut Harbor West Breakwater Light)	Conneaut
14	Conneaut Light Station Keeper's Dwelling		August 21, 1992 (#92001078)	1059 Harbor St. 41°58′01″N 80°33′07″W / 41.9669°N 80.5519°W / 41.9669; -80.5519 (Conneaut Light Station Keeper's Dwelling)	Conneaut
15	Conneaut Works		July 30, 1974 (#74001393)	Off Mill Rd.[7] 41°56′13″N 80°34′11″W / 41.9370°N 80.5697°W / 41.9370; -80.5697 (Conneaut Works)	Conneaut
16	David Cummins Octagon House	More images	September 9, 1974 (#74001394)	301 Liberty St. 41°56′28″N 80°33′26″W / 41.9411°N 80.5572°W / 41.9411; -80.5572 (David Cummins Octagon House)	Conneaut
17	Eagle Cliff Hotel		October 20, 1995 (#95001197)	5254 Lake Rd., E. 41°51′40″N 80°56′40″W / 41.8611°N 80.9444°W / 41.8611; -80.9444 (Eagle Cliff Hotel)	Geneva-on-the-Lake
18	Joshua Reed Giddings Law Office	More images	May 30, 1974 (#74001396)	112 N. Chestnut St. 41°44′26″N 80°46′09″W / 41.7406°N 80.7692°W / 41.7406; -80.7692 (Joshua Reed Giddings Law Office)	Jefferson
19	Griggs Grange No. 1467		December 13, 1995 (#95001414)	1467 Brown Rd., north of Jefferson 41°47′19″N 80°42′47″W / 41.7886°N 80.7131°W / 41.7886; -80.7131 (Griggs Grange No. 1467)	Plymouth Township
20	Francis E. Harmon House		February 24, 1975 (#75001312)	1641 E. Prospect Rd. 41°52′28″N 80°46′32″W / 41.8744°N 80.7756°W / 41.8744; -80.7756 (Francis E. Harmon House)	Ashtabula
21	Harpersfield Covered Bridge	More images	November 3, 1975 (#75001315)	County Road 154 over the Grand River 41°45′22″N 80°56′40″W / 41.7561°N 80.9444°W / 41.7561; -80.9444 (Harpersfield Covered Bridge)	Harpersfield Township
22	Harwood Block		March 21, 1978 (#78002002)	246, 250, and 256 Main St. 41°56′39″N 80°33′21″W / 41.944167°N 80.555833°W / 41.944167; -80.555833 (Harwood Block)	Conneaut
23	John Henderson House		November 7, 1976 (#76001368)	5248 Stanhope-Kelloggsville Rd. in West Andover 41°36′28″N 80°36′44″W / 41.607778°N 80.612222°W / 41.607778; -80.612222 (John Henderson House)	Andover Township
24	Hotel Ashtabula		June 20, 1985 (#85001342)	4726 Main Ave. 41°51′50″N 80°46′58″W / 41.863889°N 80.782778°W / 41.863889; -80.782778 (Hotel Ashtabula)	Ashtabula
25	Col. Erastus House House		July 30, 1974 (#74001397)	State Route 46 and Richmond-Footville Rd. at Rays Corner 41°41′00″N 80°46′51″W / 41.683472°N 80.780833°W / 41.683472; -80.780833 (Col. Erastus House House)	Lenox Township
26	Col. William Hubbard House		March 20, 1973 (#73001385)	Corner of Lake Ave. and Walnut Boulevard 41°53′59″N 80°48′17″W / 41.899722°N 80.804722°W / 41.899722; -80.804722 (Col. William Hubbard House)	Ashtabula
27	Jefferson Town Hall		June 18, 1981 (#81000428)	27 E. Jefferson St. 41°44′19″N 80°46′05″W / 41.738611°N 80.768056°W / 41.738611; -80.768056 (Jefferson Town Hall)	Jefferson
28	Kilpi Hall		December 12, 1976 (#76001365)	1025 Buffalo St. 41°57′55″N 80°33′19″W / 41.965278°N 80.555278°W / 41.965278; -80.555278 (Kilpi Hall)	Conneaut
29	Lake Shore & Michigan Southern Railroad Station		October 14, 1982 (#82001357)	147 E. Jefferson St. 41°44′21″N 80°45′43″W / 41.739167°N 80.761944°W / 41.739167; -80.761944 (Lake Shore & Michigan Southern Railroad Station)	Jefferson
30	Lake Shore And Michigan Southern Passenger Depot	More images	March 27, 1975 (#75001314)	342 Depot St. 41°56′59″N 80°33′33″W / 41.949722°N 80.559167°W / 41.949722; -80.559167 (Lake Shore And Michigan Southern Passenger Depot)	Conneaut
31	Mother of Sorrows Church		March 9, 1995 (#95000170)	1500 W. 6th St. 41°53′45″N 80°48′13″W / 41.895833°N 80.803611°W / 41.895833; -80.803611 (Mother of Sorrows Church)	Ashtabula
32	New Lyme Institute		January 1, 1976 (#76001367)	929 Brownville Rd. in South New Lyme 41°34′57″N 80°47′02″W / 41.582500°N 80.783889°W / 41.582500; -80.783889 (New Lyme Institute)	New Lyme Township
33	New Lyme Town Hall		August 6, 1975 (#75001317)	North of South New Lyme at 6000 State Route 46 41°35′09″N 80°46′42″W / 41.585972°N 80.778333°W / 41.585972; -80.778333 (New Lyme Town Hall)	New Lyme Township
34	L. W. Peck House	More images	January 1, 1976 (#76001366)	2646 Eagleville Rd. in Eagleville 41°42′54″N 80°50′48″W / 41.715°N 80.846667°W / 41.715; -80.846667 (L. W. Peck House)	Austinburg Township
35	Rock Creek School		February 9, 2005 (#05000023)	2987 High St. 41°39′46″N 80°51′28″W / 41.662778°N 80.857778°W / 41.662778; -80.857778 (Rock Creek School)	Rock Creek
36	Shandy Hall		June 28, 1974 (#74001395)	6333 S. Ridge Rd., southwest of Geneva 41°46′55″N 80°58′57″W / 41.781944°N 80.982500°W / 41.781944; -80.982500 (Shandy Hall)	Harpersfield Township
37	West Fifth Street Bridge	More images	August 23, 1985 (#85001801)	State Route 531 over the Ashtabula River 41°54′01″N 80°47′53″W / 41.900278°N 80.798056°W / 41.900278; -80.798056 (West Fifth Street Bridge)	Ashtabula
38	Windsor Corners District		September 5, 1975 (#75001318)	U.S. Route 322 and State Route 534 in Windsor 41°32′07″N 80°56′04″W / 41.535256°N 80.934422°W / 41.535256; -80.934422 (Windsor Corners District)	Windsor Township
39	Windsor Mills Christ Church Episcopal		May 29, 1975 (#75001319)	Wisell Rd. and U.S. Route 322 at Windsor Mills 41°32′09″N 80°57′43″W / 41.535833°N 80.961944°W / 41.535833; -80.961944 (Windsor Mills Christ Church Episcopal)	Windsor Township
40	Windsor Mills Fort and Village Site		October 21, 1975 (#75001321)	Off U.S. Route 322, southeast of Windsor Mills[8] 41°31′53″N 80°58′30″W / 41.531389°N 80.975000°W / 41.531389; -80.975000 (Windsor Mills Fort and Village Site)	Windsor Township
41	Wiswell Road Covered Bridge	More images	April 11, 1973 (#73001386)	Wiswell Rd. over Phelps Creek at Windsor Mills 41°31′59″N 80°57′50″W / 41.533056°N 80.963889°W / 41.533056; -80.963889 (Wiswell Road Covered Bridge)	Windsor Township

Former listing