# National Register of Historic Places listings in Seneca County, Ohio

This is a list of the National Register of Historic Places listings in Seneca County, Ohio.
This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Seneca 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.
There are 45 properties and districts listed on the National Register in the county. Another property was once listed but has been removed.
This National Park Service list is complete through NPS recent listings posted February 28, 2025.
Download coordinates as:
* KML
* GPX (all coordinates)
* GPX (primary coordinates)
* GPX (secondary coordinates)

## Current listings

| | Name on the Register | Image | Date listed | Location | City or town |
| 1 | Aigler Alumni Building | Aigler Alumni Building More images | February 12, 1979 (#79002779) | 315 E. Market St. 41°06′58″N 83°10′10″W﻿ / ﻿41.116111°N 83.169444°W﻿ / 41.116111; -83.169444﻿ (Aigler Alumni Building) | Tiffin |
| 2 | Bagby-Hossler House | Bagby-Hossler House More images | July 10, 1986 (#86001562) | 530 Sycamore St. 41°05′51″N 83°11′15″W﻿ / ﻿41.097500°N 83.187500°W﻿ / 41.097500; -83.187500﻿ (Bagby-Hossler House) | Tiffin |
| 3 | Beatty Glass Company | Beatty Glass Company | January 7, 1980 (#80003217) | 4th Ave. and Vine St. 41°07′51″N 83°10′59″W﻿ / ﻿41.130833°N 83.183056°W﻿ / 41.130833; -83.183056﻿ (Beatty Glass Company) | Tiffin |
| 4 | Black Student Union Center | Black Student Union Center | February 12, 1979 (#79002780) | 120 Hedges St. 41°06′50″N 83°10′02″W﻿ / ﻿41.113889°N 83.167222°W﻿ / 41.113889; -83.167222﻿ (Black Student Union Center) | Tiffin |
| 5 | Bowman's Distillery | Bowman's Distillery | January 7, 1980 (#80003218) | 215 Riverside Dr. 41°07′20″N 83°10′18″W﻿ / ﻿41.122222°N 83.171667°W﻿ / 41.122222; -83.171667﻿ (Bowman's Distillery) | Tiffin |
| 6 | Camp Pittenger Historic District | Upload image | February 12, 1979 (#100009723) | 8877 S. Township Road 131 40°59′44″N 83°12′03″W﻿ / ﻿40.9955°N 83.2009°W﻿ / 40.9955; -83.2009﻿ (Camp Pittenger Historic District) | McCutchenville vicinity |
| 7 | College Hall | College Hall | February 12, 1979 (#79002778) | 310 E. Market St. 41°06′59″N 83°10′04″W﻿ / ﻿41.116389°N 83.167778°W﻿ / 41.116389; -83.167778﻿ (College Hall) | Tiffin |
| 8 | Ambrose Cory House | Ambrose Cory House | June 20, 1979 (#79001942) | 957 N. Union St. 41°10′08″N 83°25′09″W﻿ / ﻿41.168889°N 83.419167°W﻿ / 41.168889; -83.419167﻿ (Ambrose Cory House) | Fostoria |
| 9 | Daughters of America National Home | Daughters of America National Home | January 23, 2003 (#02001730) | 652 N. Sandusky St. 41°08′04″N 83°10′06″W﻿ / ﻿41.134444°N 83.168333°W﻿ / 41.134444; -83.168333﻿ (Daughters of America National Home) | Tiffin |
| 10 | Downtown Tiffin Historic District | Downtown Tiffin Historic District | May 2, 1978 (#78002186) | Roughly bounded by Riverside Dr., Jefferson, S. Washington St., E. Market, Madison, and Court Sts. 41°06′46″N 83°10′33″W﻿ / ﻿41.112778°N 83.175833°W﻿ / 41.112778; -83.175833﻿ (Downtown Tiffin Historic District) | Tiffin |
| 11 | Fort Ball-Railroad Historic District | Fort Ball-Railroad Historic District | June 20, 1979 (#79001944) | Roughly bounded by the Sandusky River and Perry, Sandusky and Washington Sts. 41°07′02″N 83°11′02″W﻿ / ﻿41.117222°N 83.183889°W﻿ / 41.117222; -83.183889﻿ (Fort Ball-Railroad Historic District) | Tiffin |
| 12 | Fostoria Downtown Historic District | Fostoria Downtown Historic District More images | September 28, 2001 (#01001065) | Roughly bounded by North St., South St., and the alleys east and west of Main St. 41°09′23″N 83°24′52″W﻿ / ﻿41.156389°N 83.414444°W﻿ / 41.156389; -83.414444﻿ (Fostoria Downtown Historic District) | Fostoria |
| 13 | Founders Hall, Heidelberg College | Founders Hall, Heidelberg College | March 20, 1973 (#73001534) | Perry St. (State Route 18) 41°06′59″N 83°10′02″W﻿ / ﻿41.116389°N 83.167222°W﻿ / 41.116389; -83.167222﻿ (Founders Hall, Heidelberg College) | Tiffin |
| 14 | France Hall | France Hall | February 12, 1979 (#79002776) | 119 Greenfield St. 41°06′55″N 83°09′52″W﻿ / ﻿41.115278°N 83.164444°W﻿ / 41.115278; -83.164444﻿ (France Hall) | Tiffin |
| 15 | Gerhart-Rust Residence | Gerhart-Rust Residence | February 12, 1979 (#79002766) | 285 E. Perry St. 41°07′00″N 83°10′06″W﻿ / ﻿41.116667°N 83.168333°W﻿ / 41.116667; -83.168333﻿ (Gerhart-Rust Residence) | Tiffin |
| 16 | Great Hall | Great Hall | February 12, 1979 (#79002777) | 44 Greenfield St. 41°06′53″N 83°10′06″W﻿ / ﻿41.114778°N 83.168333°W﻿ / 41.114778; -83.168333﻿ (Great Hall) | Tiffin |
| 17 | Hanson Machinery Company | Hanson Machinery Company | January 7, 1980 (#80003219) | 235 Miami St. 41°07′11″N 83°11′16″W﻿ / ﻿41.119722°N 83.187778°W﻿ / 41.119722; -83.187778﻿ (Hanson Machinery Company) | Tiffin |
| 18 | Hedges-Hunter-Keller-Bacon Gristmill | Hedges-Hunter-Keller-Bacon Gristmill | January 7, 1980 (#80003220) | 255 Riverside Dr. 41°07′25″N 83°10′14″W﻿ / ﻿41.123611°N 83.170556°W﻿ / 41.123611; -83.170556﻿ (Hedges-Hunter-Keller-Bacon Gristmill) | Tiffin |
| 19 | Henny Barn | Henny Barn | November 6, 1979 (#79003646) | Western half of the southwestern corner of section 1, on the northern side of County Road 34 east of the northwestern railroad tracks and east of Flat Rock 41°14′29″N 82°50′50″W﻿ / ﻿41.241389°N 82.847222°W﻿ / 41.241389; -82.847222﻿ (Henny Barn) | Thompson Township |
| 20 | Heter Farm | Heter Farm | March 29, 1979 (#79001941) | 8531 N. County Road 29, southwest of Bellevue 41°14′45″N 82°51′33″W﻿ / ﻿41.245833°N 82.859167°W﻿ / 41.245833; -82.859167﻿ (Heter Farm) | Thompson Township |
| 21 | William Hunter House | William Hunter House | January 7, 1980 (#80003221) | 260 Riverside Dr. 41°07′23″N 83°10′12″W﻿ / ﻿41.123056°N 83.17°W﻿ / 41.123056; -83.17﻿ (William Hunter House) | Tiffin |
| 22 | Junior Order United American Mechanics National Orphans' Home | Junior Order United American Mechanics National Orphans' Home | October 1, 1990 (#90001499) | 600 N. River Rd. 41°07′55″N 83°09′33″W﻿ / ﻿41.131944°N 83.159167°W﻿ / 41.131944; -83.159167﻿ (Junior Order United American Mechanics National Orphans' Home) | Tiffin |
| 23 | Laird Hall | Laird Hall | February 12, 1979 (#79002775) | 70 Greenfield St. 41°06′54″N 83°09′59″W﻿ / ﻿41.115°N 83.166389°W﻿ / 41.115; -83.166389﻿ (Laird Hall) | Tiffin |
| 24 | Miami Street Grade School | Miami Street Grade School More images | March 21, 1979 (#79001945) | 155 Miami St. 41°07′06″N 83°11′04″W﻿ / ﻿41.118333°N 83.184444°W﻿ / 41.118333; -83.184444﻿ (Miami Street Grade School) | Tiffin |
| 25 | Michaels Farm | Michaels Farm | November 29, 1979 (#79001943) | South of Kansas on State Route 635 41°13′43″N 83°16′46″W﻿ / ﻿41.228611°N 83.279444°W﻿ / 41.228611; -83.279444﻿ (Michaels Farm) | Liberty Township |
| 26 | Mueller Brewery | Mueller Brewery | January 7, 1980 (#80003222) | 146-164 Riverside Dr. 41°07′11″N 83°10′21″W﻿ / ﻿41.119722°N 83.1725°W﻿ / 41.119722; -83.1725﻿ (Mueller Brewery) | Tiffin |
| 27 | Christ Mueller House | Christ Mueller House | January 7, 1980 (#80003223) | 140-142 Riverside Dr. 41°07′11″N 83°10′22″W﻿ / ﻿41.119722°N 83.172778°W﻿ / 41.119722; -83.172778﻿ (Christ Mueller House) | Tiffin |
| 28 | North Sandusky Street Historic District | North Sandusky Street Historic District | May 27, 1980 (#80003224) | N. Sandusky St. 41°07′23″N 83°10′49″W﻿ / ﻿41.123056°N 83.180278°W﻿ / 41.123056; -83.180278﻿ (North Sandusky Street Historic District) | Tiffin |
| 29 | Northeast Tiffin Historic District | Northeast Tiffin Historic District | May 28, 1980 (#80003225) | Clinton, Ohio, and Hunter Sts. 41°07′12″N 83°10′09″W﻿ / ﻿41.12°N 83.169167°W﻿ / 41.12; -83.169167﻿ (Northeast Tiffin Historic District) | Tiffin |
| 30 | The Octagon | The Octagon More images | February 12, 1979 (#79002764) | 297 E. Perry St. 41°07′00″N 83°10′05″W﻿ / ﻿41.116667°N 83.168056°W﻿ / 41.116667; -83.168056﻿ (The Octagon) | Tiffin |
| 31 | Ohio Lantern Company | Ohio Lantern Company | January 7, 1980 (#80003226) | 60-72 Hudson St. 41°07′13″N 83°10′47″W﻿ / ﻿41.120278°N 83.179722°W﻿ / 41.120278; -83.179722﻿ (Ohio Lantern Company) | Tiffin |
| 32 | Omar Chapel | Omar Chapel | November 5, 1987 (#87001982) | 408 State Route 4, north of Attica 41°07′06″N 82°51′46″W﻿ / ﻿41.118333°N 82.862778°W﻿ / 41.118333; -82.862778﻿ (Omar Chapel) | Reed Township |
| 33 | Pfleiderer Center for Religion and the Humanities | Pfleiderer Center for Religion and the Humanities | February 12, 1979 (#79002773) | 28 Greenfield St. 41°06′55″N 83°10′05″W﻿ / ﻿41.115278°N 83.168056°W﻿ / 41.115278; -83.168056﻿ (Pfleiderer Center for Religion and the Humanities) | Tiffin |
| 34 | Pleasant Ridge United Methodist Church and Cemetery | Pleasant Ridge United Methodist Church and Cemetery | September 10, 1993 (#93000880) | Junction of State Route 101 and County Road 38, northeast of Tiffin 41°10′05″N 83°05′58″W﻿ / ﻿41.168056°N 83.099444°W﻿ / 41.168056; -83.099444﻿ (Pleasant Ridge United Methodist Church and Cemetery) | Pleasant Township |
| 35 | President's House | President's House | February 12, 1979 (#79002768) | 67 Greenfield St. 41°06′56″N 83°09′59″W﻿ / ﻿41.115556°N 83.166389°W﻿ / 41.115556; -83.166389﻿ (President's House) | Tiffin |
| 36 | St. Boniface Roman Catholic Church, School, Rectory, and Convent of the Sisters of the Precious Blood | St. Boniface Roman Catholic Church, School, Rectory, and Convent of the Sisters of the Precious Blood More images | November 17, 1982 (#82001487) | N. Perry St. 41°03′16″N 83°19′17″W﻿ / ﻿41.054333°N 83.321333°W﻿ / 41.054333; -83.321333﻿ (St. Boniface Roman Catholic Church, School, Rectory, and Convent of the Sisters of the Precious Blood) | New Riegel |
| 37 | Social Science House | Social Science House | February 12, 1979 (#79002782) | 266 E. Market St. 41°06′55″N 83°10′12″W﻿ / ﻿41.115333°N 83.170111°W﻿ / 41.115333; -83.170111﻿ (Social Science House) | Tiffin |
| 38 | Springdale | Springdale More images | August 26, 1993 (#93000878) | 318 Sycamore St. 41°06′09″N 83°10′56″W﻿ / ﻿41.102500°N 83.182222°W﻿ / 41.102500; -83.182222﻿ (Springdale) | Tiffin |
| 39 | Tiffin Agricultural Works | Tiffin Agricultural Works | January 7, 1980 (#80003227) | 40 Harrison St. 41°07′13″N 83°10′32″W﻿ / ﻿41.120278°N 83.175556°W﻿ / 41.120278; -83.175556﻿ (Tiffin Agricultural Works) | Tiffin |
| 40 | Tiffin Art Metal Company | Tiffin Art Metal Company | January 7, 1980 (#80003228) | 450 Wall St. 41°07′39″N 83°11′14″W﻿ / ﻿41.127500°N 83.187222°W﻿ / 41.127500; -83.187222﻿ (Tiffin Art Metal Company) | Tiffin |
| 41 | Tiffin Waterworks | Tiffin Waterworks | January 7, 1980 (#80003229) | 170 Ella St. 41°06′16″N 83°11′14″W﻿ / ﻿41.104444°N 83.187222°W﻿ / 41.104444; -83.187222﻿ (Tiffin Waterworks) | Tiffin |
| 42 | Umsted Farm | Umsted Farm More images | April 27, 1979 (#79001946) | North of Tiffin on County Road 38 41°10′05″N 83°09′37″W﻿ / ﻿41.168056°N 83.160278°W﻿ / 41.168056; -83.160278﻿ (Umsted Farm) | Pleasant Township |
| 43 | Wagner Brothers Bottling Works | Wagner Brothers Bottling Works | January 7, 1980 (#80003230) | 250-258 Benner St. 41°06′52″N 83°11′04″W﻿ / ﻿41.114583°N 83.184444°W﻿ / 41.114583; -83.184444﻿ (Wagner Brothers Bottling Works) | Tiffin |
| 44 | Webster Manufacturing | Webster Manufacturing | January 7, 1980 (#80003231) | 325 Hall St. 41°07′26″N 83°11′24″W﻿ / ﻿41.123889°N 83.190000°W﻿ / 41.123889; -83.190000﻿ (Webster Manufacturing) | Tiffin |
| 45 | Williard Hall | Williard Hall | February 12, 1979 (#79002771) | 116 Greenfield St. 41°06′52″N 83°09′52″W﻿ / ﻿41.114444°N 83.164444°W﻿ / 41.114444; -83.164444﻿ (Williard Hall) | Tiffin |

## Former listing

| | Name on the Register | Image | Date listed | Date removed | Location | City or town | Description |
| 1 | Fine Arts Building | Upload image | February 12, 1979 (#79002770) | January 31, 1995 | 338 E. Perry St. 41°07′00″N 83°09′58″W﻿ / ﻿41.1167°N 83.1661°W﻿ / 41.1167; -83.1661﻿ (Fine Arts Building) | Tiffin | |