# National Register of Historic Places listings in Jay County, Indiana

This is a list of the National Register of Historic Places listings in Jay County, Indiana.
This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Jay County, Indiana, United States. Latitude and longitude coordinates are provided for many National Register properties and districts; these locations may be seen together in a map.
There are 8 properties and districts listed on the National Register in the county.
Properties and districts located in incorporated areas display the name of the municipality, while properties and districts in unincorporated areas display the name of their civil township. Properties and districts split between multiple jurisdictions display the names of all jurisdictions.
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 | Floral Hall | Floral Hall | September 1, 1983 (#83000038) | E. Votaw and Morton Sts. at the Jay County Fairgrounds, east of Portland 40°26′29″N 84°58′04″W﻿ / ﻿40.441389°N 84.967778°W﻿ / 40.441389; -84.967778﻿ (Floral Hall) | Wayne Township |
| 2 | Grouping of Religious Buildings at Trinity | Grouping of Religious Buildings at Trinity More images | October 23, 1980 (#80000040) | Northeast of Portland at Trinity 40°32′29″N 84°50′28″W﻿ / ﻿40.541389°N 84.841111°W﻿ / 40.541389; -84.841111﻿ (Grouping of Religious Buildings at Trinity) | Wabash Township |
| 3 | James Haines Farm | James Haines Farm | March 15, 2000 (#00000202) | County Road 869E 200S, southeast of Portland 40°23′39″N 84°57′25″W﻿ / ﻿40.394167°N 84.956944°W﻿ / 40.394167; -84.956944﻿ (James Haines Farm) | Pike Township |
| 4 | Jay County Courthouse | Jay County Courthouse More images | May 12, 1981 (#81000016) | U.S. Route 27 40°26′01″N 84°58′43″W﻿ / ﻿40.433611°N 84.978611°W﻿ / 40.433611; -84.978611﻿ (Jay County Courthouse) | Portland |
| 5 | Portland Commercial Historic District | Portland Commercial Historic District More images | May 30, 1996 (#96000600) | Roughly Meridian St. from Arch St. to the S. Meridian St. Bridge, and Main and Walnut Sts. from Ship to Court Sts. 40°26′00″N 84°58′48″W﻿ / ﻿40.433333°N 84.980000°W﻿ / 40.433333; -84.980000﻿ (Portland Commercial Historic District) | Portland |
| 6 | Rebecca Rankin Round Barn | Rebecca Rankin Round Barn | April 2, 1993 (#93000189) | State Road 18, ¼ mile west of its junction with County Road 75E, and northwest of Poling 40°33′16″N 85°06′40″W﻿ / ﻿40.554444°N 85.111111°W﻿ / 40.554444; -85.111111﻿ (Rebecca Rankin Round Barn) | Penn Township |
| 7 | Redkey Historic District | Redkey Historic District More images | September 17, 1992 (#92001168) | Roughly High St. between Oak and Meridian Sts. 40°20′59″N 85°09′07″W﻿ / ﻿40.349722°N 85.151944°W﻿ / 40.349722; -85.151944﻿ (Redkey Historic District) | Redkey |
| 8 | Jonas Votaw House | Jonas Votaw House | December 6, 2004 (#04001308) | 1525 S. Meridian St. 40°24′47″N 84°58′34″W﻿ / ﻿40.413056°N 84.976111°W﻿ / 40.413056; -84.976111﻿ (Jonas Votaw House) | Portland |