# National Register of Historic Places listings in Hancock County, Illinois

This is a list of the National Register of Historic Places listings in Hancock County, Illinois.
This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Hancock County, Illinois, 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 13 properties and districts listed on the National Register in the county.
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 | Description |
| 1 | Cambre House and Farm | Cambre House and Farm | November 13, 1984 (#84000308) | Southwest of Niota 40°35′38″N 91°20′35″W﻿ / ﻿40.593889°N 91.343056°W﻿ / 40.593889; -91.343056﻿ (Cambre House and Farm) | Niota | |
| 2 | Carthage Courthouse Square Historic District | Carthage Courthouse Square Historic District | August 13, 1986 (#86001482) | Roughly bounded by Main, Adams, Wabash, and Madison Sts. 40°24′47″N 91°08′08″W﻿ / ﻿40.413056°N 91.135556°W﻿ / 40.413056; -91.135556﻿ (Carthage Courthouse Square Historic District) | Carthage | |
| 3 | Carthage Jail | Carthage Jail More images | March 20, 1973 (#73000703) | Walnut and N. Fayette Sts. 40°24′55″N 91°08′22″W﻿ / ﻿40.415278°N 91.139444°W﻿ / 40.415278; -91.139444﻿ (Carthage Jail) | Carthage | |
| 4 | Cyrus Felt House | Cyrus Felt House | March 18, 1980 (#80001366) | 3 miles north of Hamilton 40°26′01″N 91°22′11″W﻿ / ﻿40.433611°N 91.369722°W﻿ / 40.433611; -91.369722﻿ (Cyrus Felt House) | Hamilton | |
| 5 | Fort Madison Bridge | Fort Madison Bridge More images | August 27, 1999 (#99001035) | Iowa Highway 9 over the Mississippi River 40°37′24″N 91°17′32″W﻿ / ﻿40.623333°N 91.292222°W﻿ / 40.623333; -91.292222﻿ (Fort Madison Bridge) | Niota | A swinging truss toll bridge over the Mississippi River that connects Niota with Fort Madison in Lee County, Iowa |
| 6 | Hunziker Winery Site | Hunziker Winery Site | November 18, 2019 (#100004624) | Cedar Glen State Natural Area 40°21′47″N 91°24′48″W﻿ / ﻿40.363°N 91.413384°W﻿ / 40.363; -91.413384﻿ (Hunziker Winery Site) | Warsaw | |
| 7 | Keokuk Lock and Dam | Keokuk Lock and Dam | October 19, 1978 (#78001234) | At the Mississippi River 40°23′51″N 91°22′01″W﻿ / ﻿40.3975°N 91.366944°W﻿ / 40.3975; -91.366944﻿ (Keokuk Lock and Dam) | Hamilton | A 4,620 feet (1,410 m) long dam across the Mississippi River. It includes locks that are 1,200 feet (370 m) long and 110 feet (34 m) wide. Extends into Lee County, Iowa. |
| 8 | La Harpe City Hall | La Harpe City Hall | November 14, 1991 (#91001689) | 207 E. Main St. 40°35′00″N 90°58′02″W﻿ / ﻿40.583333°N 90.967222°W﻿ / 40.583333; -90.967222﻿ (La Harpe City Hall) | La Harpe | |
| 9 | La Harpe Historic District | La Harpe Historic District | April 30, 1987 (#87000031) | 100-124 W. Main St., 100-122 and 101-129 E. Main Sts., 101-121 S. Center St., and City Pk. 40°35′00″N 90°58′10″W﻿ / ﻿40.583333°N 90.969444°W﻿ / 40.583333; -90.969444﻿ (La Harpe Historic District) | La Harpe | |
| 10 | Lock and Dam No. 19 Historic District | Lock and Dam No. 19 Historic District More images | March 10, 2004 (#04000179) | West of central Hamilton 40°23′45″N 91°22′32″W﻿ / ﻿40.395847°N 91.375681°W﻿ / 40.395847; -91.375681﻿ (Lock and Dam No. 19 Historic District) | Hamilton | Historic district that includes 7 buildings, 12 structures, 1 object. Extends into Lee County, Iowa. |
| 11 | Nauvoo Historic District | Nauvoo Historic District More images | October 15, 1966 (#66000321) | Nauvoo and its environs 40°33′05″N 91°22′18″W﻿ / ﻿40.551389°N 91.371667°W﻿ / 40.551389; -91.371667﻿ (Nauvoo Historic District) | Nauvoo | |
| 12 | William J. Reimbold House | William J. Reimbold House | December 2, 1987 (#87002033) | 950 White St. 40°32′51″N 91°23′15″W﻿ / ﻿40.547500°N 91.387500°W﻿ / 40.547500; -91.387500﻿ (William J. Reimbold House) | Nauvoo | |
| 13 | Warsaw Historic District | Warsaw Historic District | December 16, 1977 (#77000486) | Roughly bounded by the Mississippi River, Marion and 11th Sts. 40°21′48″N 91°26′07″W﻿ / ﻿40.363333°N 91.435278°W﻿ / 40.363333; -91.435278﻿ (Warsaw Historic District) | Warsaw | |