# National Register of Historic Places listings in Ralls County, Missouri

This is a list of the National Register of Historic Places listings in Ralls County, Missouri.
This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Ralls County, Missouri, 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 9 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 | James B. Brown House | Upload image | January 26, 1984 (#84002603) | 2400 Carrs Lane 39°40′10″N 91°22′50″W﻿ / ﻿39.669444°N 91.380556°W﻿ / 39.669444; -91.380556﻿ (James B. Brown House) | Hannibal | |
| 2 | John Garth House | John Garth House | July 11, 1977 (#77000813) | South of Hannibal off U.S. Route 61 39°40′10″N 91°24′33″W﻿ / ﻿39.669444°N 91.409167°W﻿ / 39.669444; -91.409167﻿ (John Garth House) | Hannibal | Garth Woodside Mansion Bed and Breakfast Inn, built 1871 |
| 3 | Greenlawn Methodist Church and Cemetery | Upload image | June 21, 2007 (#07000569) | Junction of Route J and County Road D 39°28′47″N 91°41′10″W﻿ / ﻿39.479722°N 91.686111°W﻿ / 39.479722; -91.686111﻿ (Greenlawn Methodist Church and Cemetery) | Perry | |
| 4 | Ilasco Historic District | Ilasco Historic District More images | June 7, 2016 (#16000343) | 10998 Ilasco Trail 39°40′16″N 91°18′34″W﻿ / ﻿39.671201°N 91.30954°W﻿ / 39.671201; -91.30954﻿ (Ilasco Historic District) | Ilasco | |
| 5 | Lock and Dam No. 22 Historic District | Lock and Dam No. 22 Historic District More images | March 10, 2004 (#04000182) | Secondary Road E 39°38′13″N 91°14′52″W﻿ / ﻿39.636972°N 91.247778°W﻿ / 39.636972; -91.247778﻿ (Lock and Dam No. 22 Historic District) | New London | Extends into Pike County, Illinois |
| 6 | Ralls County Courthouse and Jail-Sheriff's House | Ralls County Courthouse and Jail-Sheriff's House | September 14, 1972 (#72000728) | Courthouse Sq. 39°35′09″N 91°24′01″W﻿ / ﻿39.585833°N 91.400278°W﻿ / 39.585833; -91.400278﻿ (Ralls County Courthouse and Jail-Sheriff's House) | New London | |
| 7 | St. Paul Catholic Church | St. Paul Catholic Church | May 31, 1979 (#79001392) | West of Center off Route EE 39°30′12″N 91°36′21″W﻿ / ﻿39.503333°N 91.605833°W﻿ / 39.503333; -91.605833﻿ (St. Paul Catholic Church) | Center | |
| 8 | St. Peter's Catholic Church | St. Peter's Catholic Church | November 14, 1980 (#80002392) | Southwest of Rensselaer on Route 2 39°37′11″N 91°36′14″W﻿ / ﻿39.619722°N 91.603889°W﻿ / 39.619722; -91.603889﻿ (St. Peter's Catholic Church) | Rensselaer | 1862 church on the site where Augustus Tolton, the first African American Catholic priest, was baptized. |
| 9 | Saverton School | Saverton School | December 10, 1998 (#98001505) | Junction of County Roads N and E 39°38′33″N 91°15′58″W﻿ / ﻿39.642500°N 91.266111°W﻿ / 39.642500; -91.266111﻿ (Saverton School) | Saverton | |