National Register of Historic Places listings in Mercer County, Illinois facts for kids

Location of Mercer County in Illinois

This is a list of the National Register of Historic Places listings in Mercer County, Illinois.

This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Mercer 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 12 properties and districts listed on the National Register in the county. Another property was once listed but has been removed.

Current listings

	Name on the Register	Image	Date listed	Location	City or town	Description
1	Commercial House		May 9, 1983 (#83000332)	5th and Main St. 41°06′03″N 90°56′31″W / 41.100833°N 90.942083°W / 41.100833; -90.942083 (Commercial House)	Keithsburg
2	Downtown Aledo Historic District		June 7, 2016 (#16000328)	100-200 blks. N. College, 100, 200, 300 blks. S. College, 100 blk. NW. 2nd, 200 blk. SW. 2nd Aves. 41°12′05″N 90°44′57″W / 41.201445°N 90.749246°W / 41.201445; -90.749246 (Downtown Aledo Historic District)	Aledo
3	Gideon Ives House		November 8, 2000 (#00001332)	408 E. Jefferson St. 41°10′10″N 90°59′39″W / 41.169444°N 90.994167°W / 41.169444; -90.994167 (Gideon Ives House)	New Boston
4	Keithsburg Historic District		May 8, 1986 (#86001004)	Roughly bounded by Jackson, 5th, Washington, and 3rd Sts. 41°06′03″N 90°56′32″W / 41.100833°N 90.942222°W / 41.100833; -90.942222 (Keithsburg Historic District)	Keithsburg
5	Lock and Dam No. 17 Historic District		March 10, 2004 (#04000177)	173 Lock and Dam Rd. 41°11′31″N 91°03′29″W / 41.191944°N 91.058056°W / 41.191944; -91.058056 (Lock and Dam No. 17 Historic District)	New Boston
6	Mercer County Courthouse		June 17, 1982 (#82002589)	SE 3rd St. (IL 17) 41°11′58″N 90°44′55″W / 41.199444°N 90.748611°W / 41.199444; -90.748611 (Mercer County Courthouse)	Aledo
7	Mercer County Fairgrounds		May 2, 1997 (#97000380)	12th Ave., SW., .5 mi. S of jct. with IL 17 41°11′30″N 90°45′52″W / 41.191667°N 90.764444°W / 41.191667; -90.764444 (Mercer County Fairgrounds)	Aledo
8	Mercer County Jail		July 25, 1997 (#97000816)	309 S. College Ave. 41°11′57″N 90°44′58″W / 41.199167°N 90.749444°W / 41.199167; -90.749444 (Mercer County Jail)	Aledo
9	Sherrard Banking Company		February 16, 1996 (#96000092)	314 Third St. 41°19′08″N 90°30′20″W / 41.318889°N 90.505556°W / 41.318889; -90.505556 (Sherrard Banking Company)	Sherrard
10	James S. Thompson House		December 3, 2002 (#02000846)	804 North St. 41°10′27″N 90°59′46″W / 41.17425°N 90.996°W / 41.17425; -90.996 (James S. Thompson House)	New Boston
11	Levi Willits House		April 20, 1995 (#95000488)	202 Main St. 41°10′07″N 90°59′59″W / 41.168611°N 90.999722°W / 41.168611; -90.999722 (Levi Willits House)	New Boston

Former listing