Pages in category "Lists of National Register of Historic Places in Illinois by county"
The following 102 pages are in this category, out of 102 total. This list may not reflect recent changes.
A
B
C
- National Register of Historic Places listings in Calhoun County, Illinois
- National Register of Historic Places listings in Carroll County, Illinois
- National Register of Historic Places listings in Cass County, Illinois
- National Register of Historic Places listings in Champaign County, Illinois
- National Register of Historic Places listings in Christian County, Illinois
- National Register of Historic Places listings in Clark County, Illinois
- National Register of Historic Places listings in Clay County, Illinois
- National Register of Historic Places listings in Clinton County, Illinois
- National Register of Historic Places listings in Coles County, Illinois
- National Register of Historic Places listings in Cook County, Illinois
- National Register of Historic Places listings in Crawford County, Illinois
- National Register of Historic Places listings in Cumberland County, Illinois
D
E
F
G
H
- National Register of Historic Places listings in Hamilton County, Illinois
- National Register of Historic Places listings in Hancock County, Illinois
- National Register of Historic Places listings in Hardin County, Illinois
- National Register of Historic Places listings in Henderson County, Illinois
- National Register of Historic Places listings in Henry County, Illinois
J
- National Register of Historic Places listings in Jackson County, Illinois
- National Register of Historic Places listings in Jasper County, Illinois
- National Register of Historic Places listings in Jefferson County, Illinois
- National Register of Historic Places listings in Jersey County, Illinois
- National Register of Historic Places listings in Jo Daviess County, Illinois
- National Register of Historic Places listings in Johnson County, Illinois
K
L
- National Register of Historic Places listings in Lake County, Illinois
- National Register of Historic Places listings in LaSalle County, Illinois
- National Register of Historic Places listings in Lawrence County, Illinois
- National Register of Historic Places listings in Lee County, Illinois
- National Register of Historic Places listings in Livingston County, Illinois
- National Register of Historic Places listings in Logan County, Illinois
M
- National Register of Historic Places listings in Macon County, Illinois
- National Register of Historic Places listings in Macoupin County, Illinois
- National Register of Historic Places listings in Madison County, Illinois
- National Register of Historic Places listings in Marion County, Illinois
- National Register of Historic Places listings in Marshall County, Illinois
- National Register of Historic Places listings in Mason County, Illinois
- National Register of Historic Places listings in Massac County, Illinois
- National Register of Historic Places listings in McDonough County, Illinois
- National Register of Historic Places listings in McHenry County, Illinois
- National Register of Historic Places listings in McLean County, Illinois
- National Register of Historic Places listings in Menard County, Illinois
- National Register of Historic Places listings in Mercer County, Illinois
- National Register of Historic Places listings in Monroe County, Illinois
- National Register of Historic Places listings in Montgomery County, Illinois
- National Register of Historic Places listings in Morgan County, Illinois
- National Register of Historic Places listings in Moultrie County, Illinois
P
- National Register of Historic Places listings in Peoria County, Illinois
- National Register of Historic Places listings in Perry County, Illinois
- National Register of Historic Places listings in Piatt County, Illinois
- National Register of Historic Places listings in Pike County, Illinois
- National Register of Historic Places listings in Pope County, Illinois
- National Register of Historic Places listings in Pulaski County, Illinois
- National Register of Historic Places listings in Putnam County, Illinois
R
S
- National Register of Historic Places listings in Saline County, Illinois
- National Register of Historic Places listings in Sangamon County, Illinois
- National Register of Historic Places listings in Schuyler County, Illinois
- National Register of Historic Places listings in Scott County, Illinois
- National Register of Historic Places listings in Shelby County, Illinois
- National Register of Historic Places listings in St. Clair County, Illinois
- National Register of Historic Places listings in Stark County, Illinois
- National Register of Historic Places listings in Stephenson County, Illinois
W
- National Register of Historic Places listings in Wabash County, Illinois
- National Register of Historic Places listings in Warren County, Illinois
- National Register of Historic Places listings in Washington County, Illinois
- National Register of Historic Places listings in Wayne County, Illinois
- National Register of Historic Places listings in White County, Illinois
- National Register of Historic Places listings in Whiteside County, Illinois
- National Register of Historic Places listings in Will County, Illinois
- National Register of Historic Places listings in Williamson County, Illinois
- National Register of Historic Places listings in Winnebago County, Illinois
- National Register of Historic Places listings in Woodford County, Illinois