This is a list of properties and districts in

Illinois Illinois ( ) is a U.S. state, state in the Midwestern United States, Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolita ...

that are on the

National Register of Historic Places The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic v ...

. There are over 1,900 in total. Of these, 85 are

National Historic Landmark A National Historic Landmark (NHL) is a building, district, object, site, or structure that is officially recognized by the United States government for its outstanding historical significance. Only some 2,500 (~3%) of over 90,000 places listed ...

Numbers of listings by county

Former listing

Calhoun County Calhoun County is the name of several counties in the United States of America named after U.S. Vice President John C. Calhoun: * Calhoun County, Alabama * Calhoun County, Arkansas * Calhoun County, Florida * Calhoun County, Georgia * Calhoun Cou ...

Former listing

Christian County Christian County is the name of several counties in the United States: * Christian County, Illinois * Christian County, Kentucky * Christian County, Missouri Christian County is located in the southwestern part of the U.S. state of Missouri. ...

Clay County Clay County is the name of 18 counties in the United States. Most are named for Henry Clay, U.S. Senator and statesman: * Clay County, Alabama * Clay County, Arkansas (named for John Clayton, and originally named Clayton County) * Clay County, Fl ...

Clinton County Clinton County may refer to: *Counties named for George Clinton, first and third Governor of New York, and later the fourth Vice President of the United States: **Clinton County, New York ** Clinton County, Ohio *Counties named for DeWitt Clinton, ...

Coles County Coles County is a county in Illinois. As of the 2020 census, the population was 46,863. Its county seat is Charleston, which is also the home of Eastern Illinois University. Coles County is part of the Charleston- Mattoon, IL Micropolitan S ...

Cook County Cook County is the most populous county in the U.S. state of Illinois and the second-most-populous county in the United States, after Los Angeles County, California. More than 40% of all residents of Illinois live within Cook County. As of 20 ...

Crawford County Crawford County is the name of eleven counties in the United States: * Crawford County, Arkansas * Crawford County, Georgia * Crawford County, Illinois * Crawford County, Indiana * Crawford County, Iowa * Crawford County, Kansas * Crawford County, ...

Cumberland County Cumberland County may refer to: Australia * Cumberland County, New South Wales * the former name of Cumberland Land District, Tasmania, Australia Canada *Cumberland County, Nova Scotia United Kingdom *Cumberland, historic county *Cumberlan ...

DeKalb County DeKalb County may refer to one of several counties in the United States, all of which were named for Baron Johan DeKalb: * DeKalb County, Alabama * DeKalb County, Georgia * DeKalb County, Illinois * DeKalb County, Indiana * DeKalb County, Missour ...

Former listing

DuPage County DuPage County ( ) is a county in the U.S. state of Illinois, and one of the collar counties of the Chicago metropolitan area. As of the 2020 census, the population was 932,877, making it Illinois' second-most populous county. Its county seat is ...

Edgar County Edgar County is a county located in the U.S. state of Illinois. As of the 2020 United States Census, the population was 16,866. Its county seat is Paris. History Edgar County was formed out of Clark County in 1823. It was named for John Edgar ...

Former listings

Fulton County Fulton County is the name of eight counties in the United States of America. Most are named for Robert Fulton, inventor of the first practical steamboat: *Fulton County, Arkansas, named after Governor William Savin Fulton *Fulton County, Georgia *F ...

Jo Daviess County Jo Daviess County () is the northwesternmost county in the U.S. state of Illinois. According to the 2010 census, it had a population of 22,678. Its county seat is Galena. Jo Daviess County is part of the Tri-State Area and is located near D ...

Kankakee County Kankakee County is a county located in the U.S. state of Illinois. According to the 2010 census, it has a population of 113,449. Its county seat is Kankakee. Kankakee County comprises the Kankakee, IL Metropolitan Statistical Area. History St ...

LaSalle County LaSalle County is located within the Fox Valley and Illinois River Valley regions of the U.S. state of Illinois. As of the 2020 Census, it had a population of 109,658. Its county seat and largest city is Ottawa. LaSalle County is part of the O ...

Logan County Logan County is the name of ten current counties and one former county in the United States: * Logan County, Arkansas * Logan County, Colorado * Logan County, Idaho (1889–1895) * Logan County, Illinois * Logan County, Kansas * Logan County, ...

Former listing

Monroe County Monroe County may refer to seventeen counties in the United States, all named for James Monroe: * Monroe County, Alabama *Monroe County, Arkansas * Monroe County, Florida * Monroe County, Georgia *Monroe County, Illinois *Monroe County, Indian ...

Moultrie County Moultrie County is a County (United States), county in the U.S. state of Illinois. According to the 2020 United States Census, its population was 14,526. Its county seat is Sullivan, Illinois, Sullivan. The name is pronounced as in "mole tree", ...

Ogle County Ogle County is a county in the northern part of the U.S. state of Illinois. According to the 2010 United States Census, it had a population of 53,497. Its county seat is Oregon, and its largest city is Rochelle. Ogle County comprises Rochelle, ...

Peoria County Peoria County is located in the U.S. state of Illinois. The 2020 United States Census listed its population at 181,830. Its county seat is Peoria. Peoria County is part of the Peoria, IL Metropolitan Statistical Area. History Peoria County was ...

Piatt County Piatt County is a county in Illinois. According to the 2020 United States Census, it had a population of 16,673. Its county seat is Monticello. Piatt County is part of the Champaign–Urbana, IL Metropolitan Statistical Area. History The firs ...

Randolph County Randolph County is the name of eight counties in the United States: *Randolph County, Alabama *Randolph County, Arkansas *Randolph County, Georgia *Randolph County, Illinois *Randolph County, Indiana *Randolph County, Missouri *Randolph County, Nort ...

Rock Island County Rock Island County is a county located in the U.S. state of Illinois, bounded on the west by the Mississippi River. According to the 2010 census, it had a population of 147,546. Its county seat is Rock Island; its largest city is neighboring ...

Sangamon County Sangamon County is located in the center of the U.S. state of Illinois. According to the 2010 census, it had a population of 197,465. Its county seat and largest city is Springfield, the state capital. Sangamon County is included in the S ...

Warren County Warren County is the name of fourteen counties in the USA. Some are named after General Joseph Warren, who was killed in the Battle of Bunker Hill in the American Revolutionary War: * Warren County, Georgia * Warren County, Illinois * Warren County ...

Will County Will may refer to: Common meanings * Will and testament, instructions for the disposition of one's property after death * Will (philosophy), or willpower * Will (sociology) * Will, volition (psychology) * Will, a modal verb - see Shall and will ...

See also

References

Clinton County Clinton County may refer to: Counties named for George Clinton, first and third Governor of New York, and later the fourth Vice President of the United States: Clinton County, New York Clinton County, Ohio Counties named for DeWitt Clinton, ...

Cumberland County Cumberland County may refer to: Australia * Cumberland County, New South Wales * the former name of Cumberland Land District, Tasmania, Australia Canada Cumberland County, Nova Scotia United Kingdom Cumberland, historic county *Cumberlan ...

Fulton County Fulton County is the name of eight counties in the United States of America. Most are named for Robert Fulton, inventor of the first practical steamboat: Fulton County, Arkansas, named after Governor William Savin Fulton Fulton County, Georgia *F ...

Monroe County Monroe County may refer to seventeen counties in the United States, all named for James Monroe: * Monroe County, Alabama Monroe County, Arkansas Monroe County, Florida * Monroe County, Georgia Monroe County, Illinois Monroe County, Indian ...

Randolph County Randolph County is the name of eight counties in the United States: Randolph County, Alabama Randolph County, Arkansas Randolph County, Georgia Randolph County, Illinois Randolph County, Indiana Randolph County, Missouri *Randolph County, Nort ...