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 Count ...

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, Flor ...

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, s ...

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, Missouri ...

Former listing

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 ...

Iroquois County Iroquois County is a county located in the northeast part of the U.S. state of Illinois. According to the 2020 United States Census, it has a population of 27,077. It is the only county in the United States to be named Iroquois, after the Americ ...

Jasper County Jasper County is the name of eight counties in the United States of America. All are named in honor of Sergeant William Jasper, a hero of the Revolutionary War. Five counties share a boundary with a Newton County, named for John Newton John ...

Jersey County Jersey County is a county located in the U.S. state of Illinois. At the 2020 census, it had a population of 21,512. The county seat and largest community is Jerseyville, with a population of 8,337 in 2010. The county's smallest incorporated co ...

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, K ...

Macoupin County Macoupin County is located in the U.S. state of Illinois. According to the 2010 United States Census, 2010 census, it had a population of 47,765. The county seat is Carlinville, Illinois, Carlinville. The primary industry is agriculture, consis ...

Massac County Massac County is a county in the U.S. state of Illinois. According to the 2010 census, it had a population of 15,429. Established in 1843 and named for a French fort founded in the 18th century, its county seat is Metropolis. Massac County is ...

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, ...

Perry County Perry County may refer to: United States *Perry County, Alabama *Perry County, Arkansas *Perry County, Illinois *Perry County, Indiana *Perry County, Kentucky *Perry County, Mississippi *Perry County, Missouri *Perry County, Ohio *Perry Coun ...

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 ...

Stephenson County Stephenson County is a county located in the U.S. state of Illinois. According to the 2010 United States Census, it had a population of 47,711. Its county seat is Freeport. Stephenson County is included in the Freeport, IL Micropolitan Statist ...

Whiteside County Whiteside County is a county located in the U.S. state of Illinois. According to the 2010 census, it had a population of 58,498. Its county seat is Morrison. The county is bounded on the west by the Mississippi River. Whiteside County comprises ...

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, s ...

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 ...

Perry County Perry County may refer to: United States Perry County, Alabama Perry County, Arkansas Perry County, Illinois Perry County, Indiana Perry County, Kentucky Perry County, Mississippi Perry County, Missouri Perry County, Ohio *Perry Coun ...

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 ...