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County · code 17027

Clinton CountyIllinois

Clinton County is a county in Illinois with its seat in Carlyle, formed in 1824.

  • Founded1824
  • County seatCarlyle
  • Named forDeWitt Clinton
  • Land area474 sq mi + 29 sq mi water
  • Population36,899 2020 Census
  • Parcels mapped27,179 checked 15 October 2026
Open the free map Click any parcel in Clinton County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

WashingtonBondMarionMadisonFayette Carlyle Census outline · seat marked

Where it is

Clinton on the map of Illinois

Illinois has 102 counties and county equivalents, each with its own records office. Shapes with a page are links.

Adams CountyAlexander CountyBond CountyBoone CountyBrown CountyBureau CountyCalhoun CountyCarroll CountyCass CountyChampaign CountyChristian CountyClark CountyClay CountyColes CountyCook CountyCrawford CountyCumberland CountyDeKalb CountyDe Witt CountyDouglas CountyDuPage CountyEdgar CountyEdwards CountyEffingham CountyFayette CountyFord CountyFranklin CountyFulton CountyGallatin CountyGreene CountyGrundy CountyHamilton CountyHancock CountyHardin CountyHenderson CountyHenry CountyIroquois CountyJackson CountyJasper CountyJefferson CountyJersey CountyJo Daviess CountyJohnson CountyKane CountyKankakee CountyKendall CountyKnox CountyLake CountyLaSalle CountyLawrence CountyLee CountyLivingston CountyLogan CountyMcDonough CountyMcHenry CountyMcLean CountyMacon CountyMacoupin CountyMadison CountyMarion CountyMarshall CountyMason CountyMassac CountyMenard CountyMercer CountyMonroe CountyMontgomery CountyMorgan CountyMoultrie CountyOgle CountyPeoria CountyPerry CountyPiatt CountyPike CountyPope CountyPulaski CountyPutnam CountyRandolph CountyRichland CountyRock Island CountySt. Clair CountySaline CountySangamon CountySchuyler CountyScott CountyShelby CountyStark CountyStephenson CountyTazewell CountyUnion CountyVermilion CountyWabash CountyWarren CountyWashington CountyWayne CountyWhite CountyWhiteside CountyWill CountyWilliamson CountyWinnebago CountyWoodford CountyClinton County Clinton
Counties of Illinois · Clinton highlighted

History

Formed in 1824 from Bond County, Fayette County and Washington County

An old deed may name a county that no longer exists, or a boundary that has since moved.

Clinton County was created on December 27, 1824, from Bond, Fayette, and Washington counties. The county was named after DeWitt Clinton.

Boundary changes from the Newberry Library, Atlas of Historical County Boundaries.

  1. 1824
    Clinton County created Clinton created from Bond, Fayette, and Washington.
    from Bondfrom Fayettefrom Washington
    · Ill. Laws 1824-1825, pp. 27-30

Land and parcels

What the maps cover in Clinton

Who publishes each layer, how good it is, and when we last checked.

Official
from the office that keeps the record
Good enough
a reliable statewide or national copy
Fallback
a guide only; check the official record
Missing
nothing public found yet

People and land

Clinton by the Census

Population
36,899 2020 Census count
Housing units
15,574 2020 Census count
Land area
474 square miles
Water area
29 square miles
People per sq mi
78 population ÷ land area

Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.

Rules and offices

Clinton County's official site

We have found the county's site but not its offices yet; start there.

County government

See your own lot on these maps

Open Clinton County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.

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Questions

Common questions about Clinton County

When was Clinton County founded?
Clinton County was founded in 1824, formed from Bond County, Fayette County and Washington County, and named after DeWitt Clinton.
What is the county seat of Clinton County?
The county seat of Clinton County is Carlyle.
Is there an online parcel map for Clinton County?
Yes. Clinton County publishes a parcel map of 27,179 parcels, rated official here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Clinton County's boundary or name changed?
Clinton County was created in 1824 from Bond County, Fayette County and Washington County. The Atlas of Historical County Boundaries records no boundary change since.
Is my lot in a flood zone?
We do not have flood maps for Clinton County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby

Counties next door