St Clair County, Illinois

Property records, parcel maps, and county statistics for St Clair County, Illinois.

148,887 parcels mapped100% with owner of recordPop. 254,777
Open the St Clair County parcel map

St Clair County property records

148,887
parcels mapped
100%
with owner of record
Weekly
ownership and sale updates

Cities and towns in St Clair County

ZIP codes

Embed this parcel map on your site (free)

Questions about St Clair County property records

How do I find who owns property in St Clair County?

Open the CLILU map at St Clair County, tap a parcel and the owner of record appears with the address, acreage and value. You can also search by owner name or address. CLILU has 148,887 St Clair County parcels, 100% with owner names.

How often is St Clair County parcel data updated?

CLILU checks the county's published parcel records every week and updates ownership and sale information that changed.

Can I download St Clair County parcel data?

Yes. The full county is available as a CSV download, and the list builder exports filtered owner lists (absentee and out-of-state owners, vacant land, acreage, value, sale dates).

Are the St Clair County property lines exact?

They come from the county's GIS parcel layer and are approximate. For legal boundaries, use a licensed surveyor or the recorded plat.

254,777
Population
$70,178
Median Income
$37,824
Per Capita Income
5.5%
Unemployment

County statistics

Economic Data

Labor Force
128,302
Poverty Rate
13.6%
Building Permits (2023)
364
New Housing Units (2023)
540

Health & Safety

Healthcare Shortage Area
Yes
HPSA Score
25
Disaster Declarations (10yr)
5
County FIPS
17163

Other Counties in Illinois

About St Clair County, Illinois

St Clair County is located in Illinois with a population of 254,777. The median household income is $70,178, and the unemployment rate is 5.5%. CLILU provides free access to parcel maps and property ownership records for St Clair County.

Use the interactive map to search for properties by owner name or address. View parcel boundaries, acreage, and assessed values sourced directly from county assessor records.