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County · GEOID 17187

Warren County, IL ZIP codes

14 ZIP/ZCTAs intersecting this county.

ACS 2023 population

16,576

Median household income

$64,650

Median home value

$101,300

U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: County Warren County (GEOID 17187). Methodology

Combined population of ZIP/ZCTAs intersecting this county: 52,892 (14 ZIPs).

Combined population of ZIP/ZCTAs intersecting this county. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census county ACS headline above. Methodology

Warren County, IL ZIP code map

Census ZIP Code Tabulation Areas in Warren County, IL
ZIP Code Tabulation Areas inside Warren County, IL. Boundaries: U.S. Census Bureau. Methodology · Data sources
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ZIP/ZCTA overlap with Warren County

Population overlap

Share of each ZIP/ZCTA’s population located within Warren County, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.

ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology

ZIP codes intersecting Warren County