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County · GEOID 17121

Marion County, IL ZIP codes

15 ZIP/ZCTAs intersecting this county.

ACS 2023 population

37,294

Median household income

$60,839

Median home value

$100,100

U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: County Marion County (GEOID 17121). Methodology

Combined population of ZIP/ZCTAs intersecting this county: 47,215 (15 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

Marion County, IL ZIP code map

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

Population overlap

Share of each ZIP/ZCTA’s population located within Marion 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 Marion County