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County · GEOID 17123

Marshall County, IL ZIP codes

19 ZIP/ZCTAs intersecting this county.

ACS 2023 population

11,715

Median household income

$69,818

Median home value

$137,800

U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: County Marshall County (GEOID 17123). Methodology

Combined population of ZIP/ZCTAs intersecting this county: 31,267 (19 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

Marshall County, IL ZIP code map

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

Population overlap

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