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County · GEOID 19101

Jefferson County, IA ZIP codes

16 ZIP/ZCTAs intersecting this county.

ACS 2023 population

15,676

Median household income

$56,824

Median home value

$161,200

U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: County Jefferson County (GEOID 19101). Methodology

Combined population of ZIP/ZCTAs intersecting this county: 36,590 (16 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

ZIP/ZCTA overlap with Jefferson County

Population overlap

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