Jefferson County, IA Map
Official Census boundary of Jefferson County, Iowa (FIPS 19101). Turn on flood zones, contours, land cover and school districts, measure distances, or click any spot to inspect it.
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Jefferson County Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
15,705
Households
6,952
Median household income
$61,620
Median age
43.7 years
Median home value
$163,400
Median gross rent
$883/mo
Owner-occupied homes
67.7%
Bachelor's degree or higher
43.2%
Below poverty level
15.2%
Land area
435.5 sq mi
Population density
36 / sq mi