Polk County, IA Map
Official Census boundary of Polk County, Iowa (FIPS 19153). Turn on flood zones, contours, land cover and school districts, measure distances, or click any spot to inspect it.
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Polk County Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
503,175
Households
205,358
Median household income
$83,576
Median age
36.2 years
Median home value
$262,100
Median gross rent
$1,149/mo
Owner-occupied homes
67.4%
Bachelor's degree or higher
40.3%
Below poverty level
10.3%
Land area
572.7 sq mi
Population density
879 / sq mi