What is the population of Polk County, IA?
Polk County in Iowa has a population of 497,441, per Census ACS 5-Year estimates. The median household income is $81,621 and the median age is 36.2.
Context
Counties are the primary administrative subdivisions of states and a stable unit for tracking population. Polk County's population reflects everyone within county lines, including residents of incorporated cities and unincorporated areas.
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Polk County in Iowa has a population of 497,441, per Census ACS 5-Year estimates. The median household income is $81,621 and the median age is 36.2.