Polk County, IA — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
497,441
Male
247,187
49.7%
Female
250,254
50.3%
Median Age
36.2 yrs
Avg Household Size
2.4
Foreign Born
9.9%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher26.4%
High School or Higher42.5%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
4.5%
Disability
0.0%
Non-English Home
5.0%
Married
40.0%
Polk County, IA has a population of 497,441 according to 2023 Census Bureau estimates. The median age is 36.2 years. The largest racial or ethnic group is White at 77.8% of the population. 26.4% of residents hold a bachelor's degree or higher. 9.9% of residents are foreign-born.