Polk County, Iowa Population 2022
Polk County, Iowa's estimated population is 503,145 with a growth rate of 0.87% in the past year according to the most recent United States census data. Polk County, Iowa is the 2nd largest county in Iowa. The 2010 Population was 432,352 and has seen a growth of 16.37% since this time.
| Year | Population | Growth | Annual Growth Rate |
|---|---|---|---|
| 1850 | 4,513 | 0.00% | |
| 1860 | 11,625 | 7,112 | 157.59% |
| 1870 | 27,857 | 16,232 | 139.63% |
| 1880 | 42,395 | 14,538 | 52.19% |
| 1890 | 65,410 | 23,015 | 54.29% |
| 1900 | 82,624 | 17,214 | 26.32% |
| 1910 | 110,438 | 27,814 | 33.66% |
| 1920 | 154,029 | 43,591 | 39.47% |
| 1930 | 172,837 | 18,808 | 12.21% |
| 1940 | 195,835 | 22,998 | 13.31% |
| 1950 | 226,010 | 30,175 | 15.41% |
| 1960 | 266,315 | 40,305 | 17.83% |
| 1970 | 286,101 | 19,786 | 7.43% |
| 1980 | 303,170 | 17,069 | 5.97% |
| 1990 | 327,140 | 23,970 | 7.91% |
| 2010 | 432,352 | 105,212 | 32.16% |
| 2011 | 438,737 | 6,385 | 1.48% |
| 2012 | 444,671 | 5,934 | 1.35% |
| 2013 | 452,657 | 7,986 | 1.80% |
| 2014 | 460,898 | 8,241 | 1.82% |
| 2015 | 467,304 | 6,406 | 1.39% |
| 2016 | 474,277 | 6,973 | 1.49% |
| 2017 | 480,487 | 6,210 | 1.31% |
| 2018 | 485,833 | 5,346 | 1.11% |
| 2019 | 490,161 | 4,328 | 0.89% |
| 2020 | 494,489 | 4,328 | 0.88% |
| 2021 | 498,817 | 4,328 | 0.88% |
| 2022 | 503,145 | 4,328 | 0.87% |
Population by Race
| Race | Population | Percentage |
|---|---|---|
| White | 400,882 | 82.58% |
| Black or African American | 33,808 | 6.96% |
| American Indian and Alaska Native | 1,180 | 0.24% |
| Asian | 23,235 | 4.79% |
| Native Hawaiian and Other Pacific Islander | 417 | 0.09% |
| Some Other Race | 8,538 | 1.76% |
| Two or More Races | 17,358 | 3.58% |
Polk County, Iowa Population Pyramid 2022
| Type | Count | Average Size | Owned |
|---|---|---|---|
| All | 191,125 | 2.49 | 67.1 |
| Married | 87,146 | 3.19 | 86 |
| Male | 8,408 | 3.28 | 67.8 |
| Female | 21,566 | 3.5 | 50.1 |
| Non Family | 74,005 | 1.3 | 49.6 |
3.15
Average Family Size
2.49
Average Household Size
| Education Attained | Count | Percentage |
|---|---|---|
| Less Than 9th Grade | 11,865 | 3.68% |
| 9th to 12th Grade | 13,562 | 4.20% |
| High School Graduate | 79,884 | 24.77% |
| Some College | 63,712 | 19.75% |
| Associates Degree | 32,365 | 10.03% |
| Bachelors Degree | 83,767 | 25.97% |
| Graduate Degree | 37,409 | 11.60% |
Polk County, Iowa Educational Attainment by Race
| Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 265,329 | 254,473 | 107,946 |
| Islander | 283 | 210 | 112 |
| Asian | 14,740 | 10,535 | 5,294 |
| 2+ Races | 5,877 | 4,863 | 1,926 |
| Black | 18,267 | 15,394 | 3,578 |
| Native American | 704 | 622 | 104 |
| Hispanic | 19,551 | 12,410 | 2,563 |
| Other Race | 4,252 | 2,336 | 422 |
The highest rate of high school graduation is among white people with a rate of 95.91%.
The highest rate of bachelors degrees is among white people with a rate of 40.68%.
$45,900
Average Earnings
$52,453
Average Male
$38,973
Average Female
Polk County, Iowa Language by Age
Polk County, Iowa Language
86.58% of Polk County, Iowa residents speak only English, while 13.42% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 5.71% of the population.
Polk County, Iowa Poverty by Race
| Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| Black | 32,852 | 9,078 | 27.63% |
| Islander | 417 | 105 | 25.18% |
| Multiple | 17,077 | 3,979 | 23.30% |
| Hispanic | 40,673 | 8,496 | 20.89% |
| Native | 1,096 | 168 | 15.33% |
| Asian | 23,073 | 2,476 | 10.73% |
| White | 367,012 | 26,630 | 7.26% |
| Other | 2,036 | NaN% |
10.36%
Overall Poverty Rate
9.29%
Male Poverty Rate
11.39%
Female Poverty Rate
Poverty in Polk County, Iowa
The race most likely to be in poverty in Polk County, Iowa is Black, with 27.63% below the poverty level.
The race least likely to be in poverty in Polk County, Iowa is Other, with NaN% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 2.08%. Among those working part-time, it was 14.92%, and for those that did not work, the poverty rate was 19.01%.
Polk County, Iowa Marital Status
Marriage Rates
48.4%
Overall Marriage Rate
49.8%
Male Marriage Rate
47.0%
Female Marriage Rate
Polk County, Iowa Married by Age and Sex
Polk County, Iowa Marriage
The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.
Polk County, Iowa Marital Status by Race
| Name | Veterans | % of Total |
|---|---|---|
| White | 21,599 | 6.96% |
| Black | 847 | 3.89% |
| Native American | 149 | 16.48% |
| Asian | 204 | 1.19% |
| Islander | 36 | 12.72% |
| Other Race | 109 | 2.10% |
| 2+ Races | 239 | 2.84% |
| Hispanic | 548 | 2.25% |
Polk County, Iowa Veterans by Education
6.85%
Veteran Poverty Rate
26.96%
Veteran Disability Rate
71.7%
Labor Force Participation
68.2%
Employment Rate
4.6%
Unemployment Rate
Origin of Non-Citizens
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Origin of Naturalized Citizens
68.20%
Born in Polk County, Iowa
90.91%
Native Born
9.09%
Foreign Born
5.05%
Non Citizen
4.04%
Naturalized
Place of Birth
90.91% of Polk County, Iowa residents were born in the United States, with 68.20% having been born in Iowa. 5.05% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.
- US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
- Population of States and Counties of the United States: 1790 - 1990