Johnson County, Iowa Population 2022
Johnson County, Iowa's estimated population is 152,913 with a growth rate of 0.39% in the past year according to the most recent United States census data. Johnson County, Iowa is the 5th largest county in Iowa. The 2010 Population was 131,337 and has seen a growth of 16.43% since this time.
| Year | Population | Growth | Annual Growth Rate |
|---|---|---|---|
| 1840 | 1,491 | 0.00% | |
| 1850 | 4,472 | 2,981 | 199.93% |
| 1860 | 17,573 | 13,101 | 292.96% |
| 1870 | 24,898 | 7,325 | 41.68% |
| 1880 | 25,429 | 531 | 2.13% |
| 1890 | 23,082 | -2,347 | -9.23% |
| 1900 | 24,817 | 1,735 | 7.52% |
| 1910 | 25,914 | 1,097 | 4.42% |
| 1920 | 26,462 | 548 | 2.11% |
| 1930 | 30,276 | 3,814 | 14.41% |
| 1940 | 33,191 | 2,915 | 9.63% |
| 1950 | 45,756 | 12,565 | 37.86% |
| 1960 | 53,663 | 7,907 | 17.28% |
| 1970 | 72,127 | 18,464 | 34.41% |
| 1980 | 81,717 | 9,590 | 13.30% |
| 1990 | 96,119 | 14,402 | 17.62% |
| 2010 | 131,337 | 35,218 | 36.64% |
| 2011 | 134,086 | 2,749 | 2.09% |
| 2012 | 137,103 | 3,017 | 2.25% |
| 2013 | 140,151 | 3,048 | 2.22% |
| 2014 | 142,730 | 2,579 | 1.84% |
| 2015 | 144,943 | 2,213 | 1.55% |
| 2016 | 146,928 | 1,985 | 1.37% |
| 2017 | 149,325 | 2,397 | 1.63% |
| 2018 | 150,549 | 1,224 | 0.82% |
| 2019 | 151,140 | 591 | 0.39% |
| 2020 | 151,731 | 591 | 0.39% |
| 2021 | 152,322 | 591 | 0.39% |
| 2022 | 152,913 | 591 | 0.39% |
Population by Race
| Race | Population | Percentage |
|---|---|---|
| White | 121,694 | 80.69% |
| Black or African American | 11,509 | 7.63% |
| American Indian and Alaska Native | 271 | 0.18% |
| Asian | 9,346 | 6.20% |
| Native Hawaiian and Other Pacific Islander | 74 | 0.05% |
| Some Other Race | 2,510 | 1.66% |
| Two or More Races | 5,415 | 3.59% |
Johnson County, Iowa Population Pyramid 2022
| Type | Count | Average Size | Owned |
|---|---|---|---|
| All | 60,430 | 2.37 | 58.6 |
| Married | 26,945 | 3.03 | 83.1 |
| Male | 1,454 | 3.22 | 66 |
| Female | 4,301 | 2.98 | 52.6 |
| Non Family | 27,730 | 1.59 | 35.4 |
2.97
Average Family Size
2.37
Average Household Size
| Education Attained | Count | Percentage |
|---|---|---|
| Less Than 9th Grade | 1,782 | 2.00% |
| 9th to 12th Grade | 2,031 | 2.27% |
| High School Graduate | 14,100 | 15.79% |
| Some College | 15,346 | 17.19% |
| Associates Degree | 7,539 | 8.44% |
| Bachelors Degree | 25,952 | 29.06% |
| Graduate Degree | 22,542 | 25.25% |
Johnson County, Iowa Educational Attainment by Race
| Race | Total | High School | Bachelors |
|---|---|---|---|
| Asian | 5,002 | 4,902 | 3,866 |
| White | 72,423 | 70,460 | 40,819 |
| 2+ Races | 2,217 | 2,079 | 1,227 |
| Native American | 186 | 177 | 98 |
| Hispanic | 4,223 | 3,221 | 1,404 |
| Other Race | 1,442 | 834 | 406 |
| Black | 5,692 | 5,098 | 1,287 |
| Islander | 57 | 50 |
The highest rate of high school graduation is among asian people with a rate of 98.00%.
The highest rate of bachelors degrees is among asian people with a rate of 77.29%.
$46,081
Average Earnings
$51,473
Average Male
$40,196
Average Female
Johnson County, Iowa Language by Age
Johnson County, Iowa Language
84.60% of Johnson County, Iowa residents speak only English, while 15.40% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 4.23% of the population.
Johnson County, Iowa Poverty by Race
| Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| Islander | 74 | 50 | 67.57% |
| Asian | 9,105 | 2,764 | 30.36% |
| Black | 10,851 | 2,918 | 26.89% |
| Hispanic | 8,048 | 1,440 | 17.89% |
| White | 110,913 | 16,776 | 15.13% |
| Other | 371 | NaN% | |
| Multiple | 5,167 | 762 | 14.75% |
17.20%
Overall Poverty Rate
16.91%
Male Poverty Rate
17.49%
Female Poverty Rate
Poverty in Johnson County, Iowa
The race most likely to be in poverty in Johnson County, Iowa is Islander, with 67.57% below the poverty level.
The race least likely to be in poverty in Johnson County, Iowa is Multiple, with 14.75% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 1.82%. Among those working part-time, it was 35.05%, and for those that did not work, the poverty rate was 27.02%.
Johnson County, Iowa Marital Status
Marriage Rates
45.1%
Overall Marriage Rate
45.8%
Male Marriage Rate
44.5%
Female Marriage Rate
Johnson County, Iowa Married by Age and Sex
Johnson 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.
Johnson County, Iowa Marital Status by Race
| Name | Veterans | % of Total |
|---|---|---|
| White | 4,778 | 4.78% |
| Black | 113 | 1.45% |
| Native American | 10 | 4.48% |
| Asian | 51 | 0.66% |
| Islander | 7 | 12.28% |
| 2+ Races | 47 | 1.59% |
| Hispanic | 154 | 2.56% |
Johnson County, Iowa Veterans by Education
8.90%
Veteran Poverty Rate
18.35%
Veteran Disability Rate
70.1%
Labor Force Participation
67.4%
Employment Rate
3.7%
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
56.00%
Born in Johnson County, Iowa
88.44%
Native Born
11.56%
Foreign Born
7.98%
Non Citizen
3.58%
Naturalized
Place of Birth
88.44% of Johnson County, Iowa residents were born in the United States, with 56.00% having been born in Iowa. 7.98% 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