Loading...
Johnson County, Iowa Population 2021
Johnson County, Iowa's estimated population is 152,322 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 inIowa. The 2010 Population was 131,337 and has seen a growth of 15.98% since this time.
Note: 2020 and 2021 data is projected
| Year | Population | Growth | Annual Growth Rate |
|---|---|---|---|
| 2021 | 152,322 | 591 | 0.39% |
| 2020 | 151,731 | 591 | 0.39% |
| 2019 | 151,140 | 591 | 0.39% |
| 2018 | 150,549 | 1,224 | 0.82% |
| 2017 | 149,325 | 2,397 | 1.63% |
| 2016 | 146,928 | 1,985 | 1.37% |
| 2015 | 144,943 | 2,213 | 1.55% |
| 2014 | 142,730 | 2,579 | 1.84% |
| 2013 | 140,151 | 3,048 | 2.22% |
| 2012 | 137,103 | 3,017 | 2.25% |
| 2011 | 134,086 | 2,749 | 2.09% |
| 2010 | 131,337 | 35,218 | 36.64% |
| 1990 | 96,119 | 14,402 | 17.62% |
| 1980 | 81,717 | 9,590 | 13.30% |
| 1970 | 72,127 | 18,464 | 34.41% |
| 1960 | 53,663 | 7,907 | 17.28% |
| 1950 | 45,756 | 12,565 | 37.86% |
| 1940 | 33,191 | 2,915 | 9.63% |
| 1930 | 30,276 | 3,814 | 14.41% |
| 1920 | 26,462 | 548 | 2.11% |
| 1910 | 25,914 | 1,097 | 4.42% |
| 1900 | 24,817 | 1,735 | 7.52% |
| 1890 | 23,082 | -2,347 | -9.23% |
| 1880 | 25,429 | 531 | 2.13% |
| 1870 | 24,898 | 7,325 | 41.68% |
| 1860 | 17,573 | 13,101 | 292.96% |
| 1850 | 4,472 | 2,981 | 199.93% |
| 1840 | 1,491 | 0.00% |
2021 Growth Rate
0.39% (591)
County Website
State
Founded
1837
County Seat
Lat./Long.
2010 Population
131,337
Growth Since 2010
15.98% (20,985)
| Race | Population | Percentage |
|---|---|---|
| White | 121,408 | 81.71% |
| Black or African American | 10,815 | 7.28% |
| Asian | 9,271 | 6.24% |
| Two or More Races | 3,454 | 2.32% |
| Some Other Race | 3,239 | 2.18% |
| American Indian and Alaska Native | 288 | 0.19% |
| Native Hawaiian and Other Pacific Islander | 102 | 0.07% |
Johnson County, Iowa Population Pyramid $2021
Loading...
| Type | Count | Average Size | Owned |
|---|---|---|---|
| All | 59,134 | 2.38 | 58.5 |
| Non Family | 26,739 | 1.58 | 36.3 |
| Married | 26,161 | 3.04 | 82.4 |
| Female | 4,303 | 3.01 | 53.1 |
| Male | 1,931 | 3.16 | 54.2 |
2.98
Average Family Size
2.38
Average Household Size
Loading...
Loading...
| Education Attained | Count | Percentage |
|---|---|---|
| Less Than 9th Grade | 2,204 | 2.52% |
| 9th to 12th Grade | 2,225 | 2.54% |
| High School Graduate | 14,245 | 16.27% |
| Some College | 15,183 | 17.34% |
| Associates Degree | 7,453 | 8.51% |
| Bachelors Degree | 24,275 | 27.73% |
| Graduate Degree | 21,951 | 25.08% |
Loading...
Johnson County, Iowa Educational Attainment by Race
Loading...
| Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 71,787 | 69,657 | 39,431 |
| Black | 5,171 | 4,473 | 1,043 |
| Asian | 4,976 | 4,762 | 3,838 |
| Hispanic | 4,065 | 2,740 | 1,063 |
| Other Race | 1,751 | 879 | 315 |
| 2+ Races | 1,228 | 1,185 | 771 |
| Native American | 189 | 176 | 50 |
| Islander | 63 | 57 |
The highest rate of high school graduation is among white people with a rate of 97.03%.
The highest rate of bachelors degrees is among asian people with a rate of 77.13%.
Loading...
$45,552
Average Earnings
$49,471
Average Male
$40,986
Average Female
Johnson County, Iowa Language by Age
Loading...
Johnson County, Iowa Language
84.61% of Johnson County, Iowa residents speak only English, while 15.39% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 4.43% of the population.
Johnson County, Iowa Poverty by Race
Loading...
| Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 109,989 | 16,177 | 14.71% |
| Black | 10,298 | 3,436 | 33.37% |
| Asian | 9,101 | 3,049 | 33.50% |
| Hispanic | 7,850 | 1,919 | 24.45% |
| Other | 3,185 | 1,015 | 31.87% |
| Multiple | 3,273 | 698 | 21.33% |
| Islander | 102 | 63 | 61.76% |
| Native | 256 | 19 | 7.42% |
18.10%
Overall Poverty Rate
17.92%
Male Poverty Rate
18.27%
Female Poverty Rate
Poverty in Johnson County, Iowa
The race most likely to be in poverty in Johnson County, Iowa is Islander, with 61.76% below the poverty level.
The race least likely to be in poverty in Johnson County, Iowa is Native, with 7.42% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 1.88%. Among those working part-time, it was 36.80%, and for those that did not work, the poverty rate was 28.04%.
Johnson County, Iowa Marital Status
Marriage Rates
44.6%
Overall Marriage Rate
46.0%
Male Marriage Rate
43.1%
Female Marriage Rate
Johnson County, Iowa Married by Age and Sex
Loading...
Johnson County, Iowa Marriage
The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 35-44.
Johnson County, Iowa Marital Status by Race
Loading...
| Name | Veterans | % of Total |
|---|---|---|
| White | 4,828 | 4.86% |
| Hispanic | 161 | 2.78% |
| Black | 86 | 1.21% |
| Native American | 52 | 22.03% |
| Asian | 48 | 0.63% |
| 2+ Races | 35 | 1.82% |
| Islander | 6 | 6.82% |
Johnson County, Iowa Veterans by Education
Loading...
9.87%
Veteran Poverty Rate
19.41%
Veteran Disability Rate
Loading...
71.6%
Labor Force Participation
69.1%
Employment Rate
3.5%
Unemployment Rate
Loading...
Loading...
Origin of Non-Citizens
Loading...
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Origin of Naturalized Citizens
Loading...
56.07%
Born in Johnson County, Iowa
88.05%
Native Born
11.95%
Foreign Born
8.35%
Non Citizen
3.60%
Naturalized
Place of Birth
88.05% of Johnson County, Iowa residents were born in the United States, with 56.07% having been born in Iowa. 8.35% 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