United States › Iowa › Johnston CITY · 2010 ACS
Johnston Iowa · 17,278 residents · 19.5 sq mi
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The short version
Johnston is home to 17,278 people in Iowa. The population has more than doubled since 2000, adding 8,629 people. That is roughly 83% ahead of the Iowa median. This is an unusually credentialed place: 49% of adults have a four-year degree. Median household income runs $89,453, well clear of the $52,703 US median. Owners hold 78% of the housing stock.
At a glance
Wealthier
above the US median
US median: $52,703
Mid-age
median age 36.9
US median: 37.2
More educated
49% hold a bachelor's degree
US average: 28%
Stable housing
home values roughly flat, inflation adjusted
US median home: $225,659
Section 01
Population & growth from 36.3 in 2000
US average: 37.2
Population, 1990 – 2024
3K 9K 15K 20K 26K 1990 2000 2010 2020 2024 Johnston Age distribution, 2010
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Section 02
Income & economy $89,453
−7%inflation adjusted, since 2000
from $76,094 in 2000
US average: $52,703
from $36,407 in 2000
US average: $27,286
Households earning $100K+
from 58.3% in 2009
US average: 33.3%
from 4.1% in 2000
US average: 13.8%
Workforce by industry, 2010
Public administration 17.9%
Transportation & warehousing 6.1%
Professional, scientific, technical 4%
Arts, entertainment, food 1.5%
Agriculture, forestry, fishing 1.3%
Education & health services 0.7%
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$236,700
Unchangedinflation adjusted, since 2000
from $187,400 in 2000
US average: $225,659
$934
+1%inflation adjusted, since 2000
from $727 in 2000
US average: $853
from 74.0% in 2000
22.2% rent
from 5.9% in 2009
US average: 12.1%
from 2.74 people in 2009
US average: 2.60
from 21.2% in 2009
US average: 30.9%
from 31.2% in 2009
US average: 46.8%
from 2.7 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04
Race & ethnicity 2000
White, non-Hispanic 95.3%(8,246)
Hispanic / Latino 1.5%(132)
2010
White, non-Hispanic 89.6%(15,487)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 20 more ancestry groups with data from 49.9% in 2000
US average: 27.9%
High school or higher
from 94.7% in 2000
US average: 84.9%
from 15.3% in 2000
US average: 10.2%
Section 06
Commute & transportation from 10.5 min in 2000
US average: 25.2
from 86.1% in 2009
US average: 76.2%
from 8.0% in 2009
US average: 10.4%
from 0.0% in 2009
US average: 4.7%
from 4.6% in 2009
US average: 4.1%
from 0.6% in 2009
US average: 2.8%
from 0.2% in 2009
US average: 0.5%
from 3.8% in 2009
US average: 8.7%
Section 07
Work & employment from 9.2% in 2009
US average: 12.9%
from 47.7% in 2009
US average: 35.2%
Section 08
People & community from 7.3% in 2009
US average: 12.8%
from 7.3% in 2009
US average: 9.9%
Marital status (2024)
Men 15+
Never married 24.6%(2,064)
Women 15+
Never married 26.6%(2,602)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage Showing 2024 (the nearest year with coverage data).
from 5.4% in 2013
US average: 8.4%
from 78.6% in 2020
US average: 54.8%
Direct-purchase
from 12.0% in 2020
US average: 13.8%
from 15.3% in 2020
US average: 18.4%
from 7.8% in 2020
US average: 20.9%
VA health care
from 2.9% in 2020
US average: 2.2%
Any private
from 87.9% in 2020
US average: 67.1%
Any public
from 22.8% in 2020
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2024
Gulf War (2001 or later) 19.8%(164)
Gulf War (1990s) 20.6%(171)
Share of the 830 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
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Drill deeper
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Frequently asked
How many people live in Johnston, Iowa? Johnston, Iowa has about 17,278 residents according to the 2010 American Community Survey.
What is the median household income in Johnston, Iowa? The typical household in Johnston, Iowa earns about $89,453 a year. Half of households make more than that, and half make less.
Is Johnston, Iowa expensive? In Johnston, Iowa, the median home is worth about $236,700, and the typical rent is about $934 a month.
How educated are people in Johnston, Iowa? About 48.6% of adults age 25 and over in Johnston, Iowa hold a bachelor's degree or higher.
What is the poverty rate in Johnston, Iowa? About 4.3% of people in Johnston, Iowa live below the federal poverty line.
Has Johnston, Iowa grown since 1990? Yes, Johnston, Iowa has grown since 1990. The population has added about 12,576 residents, a change of about 267 percent over that period.
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