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COUNTY

Johnson County

Iowa · 160,044 residents (2025 est.) · 613 sq mi
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Part of the Iowa City metro area
The short version

Johnson County is home to 156,639 people in Iowa. The median age is 31.0, younger than the US median of 38.9. 55% of adults hold a bachelor's degree, against 36% nationally. Few US counties rank higher on income. Growth has run 41% since 2000, or 45,633 more people. 77% were living in the same home a year earlier.

At a glance
Lower income
below the US median
US median: $82,259
Younger
median age 31.0
US median: 38.9
More educated
55% hold a bachelor's degree
US average: 36%
Less affordable
home values up 37%, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
156,639
+41%since 2000
from 111,006 in 2000
160,044 in 2025 (Census Bureau estimate)
1990 – 2025
Population density
256 / sq mi
+25%since 2009
from 205 / sq mi in 2009
US average: 281
Median age
31.0
+9%since 2000
from 28.4 in 2000
US average: 38.9
Land area
613 sq mi
Population, 1990 – 2024
90K108K126K145K163K19902000201020202024Johnson County
2024157K
1990201020202024
Age distribution, 2024
Under 55.3%(8,315)
US avg: 5.6%
5 to 95.9%(9,299)
US avg: 6%
10 to 144.8%(7,578)
US avg: 6.4%
15 to 198.9%(13,983)
US avg: 6.6%
20 to 2415.1%(23,630)
US avg: 6.5%
25 to 3414.8%(23,183)
US avg: 13.7%
35 to 4412.4%(19,497)
US avg: 13.2%
45 to 549.8%(15,408)
US avg: 12.2%
55 to 649.5%(14,912)
US avg: 12.7%
65 to 748%(12,559)
US avg: 10.2%
75 to 843.7%(5,862)
US avg: 5.1%
85 and over1.5%(2,413)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$74,935
+3%inflation adjusted, since 2000
from $40,060 in 2000
US average: $82,259
1990 – 2024
Per capita income
$45,136
+103%since 2000
from $22,220 in 2000
US average: $44,673
Households earning $100K+
50.0%
+18.1 ptssince 2009
from 31.8% in 2009
US average: 53.3%
Poverty rate
17.1%
+2.1 ptssince 2000
from 15.0% in 2000
US average: 12.5%
Income inequality (Gini)
0.498
+5%since 2010
from 0.473 in 2010
US average: 0.476
Workforce by industry, 2024
Information11.6%
US avg: 10.8%
Retail trade7.9%
US avg: 9.9%
Other services5.6%
US avg: 6.7%
Public administration4.4%
US avg: 4.8%
Finance & insurance3.6%
US avg: 5.9%
Wholesale trade3.6%
US avg: 6.9%
Professional, scientific, technical2.7%
US avg: 5.1%
Transportation & warehousing1.4%
US avg: 2.2%
Arts, entertainment, food1.4%
US avg: 1.9%
Agriculture, forestry, fishing1.3%
US avg: 1.6%
Construction1.2%
US avg: 1.2%
Education & health services0.9%
US avg: 0.9%
Manufacturing0.1%
US avg: 0.4%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Median home value
$308,600
+37%inflation adjusted, since 2000
from $123,700 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$1,122
+9%inflation adjusted, since 2000
from $564 in 2000
US average: $1,442
Owner-occupied
59.4%
+2.7 ptssince 2000
from 56.6% in 2000
40.6% rent
Vacancy rate
7.1%
Unchangedsince 2009
from 7.1% in 2009
US average: 10.0%
Persons per household
2.34 people
+1%since 2009
from 2.31 people in 2009
US average: 2.54
Owner cost-burdened
18.9%
−2.8 ptssince 2009
from 21.7% in 2009
US average: 22.9%
Renter cost-burdened
54.0%
−2.6 ptssince 2009
from 56.6% in 2009
US average: 47.4%
Afford Score
4.1
+17%since 2009
from 3.5 in 2009
2009 – 2024
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Gentrification Score
40
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04

Race & ethnicity

2000
White, non-Hispanic88.8%(98,619)
Black2.8%(3,148)
Hispanic / Latino2.5%(2,781)
Asian4.1%(4,557)
Other0%
2024
White, non-Hispanic74.8%(117,191)
Black7.6%(11,930)
Hispanic / Latino6.7%(10,554)
Asian5.6%(8,819)
Other5.2%(8,145)
Diversity Score
53
+77%since 2009
from 30 in 2009
2009 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Segregation Score
26
−3%since 2020
from 27 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins

Detailed origins & ancestry

Hispanic origin
Mexican3.9%(6,166)
Central American0.9%(1,394)
South American0.7%(1,086)
Puerto Rican0.5%(795)
Colombian0.4%(697)
Honduran0.3%(440)
Salvadoran0.3%(422)
Guatemalan0.2%(341)
Spaniard0.1%(159)
Ecuadorian0.1%(112)
Panamanian0.1%(107)
Cuban0.1%(89)
+ 7 more hispanic origin groups with data
Venezuelan0.1%(88)
Nicaraguan0.1%(84)
Chilean0%(71)
Dominican0%(70)
Bolivian0%(43)
Peruvian0%(41)
Argentine0%(34)
Asian origin
Chinese1.6%(2,526)
Asian Indian1.2%(1,909)
Vietnamese0.7%(1,059)
Korean0.7%(1,053)
Filipino0.3%(516)
Laotian0.1%(179)
Taiwanese0.1%(172)
Japanese0.1%(158)
Nepalese0.1%(157)
Hmong0.1%(132)
Uzbek0.1%(79)
+ 7 more asian origin groups with data
Thai0%(68)
Cambodian0%(31)
Pakistani0%(30)
Burmese0%(12)
Pacific Islander origin
Tongan0%(11)
Samoan0%(1)
Ancestry
German28%(43,919)
Irish14.5%(22,790)
English11.8%(18,463)
Norwegian3.8%(5,929)
Italian3.1%(4,885)
American2.9%(4,491)
Czech2.6%(4,087)
Swedish2.6%(4,043)
Polish2.2%(3,453)
Dutch1.8%(2,870)
Scottish1.7%(2,681)
+ 46 more ancestry groups with data
French1.2%(1,924)
Danish1.1%(1,792)
Arab1%(1,614)
Scotch-Irish0.7%(1,151)
Welsh0.7%(1,139)
Swiss0.6%(928)
British0.4%(619)
Russian0.4%(609)
Greek0.3%(484)
Belgian0.3%(396)
Hungarian0.2%(386)
Lithuanian0.2%(384)
Kenyan0.2%(358)
Palestinian0.2%(332)
Jordanian0.2%(324)
Lebanese0.2%(292)
West Indian0.2%(292)
Ukrainian0.2%(271)
Iranian0.2%(249)
Ghanaian0.2%(242)
Nigerian0.2%(239)
Slovak0.1%(218)
Austrian0.1%(209)
Croatian0.1%(189)
Egyptian0.1%(161)
Finnish0.1%(155)
Brazilian0.1%(150)
Serbian0.1%(138)
Jamaican0.1%(107)
Romanian0.1%(98)
Israeli0%(77)
Canadian0%(65)
Syrian0%(57)
Somali0%(53)
Turkish0%(52)
Haitian0%(52)
Iraqi0%(49)
Latvian0%(45)
Armenian0%(41)
Slovene0%(35)
Guyanese0%(27)
Ethiopian0%(11)
Section 05

Education

Bachelor's degree or higher
55.2%
+7.6 ptssince 2000
from 47.6% in 2000
US average: 35.6%
High school or higher
96.3%
+2.6 ptssince 2000
from 93.7% in 2000
US average: 89.6%
Graduate degree
24.1%
+2.7 ptssince 2000
from 21.4% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
19.4 min
+78%since 2000
from 11.0 min in 2000
US average: 26.5
Drive alone to work
65.2%
−2.3 ptssince 2009
from 67.5% in 2009
US average: 68.9%
Carpooled to work
6.3%
−4.3 ptssince 2009
from 10.5% in 2009
US average: 8.5%
Public transit
3.7%
−1.9 ptssince 2009
from 5.6% in 2009
US average: 3.2%
Worked from home
13.7%
+10.0 ptssince 2009
from 3.7% in 2009
US average: 15.0%
Walked to work
8.2%
−0.9 ptssince 2009
from 9.1% in 2009
US average: 2.4%
Biked to work
1.7%
−0.5 ptssince 2009
from 2.3% in 2009
US average: 0.4%
No vehicle available
7.1%
+0.8 ptssince 2009
from 6.4% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
3.8%
−0.8 ptssince 2011
from 4.5% in 2011
US average: 5.2%
Labor force participation
69.4%
−3.1 ptssince 2011
from 72.6% in 2011
US average: 63.5%
Women 20-64 in the labor force
80.7%
+1.0 ptssince 2020
from 79.7% in 2020
US average: 74.6%
Self-employed
19.7%
−0.8 ptssince 2009
from 20.5% in 2009
US average: 13.1%
Management & professional
49.4%
+5.5 ptssince 2009
from 43.9% in 2009
US average: 42.5%
Section 08

People & community

Male
49.7%
+0.5 ptssince 2009
from 49.2% in 2009
Female
50.3%
−0.5 ptssince 2009
from 50.8% in 2009
Foreign born
9.8%
+3.1 ptssince 2009
from 6.7% in 2009
US average: 14.1%
Veterans
3.9%
−2.6 ptssince 2009
from 6.5% in 2009
US average: 6.2%
With a disability
9.9%
+2.6 ptssince 2012
from 7.3% in 2012
US average: 13.3%
Uninsured
4.7%
−2.9 ptssince 2013
from 7.6% in 2013
US average: 8.4%
Broadband at home
89.2%
+2.7 ptssince 2017
from 86.5% in 2017
US average: 91.0%
Computer in household
97.0%
+1.5 ptssince 2020
from 95.5% in 2020
US average: 95.5%
Same house as last year
77.5%
+1.8 ptssince 2020
from 75.7% in 2020
US average: 87.7%
English only at home
85.3%
−1.1 ptssince 2016
from 86.4% in 2016
US average: 77.7%
Spanish at home
4.3%
+0.3 ptssince 2016
from 3.9% in 2016
US average: 13.6%
Marital status
Men 15+
Never married47.9%(31,002)
Married45.3%(29,307)
Widowed1.9%(1,208)
Divorced5%(3,231)
Women 15+
Never married43.3%(28,907)
Married42.4%(28,306)
Widowed4.9%(3,300)
Divorced9.3%(6,186)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09

Health coverage

Uninsured
4.7%
−2.9 ptssince 2013
from 7.6% in 2013
US average: 8.4%
Employer-based
66.1%
−1.3 ptssince 2020
from 67.4% in 2020
US average: 54.8%
Direct-purchase
18.3%
+0.6 ptssince 2020
from 17.7% in 2020
US average: 13.8%
Medicare
13.5%
+1.4 ptssince 2020
from 12.1% in 2020
US average: 18.4%
Medicaid
13.7%
+0.9 ptssince 2020
from 12.8% in 2020
US average: 20.9%
VA health care
1.4%
Unchangedsince 2020
from 1.4% in 2020
US average: 2.2%
Any private
80.5%
−1.2 ptssince 2020
from 81.7% in 2020
US average: 67.1%
Any public
26.3%
+2.0 ptssince 2020
from 24.3% 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)29.8%(1,465)
US avg: 26.4%
Gulf War (1990s)21.5%(1,060)
US avg: 24.3%
Vietnam era32.3%(1,592)
US avg: 33.1%
Korean War5.6%(274)
US avg: 4.5%
World War II2.2%(110)
US avg: 1%

Share of the 4,922 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.

BAR + DOT: THIS PLACE · TICK: US AVERAGE
Drill deeper

Places similar to Johnson County

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Pop 162,845
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Pop 167,927
Places similar to Johnson County
Head to head

Compare Johnson County to nearby counties

JOHNSON COUNTY VS
Iowa County
Income$71,223−5%
Home value$193,900−37%
Population16,504−90%
SEE FULL COMPARISON →
JOHNSON COUNTY VS
Washington County
Income$75,647+1%
Home value$203,900−34%
Population22,667−86%
SEE FULL COMPARISON →
JOHNSON COUNTY VS
Cedar County
Income$80,602+8%
Home value$211,300−32%
Population18,359−89%
SEE FULL COMPARISON →
JOHNSON COUNTY VS
Muscatine County
Income$69,396−7%
Home value$182,100−41%
Population41,853−74%
SEE FULL COMPARISON →
Frequently asked

How many people live in Johnson County, Iowa?

Johnson County, Iowa has about 156,639 residents according to the 2024 American Community Survey.

What is the median household income in Johnson County, Iowa?

The typical household in Johnson County, Iowa earns about $74,935 a year. Half of households make more than that, and half make less.

Is Johnson County, Iowa expensive?

In Johnson County, Iowa, the median home is worth about $308,600, and the typical rent is about $1,122 a month.

How educated are people in Johnson County, Iowa?

About 55.2% of adults age 25 and over in Johnson County, Iowa hold a bachelor's degree or higher.

What is the poverty rate in Johnson County, Iowa?

About 17.1% of people in Johnson County, Iowa live below the federal poverty line.

Has Johnson County, Iowa grown since 1990?

Yes, Johnson County, Iowa has grown since 1990. The population has added about 60,520 residents, a change of about 63 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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