COUNTY · 1990 CENSUS

Johnson County

Kansas · 355,054 residents · 474 sq mi

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The short version

Johnson County is a county of 355,054 people in Kansas. 40% of adults hold a bachelor's degree, against 20% nationally. Households here earn about 57% more than in Kansas as a whole. Poverty is uncommon here, at 3.6% of locals. Households take in $42,741 a year at the median, 42% more than the country as a whole. There are 96,032 fewer people here than in 2000.

At a glance

Wealthier

above the US median

US median: $30,130

Mid-age

median age 32.9

US median: 33.0

More educated

40% hold a bachelor's degree

US average: 20%

More affordable

home values down 20%, inflation adjusted

US median home: $93,722

Section 01

Population & growth

Total population

355,054

−21%vs 2000

vs 451,086 in 2000

1990 – 2025

Median age

32.9

−7%vs 2000

vs 35.2 in 2000

US average: 33.0

Land area

474 sq mi

Population, 1990 – 2024

2024621K

Age distribution, 1990

Under 57.9%(27,990)

US avg: 7.3%

5 to 97.7%(27,293)

US avg: 7.3%

10 to 147.2%(25,639)

US avg: 6.9%

15 to 196.3%(22,193)

US avg: 7.1%

20 to 246%(21,207)

US avg: 7.5%

25 to 3419.1%(67,979)

US avg: 17.5%

35 to 4418.4%(65,301)

US avg: 15.1%

45 to 5410.6%(37,544)

US avg: 10.2%

55 to 647.5%(26,549)

US avg: 8.5%

65 to 745.8%(20,743)

US avg: 7.3%

75 to 842.7%(9,531)

US avg: 4%

85 and over0.9%(3,085)

US avg: 1.2%

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Section 02

Income & economy

Median household income

$42,741

−8%inflation adjusted, since 2000

vs $61,455 in 2000

US average: $30,130

1990 – 2024

Per capita income

$20,592

−33%vs 2000

vs $30,919 in 2000

US average: $14,340

Poverty rate

3.6%

+0.2 ptsvs 2000

vs 3.4% in 2000

US average: 13.2%

Section 03

Housing

Median home value

$91,200

−20%inflation adjusted, since 2000

vs $149,300 in 2000

US average: $93,722

1990 – 2024

Median gross rent

$515

−3%inflation adjusted, since 2000

vs $702 in 2000

US average: $450

Owner-occupied

69.4%

−2.9 ptsvs 2000

vs 72.3% in 2000

30.6% rent

Section 04

Race & ethnicity

2000

White, non-Hispanic89%(401,428)

Black2.6%(11,568)

Hispanic / Latino4%(17,957)

Asian2.8%(12,697)

Other0%

1990

White, non-Hispanic95.6%(339,330)

Black1.9%(6,791)

Hispanic / Latino2%(6,986)

Asian1.5%(5,440)

Other1%(3,493)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Detailed origin tables are available for 2024; showing 2024 data.

Hispanic origin

Mexican6.2%(38,316)

Central American1%(6,216)

South American0.8%(4,907)

Puerto Rican0.5%(3,056)

Guatemalan0.4%(2,247)

Honduran0.3%(1,645)

Salvadoran0.3%(1,623)

Venezuelan0.2%(1,346)

Cuban0.2%(1,304)

Spaniard0.2%(1,288)

Colombian0.2%(1,093)

Peruvian0.2%(937)

+ 10 more hispanic origin groups with data

Ecuadorian0.1%(899)

Dominican0.1%(607)

Argentine0.1%(326)

Panamanian0%(254)

Costa Rican0%(217)

Nicaraguan0%(204)

Uruguayan0%(82)

Paraguayan0%(51)

Bolivian0%(33)

Chilean0%(29)

Asian origin

Asian Indian2.2%(13,750)

Chinese0.9%(5,879)

Vietnamese0.4%(2,450)

Filipino0.3%(1,737)

Korean0.3%(1,610)

Pakistani0.2%(1,168)

Laotian0.1%(715)

Japanese0.1%(477)

Hmong0.1%(435)

Bangladeshi0.1%(425)

Taiwanese0.1%(414)

Nepalese0.1%(414)

+ 8 more asian origin groups with data

Thai0.1%(411)

Burmese0%(237)

Indonesian0%(208)

Cambodian0%(186)

Sri Lankan0%(144)

Malaysian0%(112)

Uzbek0%(37)

Kazakh0%(21)

Pacific Islander origin

Native Hawaiian0.1%(425)

Samoan0%(98)

Chamorro0%(81)

Marshallese0%(27)

Fijian0%(9)

Tongan0%(5)

Guamanian0%(4)

Ancestry

German23.7%(147,379)

English15.4%(95,717)

Irish14%(86,670)

American4.4%(27,173)

Italian3.2%(19,732)

Scottish2.2%(13,567)

French2.1%(12,787)

Swedish1.9%(12,099)

Polish1.9%(12,066)

Norwegian1.3%(8,034)

Subsaharan African1.2%(7,390)

Dutch1.2%(7,144)

+ 49 more ancestry groups with data

Scotch-Irish1%(6,171)

Welsh0.8%(4,960)

Russian0.7%(4,617)

Czech0.7%(4,362)

Arab0.6%(3,910)

Danish0.6%(3,800)

British0.5%(3,397)

Swiss0.5%(3,065)

Croatian0.5%(2,912)

Ethiopian0.4%(2,439)

Belgian0.3%(1,993)

French Canadian0.3%(1,845)

Kenyan0.3%(1,810)

Hungarian0.3%(1,785)

Ukrainian0.3%(1,691)

Austrian0.2%(1,473)

Lebanese0.2%(1,243)

Greek0.2%(1,241)

West Indian0.2%(1,150)

Iranian0.2%(1,011)

Canadian0.1%(878)

Lithuanian0.1%(857)

Portuguese0.1%(683)

Brazilian0.1%(657)

Finnish0.1%(641)

Slovak0.1%(606)

Slovene0.1%(565)

Nigerian0.1%(523)

Romanian0.1%(474)

Jamaican0.1%(459)

Jordanian0.1%(414)

Haitian0.1%(372)

Serbian0.1%(341)

Palestinian0.1%(316)

Turkish0%(291)

Iraqi0%(250)

Ghanaian0%(235)

Armenian0%(211)

Egyptian0%(196)

Latvian0%(135)

Israeli0%(127)

Syrian0%(121)

Moroccan0%(102)

Bulgarian0%(94)

Australian0%(88)

Trinidadian & Tobagonian0%(64)

Guyanese0%(38)

Macedonian0%(16)

Somali0%(5)

RANKED:Largest German population · Largest English population · Largest Irish population · Largest Mexican population · Largest American population

Section 05

Education

Bachelor's degree or higher

40.5%

−7.3 ptsvs 2000

vs 47.7% in 2000

US average: 20.3%

High school or higher

92.9%

−2.1 ptsvs 2000

vs 94.9% in 2000

US average: 75.2%

Graduate degree

12.4%

−3.6 ptsvs 2000

vs 16.0% in 2000

US average: 7.1%

Section 06

Commute & transportation

Average commute

19.6 min

+64%vs 2000

vs 12.0 min in 2000

US average: 21.9

Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status (2024)

Men 15+

Never married31.5%(77,454)

Married58.9%(145,001)

Widowed1.9%(4,702)

Divorced7.8%(19,103)

Women 15+

Never married25.9%(66,165)

Married56.2%(143,353)

Widowed6.4%(16,308)

Divorced11.5%(29,391)

SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024

Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

Uninsured

4.9%

−3.9 ptssince 2013

from 8.8% in 2013

US average: 8.4%

Employer-based

70.8%

Unchangedsince 2020

from 70.8% in 2020

US average: 54.8%

Direct-purchase

15.4%

−0.3 ptssince 2020

from 15.7% in 2020

US average: 13.8%

Medicare

15.9%

+1.2 ptssince 2020

from 14.7% in 2020

US average: 18.4%

Medicaid

6.7%

+0.6 ptssince 2020

from 6.1% in 2020

US average: 20.9%

VA health care

1.5%

+0.1 ptssince 2020

from 1.4% in 2020

US average: 2.2%

Any private

83.7%

−0.8 ptssince 2020

from 84.5% in 2020

US average: 67.1%

Any public

21.7%

+1.4 ptssince 2020

from 20.3% 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)23.7%(5,950)

US avg: 26.4%

Gulf War (1990s)25.5%(6,391)

US avg: 24.3%

Vietnam era34.9%(8,761)

US avg: 33.1%

Korean War6.5%(1,633)

US avg: 4.5%

World War II0.9%(224)

US avg: 1%

Share of the 25,069 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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