COUNTY · 2020 ACS
Jefferson County
Kansas · 18,368 residents · 532.626 sq mi
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The short version
Jefferson County has roughly average household income, with a median household income of $67,429. Population has held roughly steady since 2000. Median home value has more than doubled since 2000, reaching $163,400.
At a glance
Average income
near the US median
US median: $66,278
Older
median age 43.7
US median: 38.8
Less educated
25% hold a bachelor's degree
US average: 33%
Less affordable
home values up 25%, inflation adjusted
US median home: $265,253
Section 01
Population & growth
Population, 1990 – 2024
202418K
Age distribution, 2020
Under 55.4%(998)
5 to 96.5%(1,193)
10 to 146.9%(1,274)
15 to 196.4%(1,173)
20 to 244.2%(769)
25 to 3410%(1,839)
35 to 4411.8%(2,170)
45 to 5412.6%(2,311)
55 to 6416.3%(2,998)
65 to 7412.2%(2,248)
75 to 845.7%(1,049)
85 and over1.9%(346)
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy
$67,429
−1%inflation adjusted, since 2000
from $45,535 in 2000
US average: $66,278
1990 – 2024
Households earning $100K+
45.7%
+15.2 ptssince 2009
from 30.5% in 2009
US average: 43.9%
Workforce by industry, 2020
Wholesale trade11.8%
Retail trade10.2%
Information8.9%
Finance & insurance7.2%
Other services5.9%
Professional, scientific, technical4.8%
Public administration4.7%
Agriculture, forestry, fishing3.1%
Construction3.1%
Education & health services2.3%
Transportation & warehousing2%
Arts, entertainment, food1.7%
Manufacturing0.1%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03
Housing
$163,400
+25%inflation adjusted, since 2000
from $86,900 in 2000
US average: $265,253
1990 – 2024
2.4
+6%since 2009
from 2.3 in 2009
2009 – 2024
Our index: median home value divided by median household income. Lower is more affordable.
RELATED:See current rent listings in Jefferson County on RentDataNow
Section 04
Race & ethnicity
2000
White, non-Hispanic96%(17,683)
Black0.4%(65)
Hispanic / Latino1.3%(236)
Asian0.2%(30)
Other0%
2020
White, non-Hispanic90.1%(16,549)
Black0.5%(99)
Hispanic / Latino3.1%(567)
Asian0.2%(41)
Other3%(556)
7
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
Mexican1.9%(365)
Cuban0.5%(104)
Puerto Rican0.2%(30)
South American0.1%(26)
Peruvian0.1%(26)
Spaniard0.1%(10)
Pacific Islander origin
Samoan0.1%(14)
Ancestry
German34.8%(6,610)
English14.9%(2,820)
Irish14%(2,652)
American6.6%(1,250)
French3.7%(697)
Swedish2.7%(513)
Scottish2.1%(400)
Dutch1.9%(368)
Italian1.4%(271)
Welsh1.4%(262)
Czech1.1%(217)
Polish1.1%(205)
+ 21 more ancestry groups with data
Norwegian1%(196)
Danish0.9%(176)
Swiss0.8%(154)
Scotch-Irish0.8%(145)
British0.6%(111)
Croatian0.5%(90)
French Canadian0.5%(86)
Austrian0.3%(48)
Russian0.2%(44)
Belgian0.2%(40)
Subsaharan African0.1%(21)
Nigerian0.1%(20)
Ukrainian0.1%(20)
Hungarian0.1%(17)
Lithuanian0.1%(11)
Australian0%(9)
Slovene0%(8)
Slovak0%(5)
Portuguese0%(3)
Finnish0%(2)
West Indian0%(1)
Section 05
Education
High school or higher
93.9%
+5.0 ptssince 2000
from 88.9% in 2000
US average: 88.5%
Section 06
Commute & transportation
Section 07
Work & employment
Section 08
People & community
Marital status (2024)
Men 15+
Never married25.2%(1,935)
Married60.6%(4,641)
Widowed2.7%(205)
Divorced11.5%(883)
Women 15+
Never married18.4%(1,376)
Married59.2%(4,433)
Widowed10.8%(811)
Divorced11.6%(867)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Drill deeper
Places similar to Jefferson County
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Pop 17,439
Douglas County
Pop 19,880
Bethel Census Area
Pop 18,391
Inyo County
Pop 18,158
Places similar to Jefferson CountyHead to head
Compare Jefferson County to nearby counties
JEFFERSON COUNTY VS
Leavenworth County
Income$89,218+32%
Home value$282,900+73%
Population84,590+362%
SEE FULL COMPARISON →
JEFFERSON COUNTY VS
Atchison County
Income$61,112−9%
Home value$145,700−11%
Population16,172−12%
SEE FULL COMPARISON →
JEFFERSON COUNTY VS
Douglas County
Income$69,746+3%
Home value$309,400+89%
Population120,920+561%
SEE FULL COMPARISON →
JEFFERSON COUNTY VS
Shawnee County
Income$67,104same
Home value$180,900+11%
Population178,607+876%
SEE FULL COMPARISON →
Frequently asked
How many people live in Jefferson County, Kansas?
Jefferson County, Kansas has about 18,368 residents according to the 2020 American Community Survey.
What is the median household income in Jefferson County, Kansas?
The typical household in Jefferson County, Kansas earns about $67,429 a year. Half of households make more than that, and half make less.
Is Jefferson County, Kansas expensive?
In Jefferson County, Kansas, the median home is worth about $163,400, and the typical rent is about $759 a month.
How educated are people in Jefferson County, Kansas?
About 24.5% of adults age 25 and over in Jefferson County, Kansas hold a bachelor's degree or higher.
What is the poverty rate in Jefferson County, Kansas?
About 6.7% of people in Jefferson County, Kansas live below the federal poverty line.
Has Jefferson County, Kansas grown since 1990?
Yes, Jefferson County, Kansas has grown since 1990. The population has added about 2,463 residents, a change of about 15 percent over that period.
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024