CensusEasy
COUNTY · 2000 CENSUS

Jefferson County

Kansas · 18,426 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 $45,535. Population has grown 16% since 1990. Median home value has more than doubled since 1990, reaching $86,900.

At a glance
Wealthier
above the US median
US median: $42,589
Older
median age 38.0
US median: 35.2
Less educated
18% hold a bachelor's degree
US average: 24%
Less affordable
home values up 39%, inflation adjusted
US median home: $120,530
Section 01

Population & growth

Total population
18,426
+16%since 1990
from 15,905 in 1990
1990 – 2025
Median age
38.0
+8%since 1990
from 35.2 in 1990
US average: 35.2
Population, 1990 – 2024
16K17K18K18K19K1990201020202024Jefferson County
202418K
1990201020202024
Age distribution, 2000
Under 56.4%(1,178)
US avg: 6.8%
5 to 97.2%(1,329)
US avg: 7.3%
10 to 148.4%(1,544)
US avg: 7.3%
15 to 198.1%(1,498)
US avg: 7.2%
20 to 244.2%(779)
US avg: 6.7%
25 to 3410.8%(1,997)
US avg: 14.2%
35 to 4417.1%(3,155)
US avg: 16%
45 to 5414.7%(2,708)
US avg: 13.4%
55 to 6410.2%(1,880)
US avg: 8.6%
65 to 746.6%(1,224)
US avg: 6.5%
75 to 844.4%(811)
US avg: 4.4%
85 and over1.8%(323)
US avg: 1.5%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$45,535
+19%inflation adjusted, since 1990
from $29,048 in 1990
US average: $42,589
1990 – 2024
Per capita income
$19,373
+58%since 1990
from $12,267 in 1990
US average: $21,522
Poverty rate
6.7%
−1.9 ptssince 1990
from 8.6% in 1990
US average: 12.4%
Section 03

Housing

Median home value
$86,900
+39%inflation adjusted, since 1990
from $47,600 in 1990
US average: $120,530
1990 – 2024
Median gross rent
$447
+4%inflation adjusted, since 1990
from $327 in 1990
US average: $602
Owner-occupied
84.8%
+0.9 ptssince 1990
from 83.9% in 1990
15.2% rent
RELATED:See current rent listings in Jefferson County on RentDataNow
Section 04

Race & ethnicity

1990
White, non-Hispanic98%(15,592)
Black0.4%(65)
Hispanic / Latino1.4%(218)
Asian0.2%(35)
2000
White, non-Hispanic96%(17,683)
Black0.4%(65)
Hispanic / Latino1.3%(236)
Asian0.2%(30)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

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

Hispanic origin
Mexican3.2%(586)
Puerto Rican0.1%(13)
Asian origin
Cambodian0.1%(21)
Filipino0.1%(13)
Chinese0%(7)
Laotian0%(3)
Pacific Islander origin
Guamanian0.1%(24)
Ancestry
German29.3%(5,369)
English14.3%(2,629)
Irish13.6%(2,491)
American7.2%(1,320)
Scottish2.5%(451)
Italian2.3%(414)
Swedish2%(371)
Polish1.7%(307)
Dutch1.4%(266)
Scotch-Irish1.4%(265)
French1.4%(258)
Norwegian0.9%(171)
+ 23 more ancestry groups with data
Czech0.7%(132)
Danish0.5%(92)
Welsh0.4%(76)
Croatian0.3%(58)
Swiss0.3%(55)
Russian0.3%(53)
British0.2%(40)
Iranian0.2%(38)
Greek0.2%(28)
Austrian0.1%(22)
Canadian0.1%(22)
Slovene0.1%(17)
Lithuanian0.1%(13)
Arab0%(6)
Belgian0%(6)
Turkish0%(4)
Haitian0%(2)
Finnish0%(1)
RANKED:Largest German population · Largest English population · Largest Irish population · Largest American population · Largest Mexican population
Section 05

Education

Bachelor's degree or higher
17.9%
+4.4 ptssince 1990
from 13.5% in 1990
US average: 24.4%
High school or higher
88.9%
+7.8 ptssince 1990
from 81.0% in 1990
US average: 80.3%
Graduate degree
6.0%
+1.4 ptssince 1990
from 4.6% in 1990
US average: 8.8%
Section 06

Commute & transportation

Average commute
21.0 min
−27%since 1990
from 29.0 min in 1990
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status
Men 15+
Never married21.6%(1,545)
Married66.9%(4,795)
Widowed2%(145)
Divorced9.5%(682)
Women 15+
Never married14.9%(1,076)
Married66.2%(4,776)
Widowed8.8%(634)
Divorced10.1%(731)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
Drill deeper

Places similar to Jefferson County

Gunnison County
Pop 17,439
Douglas County
Pop 19,880
Bethel Census Area
Pop 18,391
Inyo County
Pop 18,158
Places similar to Jefferson County
Head to head

Compare Jefferson County to nearby counties

JEFFERSON COUNTY VS
Leavenworth County
Income$89,218+96%
Home value$282,900+226%
Population84,590+362%
SEE FULL COMPARISON →
JEFFERSON COUNTY VS
Atchison County
Income$61,112+34%
Home value$145,700+68%
Population16,172−12%
SEE FULL COMPARISON →
JEFFERSON COUNTY VS
Douglas County
Income$69,746+53%
Home value$309,400+256%
Population120,920+561%
SEE FULL COMPARISON →
JEFFERSON COUNTY VS
Shawnee County
Income$67,104+47%
Home value$180,900+108%
Population178,607+876%
SEE FULL COMPARISON →
Frequently asked

How many people live in Jefferson County, Kansas?

Jefferson County, Kansas has about 18,426 residents according to the 2000 Census.

What is the median household income in Jefferson County, Kansas?

The typical household in Jefferson County, Kansas earns about $45,535 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 $86,900, and the typical rent is about $447 a month.

How educated are people in Jefferson County, Kansas?

About 17.9% 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 2,521 residents, a change of about 16 percent over that period.

Keep going

Explore from here

4 census tracts
Census Tract 201.01Census Tract 203Census Tract 202Census Tract 201.02
9 ZIP codes
ZIP 66512ZIP 66054ZIP 66088ZIP 66066ZIP 66073ZIP 66070ZIP 66060ZIP 66097ZIP 66429
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →