United States › Kansas › Jefferson County COUNTY · 2000 CENSUS
Jefferson County Kansas · 18,426 residents · 533 sq mi
Time machine
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The short version
Jefferson County is home to 18,426 people in Kansas. 85% of homes are owner-occupied. About 18% of adults have finished a four-year degree. The poverty rate is 6.7%, under the national 12.4%. The typical home is worth $86,900, having more than doubled since 1990. Growth has run 16% since 1990, or 2,521 more people.
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 from 35.2 in 1990
US average: 35.2
Population, 1990 – 2024
16K 17K 18K 18K 19K 1990 2000 2010 2020 2024 Jefferson County Age distribution, 2000
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $45,535
+19%inflation adjusted, since 1990
from $29,048 in 1990
US average: $42,589
from $12,267 in 1990
US average: $21,522
from 8.6% in 1990
US average: 12.4%
$86,900
+39%inflation adjusted, since 1990
from $47,600 in 1990
US average: $120,530
$447
+4%inflation adjusted, since 1990
from $327 in 1990
US average: $602
from 83.9% in 1990
15.2% rent
Section 04
Race & ethnicity 1990
White, non-Hispanic 98%(15,592)
Hispanic / Latino 1.4%(218)
2000
White, non-Hispanic 96%(17,683)
Hispanic / Latino 1.3%(236)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry Detailed origin tables are available for 2024; showing 2024 data.
Ancestry
+ 23 more ancestry groups with data from 13.5% in 1990
US average: 24.4%
High school or higher
from 81.0% in 1990
US average: 80.3%
from 4.6% in 1990
US average: 8.8%
Section 06
Commute & transportation 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 married 21.6%(1,545)
Women 15+
Never married 14.9%(1,076)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
Section 09
Health coverage Showing 2024 (the nearest year with coverage data).
from 8.9% in 2013
US average: 8.4%
from 67.8% in 2020
US average: 54.8%
Direct-purchase
from 18.6% in 2020
US average: 13.8%
from 20.0% in 2020
US average: 18.4%
from 10.5% in 2020
US average: 20.9%
VA health care
from 3.7% in 2020
US average: 2.2%
Any private
from 81.5% in 2020
US average: 67.1%
Any public
from 29.9% 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%(258)
Gulf War (1990s) 14.1%(158)
Share of the 1,120 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 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%
Population 84,590 +362%
SEE FULL COMPARISON →
JEFFERSON COUNTY VS
Atchison County
Income $61,112 +34%
Home value $145,700 +68%
Population 16,172 −12%
SEE FULL COMPARISON →
JEFFERSON COUNTY VS
Douglas County
Income $69,746 +53%
Home value $309,400 +256%
Population 120,920 +561%
SEE FULL COMPARISON →
JEFFERSON COUNTY VS
Shawnee County
Income $67,104 +47%
Home value $180,900 +108%
Population 178,607 +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.
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