Jefferson County, Kansas
Population estimates, July 1, 2025, (V2025) 18,296
People
Population
Population estimates, July 1, 2025, (V2025) 18,296
Population estimates, July 1, 2024, (V2024) 18,332
Population estimates base, April 1, 2020, (V2025) 18,368
Population estimates base, April 1, 2020, (V2024) 18,362
Population, percent change - April 1, 2020 (estimates base) to July 1, 2025, (V2025) -0.4%
Population, percent change - April 1, 2020 (estimates base) to July 1, 2024, (V2024) -0.2%
Population, Census, April 1, 2020 18,368
Population, Census, April 1, 2010 19,126
Age and Sex
Persons under 5 years, percent 5.1%
Persons under 18 years, percent 21.4%
Persons 65 years and over, percent 21.5%
Female persons, percent 49.0%
Race and Hispanic Origin
White alone, percent 95.0%
Black alone, percent(a) 1.0%
American Indian and Alaska Native alone, percent(a) 1.2%
Asian alone, percent(a) 0.4%
Native Hawaiian and Other Pacific Islander alone, percent(a) 0.1%
Two or More Races, percent 2.3%
Hispanic or Latino, percent(b) 3.8%
White alone, not Hispanic or Latino, percent 91.9%
Population Characteristics
Veterans, 2020-2024 1,120
Foreign-born persons, percent, 2020-2024 1.0%
Housing
Housing Units, July 1, 2025, (V2025) 8,225
Owner-occupied housing unit rate, 2020-2024 85.7%
Median value of owner-occupied housing units, 2020-2024 $216,900
Median selected monthly owner costs - with a mortgage, 2020-2024 $1,663
Median selected monthly owner costs - without a mortage, 2020-2024 $659
Median gross rent, 2020-2024 $835
Building Permits, 2025 80
Families & Living Arrangements
Households, 2020-2024 7,412
Persons per household, 2020-2024 2.45
Living in the same house 1 year ago, percent of persons age 1 year+ , 2020-2024 91.9%
Language other than English spoken at home, percent of persons age 5 years+, 2020-2024 2.0%
Computer and Internet Use
Households with a computer, percent, 2020-2024 94.4%
Households with a broadband Internet subscription, percent, 2020-2024 89.2%
Education
High school graduate or higher, percent of persons age 25 years+, 2020-2024 94.4%
Bachelor's degree or higher, percent of persons age 25 years+, 2020-2024 24.6%
Health
With a disability, under age 65 years, percent, 2020-2024 7.9%
Persons without health insurance, under age 65 years, percent 7.9%
Economy
In civilian labor force, total, percent of population age 16 years+, 2020-2024 64.6%
In civilian labor force, female, percent of population age 16 years+, 2020-2024 61.3%
Total accommodation and food services sales, 2022 ($1,000)(c) D
Total health care and social assistance receipts/revenue, 2022 ($1,000)(c) 29,888
Total transportation and warehousing receipts/revenue, 2022 ($1,000)(c) D
Total retail sales, 2022 ($1,000)(c) 85,954
Total retail sales per capita, 2022(c) $4,683
Transportation
Mean travel time to work (minutes), workers age 16 years+, 2020-2024 30.1
Income & Poverty
Median households income (in 2024 dollars), 2020-2024 $81,278
Per capita income in past 12 months (in 2024 dollars), 2020-2024 $41,568
Persons in poverty, percent 7.1%
Businesses
Businesses
Total employer establishments, 2023 316
Total employment, 2023 2,580
Total annual payroll, 2023 ($1,000) 132,947
Total employment, percent change, 2022-2023 2.1%
Total nonemployer establishments, 2023 1,298
All employer firms, Reference year 2023 415
Male-owned employer firms, Reference year 2023 S
Female-owned employer firms, Reference year 2023 S
Minority-owned employer firms, Reference year 2023 S
Nonminority-owned employer firms, Reference year 2023 S
Veteran-owned employer firms, Reference year 2023 S
Nonveteran-owned employer firms, Reference year 2023 275
Geography
Geography
Population per square mile, 2020 34.5
Population per square mile, 2010 35.9
Land area in square miles, 2020 532.63
Land area in square miles, 2010 532.57
FIPS Code 20087