Jefferson County, Kansas
Jefferson County, Kansas · ZIP 66044, 66054, 66060
- Census data · ACS 2019-2023
- 18,332 (2024 estimate)Population
- 7,390Households
- $77,393Median household income
- $200,800Median home value
- 22Towns with a page
- 12ZIP codes
Jefferson County in numbersOfficial sources, refreshed yearly
| Census | Population |
|---|---|
| 2000 | 18,426 |
| 2010 | 19,126 |
| 2020 | 18,368 |
As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.
Sources: Census 2000 Summary File 1: total population, county level, state 20, retrieved November 14, 2026; Census 2010 Summary File 1: total population, county level, state 20, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, county level, state 20, retrieved November 14, 2026.
Median household income $77,393 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.
Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, county level, state 20, retrieved November 14, 2026.
- Owner occupied
- 6,282 units
- Renter occupied
- 1,108 units
- Vacancy rate
- 7.7%
Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.
Source: American Community Survey 5-year data profile 2019–2023, county level, state 20, retrieved November 14, 2026.
2,580 employees in 316 establishments with payroll in 2023, all sectors; employers themselves are not named in the source. County Business Patterns counts are published with noise.
Source: County Business Patterns 2023: employment by sector, county level, state 20, retrieved November 14, 2026.
| Measure | Jefferson County | Kansas |
|---|---|---|
| Population | 18,391 | 2,937,569 |
| Median household income | $77,393 | $72,639 |
| Median age | 43.8 | 37.2 |
| Median home value | $200,800 | $203,400 |
| Bachelor’s degree or higher | 24.6% | 35.2% |
| Foreign-born residents | 0.7% | 7.2% |
| Owner-occupied homes | 85.0% | 66.9% |
| Mean commute to work | 28.9 minutes | 19.8 minutes |
Source: American Community Survey 5-year data profile 2019–2023, county level, state 20, retrieved November 14, 2026.
Townships, towns and villages in Jefferson County22 with a page · sort by any column
| Type | |||
|---|---|---|---|
| Rock Creek Township | Township | 2,781 | 53.7 sq mi |
| Oskaloosa Township | Township | 2,155 | 57.0 sq mi |
| Delaware Township | Township | 1,792 | 87.6 sq mi |
| Fairview Township | Township | 1,660 | 27.0 sq mi |
| Union Township | Township | 1,647 | 42.1 sq mi |
| Ozawkie Township | Township | 1,646 | 37.6 sq mi |
| Kentucky Township | Township | 1,543 | 36.4 sq mi |
| Kaw Township | Township | 1,400 | 32.2 sq mi |
| Oskaloosa | City | 1,073 | 0.99 sq mi |
| Jefferson Township | Township | 1,066 | 57.8 sq mi |
| Valley Falls | City | 1,066 | 0.70 sq mi |
| Sarcoxie Township | Township | 998 | 30.7 sq mi |
| Perry | City | 846 | 0.75 sq mi |
| Norton Township | Township | 844 | 38.7 sq mi |
| McLouth | City | 838 | 0.58 sq mi |
| Rural Township | Township | 800 | 31.9 sq mi |
| Meriden | City | 719 | 0.77 sq mi |
| Ozawkie | City | 623 | 0.30 sq mi |
| Nortonville | City | 586 | 0.43 sq mi |
| Winchester | City | 443 | 0.33 sq mi |
| Grantville | Census designated place | 130 | 0.61 sq mi |
| Williamstown | Census designated place | 40 | 0.12 sq mi |
Populations: Census Population Estimates, Vintage 2024: subcounty totals, state 20 (2024). Land areas: Census Gazetteer 2025: counties. A dash means the figure is not in the cited file.
County officialsFrom public records
No county official is published yet. Names appear once a researcher drafts them from the county’s own site and a second person approves; office contacts only, never personal details.
Across Jefferson County
No job is posted in Jefferson County’s towns yet. Employers post from their business dashboard; public job banks are added once their terms are recorded.
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Neighboring counties
Neighboring counties
- Atchison CountyPopulation 16,249 (2024 estimate)
- Douglas CountyPopulation 121,989 (2024 estimate)
- Jackson CountyPopulation 13,525 (2024 estimate)
- Leavenworth CountyPopulation 84,670 (2024 estimate)
- Shawnee CountyPopulation 177,942 (2024 estimate)
Sources: Census county adjacency file 2024, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 20, retrieved November 14, 2026.