Jump to Navigation

Kansas Counties

Jefferson County, Kansas

Date Established: August 25, 1855
Date Organized:
Location: Kansas map showing location of Jefferson County
County Seat: Oskaloosa
Origin of Name: In honor of Thomas Jefferson (1743-1826), the author of the Declaration of Independence and the third president of the United States.
Cities & Townships
PlacePopulation (2010 census)
Delaware Township  1,939 
Fairview Township  1,699 
Jefferson Township  1,160 
Kaw Township  1,461 
Kentucky Township  1,746 
Norton Township  931 
Oskaloosa Township  2,169 
Ozawkie Township  1,637 
Rock Creek Township  2,890 
Rural Township  761 
Sarcoxie Township  999 
Union Township  1,734 
Total population: 19,126 

Township map of Jefferson County, 2000
Population:
1860 (4,459)
1870 (12,526)
1880 (15,563)
1890 (16,620)
1900 (17,533)
1910 (15,826)
1920 (14,750)
1930 (14,129)
1940 (12,718)
1950 (11,084)
1960 (11,252)
1970 (11,945)
1980 (15,207)
1990 (15,905)
2000 (18,426)
2010 (19,126)
Other Resources: Post offices in Jefferson County
Cemeteries in Jefferson County, As of 1906
Newspapers Available on Microfilm
Townships and Independent Cities in Jefferson County
Bibliography
Kansas Memory
Links to Other Sites: Jefferson County page [Blue Skyways]
Jefferson County GenWeb
Early Kansas Maps [KanColl]
Look for other counties: