Jefferson County, Kansas
Jefferson County is a county in Kansas with an estimated population of 18,327 in 2023. 8 cities, towns and Census places in it are indexed here.
Largest places in Jefferson County
Oskaloosa 1,080Valley Falls 1,075Perry 851McLouth 835Meriden 725Ozawkie 627Nortonville 591Winchester 447
About Jefferson County
Jefferson County is one of the counties of Kansas. County governments in Kansas handle local services such as courts, property records and elections; cities and towns inside the county run their own municipal services. Population figures come from the Census Bureau's Vintage 2023 estimates, which are updated annually.