Jefferson County, Kansas Cities (2024)

Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)

City
Rank
2024 Pop.
2020 Pop.
Change
Density (/mi²)
Area (mi²)
Type
Oskaloosa11,0741,097-0.56%1,0801.0City
Valley Falls21,0691,091-0.56%1,5180.7City
Perry3850853-0.12%1,1350.7City
McLouth4828855-0.84%1,4380.6City
Meriden5718744-0.97%9340.8City
Ozawkie6624635-0.48%2,1010.3City
Nortonville7588600-0.51%1,3610.4City
Winchester8444455-0.67%1,3500.3City
Grantville92272061.79%3700.6CDP
Williamstown101871298.09%1,5980.1CDP

Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.

What is the largest city in Jefferson County, Kansas?

Oskaloosa is the largest city in Jefferson County.

What is the smallest city in Jefferson County, Kansas?

Williamstown is the smallest city in Jefferson County.

How many cities are in Jefferson County?

There are 10 cities in Jefferson County, Kansas.

Frequently Asked Questions