Sumner 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
Wellington17,5307,682-0.5%9887.6City
Belle Plaine21,4461,468-0.41%1,7420.8City
Conway Springs31,1251,0930.72%1,1401.0City
Oxford41,0411,044-0.1%1,1490.9City
Caldwell51,0021,026-0.6%9271.1City
Argonia6448459-0.66%6420.7City
South Haven73263260%3261.0City
Geuda Springs81561540%4530.3City
Milton9143299-0.69%324.4CDP
Peck10961187.87%2710.4CDP
Mayfield1173730%2470.3City
Milan125153-1.92%3860.1City
Hunnewell1343420%770.6City

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 Sumner County, Kansas?

Wellington is the largest city in Sumner County.

What is the smallest city in Sumner County, Kansas?

Hunnewell is the smallest city in Sumner County.

How many cities are in Sumner County?

There are 13 cities in Sumner County, Kansas.

Frequently Asked Questions