Sumner County
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- Population
- 22,353
- Area
- 1,181.67 sq mi (3,060.51 km²), 3.29 sq mi water
- Median age
- 41.3
- Households
- 8,970
- Persons per household
- 2.5
- Median household income
- $63,951
- Median house value
- $135,100
Demographics: 2020–2024 ACS
Overnight
73°F
Mostly Clear2% precip
Monday
97°F
Sunny2% precip
Monday Night
76°F
Mostly Clear1% precip
Tuesday
96°F
Mostly Sunny then Chance Showers And Thunderstorms41% precip
Cities & Towns in Sumner County
ArgoniaAvon TownshipBelle PlaineBelle Plaine TownshipBluff TownshipCaldwellCaldwell TownshipChikaskia TownshipConway SpringsConway TownshipCreek TownshipDixon TownshipDowns TownshipEden TownshipFalls TownshipGeuda SpringsGore TownshipGreene TownshipGuelph TownshipHarmon TownshipHunnewellIllinois TownshipJackson TownshipLondon TownshipMayfieldMilanMiltonMorris TownshipMulvaneOsborne TownshipOxfordOxford TownshipPalestine TownshipPeckRyan TownshipSeventy-Six TownshipSouth HavenSouth Haven TownshipSpringdale TownshipSumner TownshipValverde TownshipWalton TownshipWellingtonWellington Township