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
Today
96°F
Sunny2% precip
Tonight
75°F
Mostly Clear1% precip
Tuesday
96°F
Mostly Sunny then Slight Chance Showers And Thunderstorms40% precip
Tuesday Night
70°F
Chance Showers And Thunderstorms46% 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