Town guide
Sumner
A town of 78 people in Missouri
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What’s happening
Weather
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The Sumner album
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About Sumner
City in Missouri, United States1882Established
78Population
0.2 sq miArea
682 ftElevation
Sumner is a city in Chariton County, Missouri, United States. The population was 78 at the 2020 census. It was named in honor of U.S. Senator Charles Sumner.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
Town numbers
ZIP code64681
Area code660
Living in Sumner
Health in Sumner
Compared with Missouri
1better than MO·4worse
of 32 measures CDC estimates. The other 27 are too close to call.
BetterToo close to callWorse
What stands out
Care nearby
Pershing Memorial HospitalBrookfield · 12.4 mi · ER · rural critical access
Compass HealthMarceline · 16.8 mi · sliding-scale fees
Primary careShortage · county-wide
DentalShortage · county-wide
Mental healthShortage · county-wide
CDC PLACES 2025 · modeled estimates for adults · CDC's estimate for Sumner · CMS · HRSAHealth in Sumner →
Natural hazards in Sumner
High
Expected storm and flood damage is higher than in 66% of U.S. communities.
🌊 Inland flooding🌪️ Tornadoes🌵 Drought
FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Sumner →
Climate in Sumner
Full climate →Sumner has chilly winters and warm summers. A typical July afternoon reaches 88°, a January night drops to 19°, and about 14 inches of snow falls in a normal winter.
40° / 22°Winter
64° / 43°Spring
86° / 65°Summer
66° / 44°Fall
NOAA U.S. Climate Normals, 1991–2020Climate in Sumner →
Libraries near Sumner
See all →Nearest: Brookfield Public LibraryBrookfield · 12.7 miles · 44 hrs a week
Where Sumner is
Explore map →
Location map
Missouri · MOTown boundary on OpenStreetMap →
How things work in Sumner
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