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Koshkonong

A town of 3,748 people in Jefferson County, Wisconsin
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Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US

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About Koshkonong

Town in Wisconsin, United States
3,763Population
42.6 sq miArea
817 ftElevation

Koshkonong is a town in Jefferson County, Wisconsin, United States. The population was 3,763 at the 2020 census. The town entirely surrounds the city of Fort Atkinson. The unincorporated communities of Koshkonong Mounds and Vinnie Ha Ha are located in the town. The unincorporated communities of Blackhawk Island and Koshkonong, as well as the census-designated place of Lake Koshkonong are also located partially in the town.

From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

Living in Koshkonong

Health in Koshkonong

B−

Health Grade B−

Healthier than 50% of U.S. towns on seven CDC estimates.

Compared with Wisconsin

≈Just like Wisconsin

No difference on any of 32 measures is outside the margin of error.

BetterToo close to callWorse

What stands out

Nothing stands out: Koshkonong tracks Wisconsin closely.

Care nearby

Fort Memorial HospitalFort Atkinson · 2.5 mi · ER
Rock River Community Clinic - WhitewaterWhitewater · 5.5 mi · sliding-scale fees
Primary careNo shortage
DentalNo shortage
Mental healthNo shortage
CDC PLACES 2025 · modeled estimates for adults · ZIP codes 53538, 53190, 53563 · CMS · HRSAHealth in Koshkonong →

Natural hazards in Koshkonong

46
Moderate

Expected storm and flood damage is higher than in 46% of U.S. communities.

🌊 Inland flooding🌪️ Tornadoes🥶 Cold waves
FEMA National Risk Index December 2025 · OpenFEMANatural hazards in Koshkonong →

Climate in Koshkonong

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Koshkonong has cold, snowy winters and pleasant summers. A typical July afternoon reaches 83°, a January night drops to 12°, and about 36 inches of snow falls in a normal winter.

31° / 15°Winter
57° / 36°Spring
81° / 59°Summer
60° / 40°Fall
NOAA U.S. Climate Normals, 1991–2020Climate in Koshkonong →

Libraries near Koshkonong

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Nearest: Dwight Foster Public LibraryFort Atkinson · 2.3 miles · 63 hrs a week

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You’re in Koshkonong, WIJefferson CountyView boundary

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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/15 · 2025-01-01