Townapedia
Dickinson Tobacco Warehouse
Dickinson Tobacco Warehouse · TheCatalyst31, CC0
Lorine Niedecker Cottage
Lorine Niedecker Cottage · TheCatalyst31, CC0
The Shekey House
The Shekey House · Boscophotos, CC BY-SA 3.0

Lake Koshkonong, Wisconsin

Lake Koshkonong is a community of 1,010 people in Jefferson County, Wisconsin.

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Population1,010 -11.0% since 2019
Elevation781 ft 238 m
Land area14.1 sq mi
ZIP codes53534, 53538, 53563
Nearest airportSouthern Wisconsin Regional Airport (JVL) 17 mi

Why visit Lake Koshkonong

Townapedia lists 4 museums and landmarks, 7 parks and trails, 4 places to eat and 2 places to stay in and around town.

Highlights include Albert and Mary Shekey House, Lorine Niedecker Cottage and Koshkonong Mounds Country Club.

July is the warmest month, with average highs of 82°F; January lows average 11°F, and about 36 inches of snow fall in a normal year.

About Lake Koshkonong

Lake Koshkonong is a census-designated place (CDP) in the towns of Koshkonong and Sumner, Jefferson County, Wisconsin, United States. The population was 1,239 at the 2020 census. Lake Koshkonong is in the area.

From the Wikipedia article Lake Koshkonong, Wisconsin (this version), under CC BY-SA 4.0.

Museums and landmarks4

Albert and Mary Shekey House

Monument and historic site · National Register of Historic Places · 2.0 mi

House in Koshkonong, Wisconsin

Open in Google Maps · Wikipedia

Lorine Niedecker Cottage

Monument and historic site · National Register of Historic Places · 3.5 mi

House in Wisconsin

Open in Google Maps · Wikipedia

Pomeroy & Pelton Tobacco Warehouse

Monument and historic site · National Register of Historic Places · 3.5 mi

Historic tobacco warehouse in Edgerton, Wisconsin

Open in Google Maps · Wikipedia

Carcajou Point Site

Monument and historic site · 3.5 mi

Archaeological site in Wisconsin, United States

Open in Google Maps · Wikipedia

Parks, trails and playgrounds7

Koshkonong Mounds Country Club

Golf course · 1.8 mi

W7670 Koshkonong Mounds Road, Fort Atkinson

Open in Google Maps · +1-920-563-2823

Indian Mound County Park

Park · 1.8 mi

Open in Google Maps

Koshkonong Wildlife Area

Hiking and trails · 2.9 mi

Open in Google Maps

Lower Playground

Playground · 1.4 mi

Open in Google Maps

Royce Dallman Park

Park · 2.1 mi

Open in Google Maps

Swimming Beach

Beach · 1.6 mi

Open in Google Maps

Upper Playground

Playground · 1.4 mi

Open in Google Maps

Restaurants and cafes4

Buckhorn Supper Club

Restaurant · 2.2 mi

11802 North Charley Bluff Road, Milton

Open in Google Maps

Duner's Blackhawk Club

Restaurant · 2.6 mi

W7750 Blackhawk Island Road

Open in Google Maps

Tiki Bar

Bar and pub · 1.4 mi

Open in Google Maps

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Where to stay2

Silo Ridge

Campground · 1.6 mi

Open in Google Maps

Schools, colleges and libraries6

Map of Lake Koshkonong

23 places. The map loads OpenStreetMap tiles when you open it.

Climate by month

20°40°60°80°January: 1.5 in of rainFebruary: 1.4 in of rainMarch: 2.0 in of rainApril: 3.6 in of rainMay: 4.1 in of rainJune: 5.0 in of rainJuly: 4.0 in of rainAugust: 3.9 in of rainSeptember: 3.3 in of rainOctober: 2.8 in of rainNovember: 2.2 in of rainDecember: 1.7 in of rainJanuary: 28°FFebruary: 32°FMarch: 44°FApril: 57°FMay: 69°FJune: 79°FJuly: 82°FAugust: 81°FSeptember: 74°FOctober: 61°FNovember: 46°FDecember: 33°FJanuary: 11°FFebruary: 14°FMarch: 25°FApril: 36°FMay: 48°FJune: 58°FJuly: 62°FAugust: 60°FSeptember: 51°FOctober: 40°FNovember: 29°FDecember: 18°FJFMAMJJASOND
Average high Average low Rain
Monthly table
MonthHighLowRainSnow
Jan28°F11°F1.5 in10.7 in
Feb32°F14°F1.4 in9.4 in
Mar44°F25°F2.0 in4.0 in
Apr57°F36°F3.6 in1.2 in
May69°F48°F4.1 in0.2 in
Jun79°F58°F5.0 in0.0 in
Jul82°F62°F4.0 in0.0 in
Aug81°F60°F3.9 in0.0 in
Sep74°F51°F3.3 in0.0 in
Oct61°F40°F2.8 in0.1 in
Nov46°F29°F2.2 in2.1 in
Dec33°F18°F1.7 in8.7 in

U.S. Climate Normals 1991-2020 for Ft Atkinson (5 mi away), NOAA NCEI.

People and cost of living

$97,115median household income
$370,300median home value
$1,296median monthly rent
54.0median age
27.2%of adults have a bachelor's degree or higher
90.4%of homes are owner-occupied
25.6 minaverage commute
Age of residents
Under 1815%18 to 3411%35 to 6442%65 and over31%

American Community Survey 5-year estimates, 2020-2024, U.S. Census Bureau. Estimates have margins of error, larger for small towns.

Disaster history

Jefferson County has had 8 federal disaster declarations since 2000, most often for severe storms.

  • 2026-06-30: Severe Storms, Tornadoes, And Flooding (Flood)
  • 2020-04-04: Covid-19 Pandemic (Biological)
  • 2020-03-13: Covid-19 (Biological)
  • 2008-06-14: Severe Storms, Tornadoes, And Flooding (Severe Storm)
  • 2008-03-19: Record Snow And Near Record Snow (Snowstorm)
  • 2007-08-26: Severe Storms And Flooding (Severe Storm)

OpenFEMA disaster declarations summaries.

Getting there and nearby towns

Southern Wisconsin Regional Airport (JVL) is the nearest airport with scheduled flights listed in OpenStreetMap, 17 miles away.

Drive times are estimates from straight-line distance, not routes.

Reviews, tips and questions

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Sources and licences

Photo credits

Page built October 30, 2026. Spotted a mistake? Tell us or suggest a place.