Sumner, WI Lake Property For Sale (2 Real Estate Listings)

Sort by:

$600,000 Lake Koshkonong

W7742 Lamp Road, Sumner

3 Beds 2 Baths 0 Acres 1,806 SqFt Single Family MLS® # 2003228

This home will fly off the market! Limited showing opportunities and OPEN HOUSE 7/6 Sunday 1-3pm. Stunning Lake Koshkonong retreat! Enjoy a Wisconsin "Up North" feel with an easy commute. Th...

Lindsay Gallagher & Associates

$449,000 Lake Koshkonong

W8738 White Crow Road, Sumner

2 Beds 1 Bath 1 Acres 1,150 SqFt Single Family MLS® # 2005397

Nestled in a serene, park-like setting beneath a canopy of majestic 200-year old trees, adorable 2-Bed, 1-Bath lake cottage offers the perfect blend of rustic charm and lakeside tranquility....

Coldwell Banker Real Estate Group

Sumner, WI Real Estate Statistics

Average Price	$581K
Lowest Price	$130K
Highest Price	$799K
Total Listings	6
Avg. Days On Market	100
Avg. Price/SQFT	$435

Property Types (active listings)

As of October 18, 2025 there are 2 active Sumner, WI lake property listings for sale with an average listing price of $524,500. The highest-priced waterfront listing is $600,000, while the lowest priced waterfront listing can be purchased for $449,000. Sumner, WI lakeshore listings have an average price of $361 per square foot, based on listings with an average of 2.5 bedrooms, 1.5 bathrooms, and 1,478 square feet of living space.