Sumner, WI Lake Property For Sale (3 Real Estate Listings)

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$679,000 Lake Koshkonong

W8647 White Crow Road, Sumner

2 Beds 2.5 Baths 0 Acres 2,574 SqFt Single Family MLS® # 1996410

Back on the market due to unforeseen circumstances with the buyer. This delightful lakeside home is the perfect escape on the shores of Lake Koshkonong. Enjoy peaceful mornings with scenic v...

Devout Real Estate Group, LLC

$424,900 Lake Koshkonong

W8603 E Lake Drive, Sumner

2 Beds 1 Bath 0 Acres 528 SqFt Single Family MLS® # 1998161

Fall in love with this absolutely adorable updated cottage on a dead end road with breathtaking views from your 80' of water frontage on Lake Koshkonong! This 528 sq ft, 2 bed, 1 bath cottag...

Brayson Realty, LLC

$396,500 Lake Koshkonong

↓ $3,400

W7813 Willow, Sumner

3 Beds 2 Baths 0 Acres 1,620 SqFt Single Family MLS® # 1908343

Experience serene lakeside living on Lake Koshkonong with 60 feet of private lakefront access. This home is perfect for water enthusiasts, offering opportunities for swimming, fishing, skiin...

Compass Wisconsin-Lake Geneva

Sumner, WI Real Estate Statistics

Average Price	$531K
Lowest Price	$130K
Highest Price	$800K
Total Listings	6
Avg. Days On Market	68
Avg. Price/SQFT	$458

Property Types (active listings)

As of May 19, 2025 there are 3 active Sumner, WI lake property listings for sale with an average listing price of $500,133. The highest-priced waterfront listing is $679,000, while the lowest priced waterfront listing can be purchased for $396,500. Sumner, WI lakeshore listings have an average price of $438 per square foot, based on listings with an average of 2.3 bedrooms, 1.8 bathrooms, and 1,574 square feet of living space.