Sumner, WI Homes for Sale (4 Real Estate Listings)

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$1,500,000 Lake Koshkonong

N1574 Joyce Rd, Sumner

4 Beds 4 Baths 1 Acres 4,100 SqFt Single Family MLS® # 1978385

PRIVATE SAND BEACH ON SOUTHERN WISCONSIN'S LARGEST LAKE. Wade straight in from your own shoreline, then turn to a level lawn with 1.28 acres to play. Boat, ski, fish, and paddle by day. Rela...

homecoin.com

$675,563

N1074 Olson Road, Sumner

4 Beds 3.5 Baths 2 Acres 2,531 SqFt Single Family MLS® # 2032669

Beautiful custom Taylor on a large lot....

$673,000

↓ $16,000

N2312 County Road J, Sumner

3 Beds 2 Baths 15 Acres 2,170 SqFt Single Family MLS® # 2021893

15+ Acres of Privacy, Nature & Possibility – Your Wisconsin Retreat Awaits Escape to your own private sanctuary with wooded trails, open pasture, and a scenic stream—offering space, serenit...

$244,500 Lake Koshkonong

W7720 Lamp Road, Sumner

2 Beds 1 Bath 0 Acres 768 SqFt Single Family MLS® # 2032728

Charming Original Log Home with Sunset Views and Northwoods Feel on Lake Koshkonong. Step back in time and embrace the timeless character of this charming 2-bedroom original log home cabin, ...

Sumner, WI Real Estate Statistics

Average Price	$570K
Lowest Price	$74.9K
Highest Price	$1.5M
Total Listings	6
Avg. Days On Market	38
Avg. Price/SQFT	$315

Property Types (active listings)

As of September 23, 2026 there are 4 active Sumner, WI real estate listings for sale with an average listing price of $. The highest-priced property listing is $, while the lowest priced property can be purchased for $. Sumner, WI homes for sale have an average price of $ per square foot, based on listings with an average of bedrooms, bathrooms, and square feet of living space.