Unshakable ZIP Data 53191 | Williams Bay, WI Housing Market
Williams Bay · Walworth County · Whitewater, WI metro · Wisconsin · Data updated June 19, 2026
The median sale price in ZIP 53191, Williams Bay, Wisconsin is $549,837 at $277 per square foot. 13 single-family homes sold in the latest period, up 11.5 percent from a year earlier. Homes sit a median of 56 days on market with 12.8 months of supply. Sellers are getting 100.2 percent of list price and 46.2 percent of homes sold above asking.
Buyer leverage market. Negotiate hard.
Value anchors
| Metric | Value | Year over year |
|---|---|---|
| Average single-family value | $579,523 | |
| Average price per sq ft | $292 | |
| Median sale price | $549,837 | |
| Median sale price per sq ft | $277 | |
| Median home size | 1,985 sq ft | |
| Median new listing price | $565,169 | +13.4% |
| National size rank | 18,507 |
Sales activity
| Metric | Value | Year over year |
|---|---|---|
| Homes sold | 13 | +11.5% |
| Median days on market | 56 days | |
| Months of supply | 12.8 months | |
| New listings | 27 | -23.9% |
| Active listings | 76 | +51.9% |
| Pending sales | 20 | -11.9% |
Pricing power
| Metric | Value | Year over year |
|---|---|---|
| Average sale-to-list ratio | 100.2% | +2.0 pts |
| Share sold above list | 46.2% | +21.2 pts |
Bedroom value anchors
Average values by bedroom count. Value anchors for orientation, not appraisals.
2-bedroom
$369,656
3-bedroom
$557,905
4-bedroom
$645,734
These figures describe the single-family market for Williams Bay, Wisconsin ZIP 53191. They are market context, not a substitute for sold comps or a formal appraisal.