Unshakable ZIP Data 53178 | Sullivan, WI Housing Market
Sullivan · Jefferson County · Watertown-Fort Atkinson, WI metro · Wisconsin · Data updated June 19, 2026
The median sale price in ZIP 53178, Sullivan, Wisconsin is $414,877 at $197 per square foot. 7 single-family homes sold in the latest period, down 9.9 percent from a year earlier. Homes sit a median of 45 days on market with 1.4 months of supply. Sellers are getting 100.3 percent of list price and 57.2 percent of homes sold above asking.
Balanced market.
Value anchors
| Metric | Value | Year over year |
|---|---|---|
| Average single-family value | $436,519 | |
| Average price per sq ft | $208 | |
| Median sale price | $414,877 | |
| Median sale price per sq ft | $197 | |
| Median home size | 2,103 sq ft | |
| Median new listing price | $475,832 | +19.0% |
| National size rank | 17,389 |
Sales activity
| Metric | Value | Year over year |
|---|---|---|
| Homes sold | 7 | -9.9% |
| Median days on market | 45 days | |
| Months of supply | 1.4 months | |
| New listings | 7 | +1.5% |
| Active listings | 10 | +1.3% |
| Pending sales | 6 | -13.1% |
Pricing power
| Metric | Value | Year over year |
|---|---|---|
| Average sale-to-list ratio | 100.3% | -4.3 pts |
| Share sold above list | 57.2% | +7.2 pts |
These figures describe the single-family market for Sullivan, Wisconsin ZIP 53178. They are market context, not a substitute for sold comps or a formal appraisal.