Is Sullivan, WI 53178 a buyer’s or seller’s market?

The Sullivan housing market right now

In the three months ending August 31, 2026, 57% of homes in Sullivan, WI 53178 sold above their list price, the typical home went under contract in 40 days and there were 0.5 months of supply. Under four months of supply means sellers have the edge: expect competition for well-priced homes. With only 7 sales, these figures can swing a lot from month to month.

Compared with the same period a year earlier, the share selling over asking rose from 29%, homes sold faster (63 days then) and the median sale price rose 8% to $499,784. Overall, Sullivan is more competitive than a year ago, so tougher for buyers.

Within Jefferson County, homes here sell faster than in 56% of the county’s ZIP codes, and sell more often over asking than in 89%.

Nearby, buyers who want less competition could look at Lake Mills 53551 (28% sold over asking) or Waterloo 53594 (29% sold over asking), while Helenville 53137 (60% sold over asking) is even more competitive.