Current Williams Bay median home price: $495,580
| Date | Average price (≈) | Minimum price (⇓) | Maximum price (⇑) |
|---|---|---|---|
| 2025 September | $544,519 | $490,067 | $598,971 |
| 2025 October | $548,684 | $493,815 | $603,552 |
| 2025 November | $552,881 | $497,592 | $608,169 |
| 2025 December | $557,109 | $501,398 | $612,820 |