Real Estate Data API

Williams Bay WI

96 active listings out of 2.9K total properties we track across 4 Williams Bay ZIPs — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.

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Active
96
Median
$550K
-34.8%
Sold Sep
13
+116.7%
Tracked
2.9K
Zoomed out

While you're here, take in the bigger picture — maps below show Wisconsin (statewide), not just Williams Bay. Same company, same dataset, different resolution.

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Inventory breakdown

Distribution of the 96 currently-active listings in Williams Bay, WI. Full dataset covers 2.9K properties — listings, off-market homes, rentals, and full history.

Active by price range
Under $300K 10 (10.4%)
$300K–$500K 26 (27.1%)
$500K–$750K 30 (31.2%)
$750K–$1M 16 (16.7%)
$1M–$2M 7 (7.3%)
$2M+ 7 (7.3%)
Active by bedroom count
Studio/1 bd 1
2 bd 18
3 bd 38
4 bd 27
5+ bd 9
Active by property type
Single Family 82 (85.4%)
Condo 11 (11.5%)
Lot 3 (3.1%)

ZIP codes in Williams Bay

Drill into any ZIP for hex-level breakdowns.

53191
→
Active
93
Tracked
2.8K
53147
→
Active
2
Tracked
16
53115
→
Active
1
Tracked
8
53190
→
Active
0
Tracked
2

Nearby cities

Other Wisconsin cities within driving distance.

Fontana
2.6 mi away
Active: 118
Lake Geneva
4.1 mi away
Active: 572
Walworth
4.3 mi away
Active: 72
Delavan
6.1 mi away
Active: 283
Burlington
8 mi away
Active: 479
Elkhorn
9.2 mi away
Active: 202
Darien
9.6 mi away
Active: 39
Sharon
10.2 mi away
Active: 20
For Developers

Get Williams Bay, WI data in your app

curl
request 
GET https://api.straply.com/v1/markets/city/williams-bay-wi
Authorization: Bearer $STRAPLY_KEY
200 OK response 
{
  "city": "williams-bay-wi",
  "total_tracked": 2873,
  "active": 96,
  "median_list": 549500
}
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Williams Bay, WI real estate: market summary

As of November 2026, Straply tracks 2,873 homes in Williams Bay, WI, with 96 active for sale at a median list price of $549,500 (~$297/sq ft). Notably, the market is cooling — the median sale price is down 35% year over year.

Median list price
$549,500
Median $/sq ft
$297
Active listings
96
Median sale price
$519,000 (-35% YoY)
Properties tracked
2,873

Frequently asked: Williams Bay, WI real estate

What is the median home price in Williams Bay?

The median list price in Williams Bay, WI is $549,500 (about $297 per square foot), based on 96 active listings tracked by Straply as of November 2026.

What price range are homes in Williams Bay?

Active listings in Williams Bay, WI concentrate in: 31% $500k–$750k and 27% $300k–$500k.

Are home prices in Williams Bay going up or down?

The median sale price is $519,000, down 35% year over year. Straply tracked 68 sales here over the past 12 months.

How many homes are for sale in Williams Bay?

Straply is tracking 96 active listings in Williams Bay, WI out of 2,873 properties on record as of November 2026.

How old are the homes in Williams Bay?

Most homes in Williams Bay, WI were built in the 1980s. About 58% were built after 1980, while 16% predate 1940. The newest tracked home dates to 2026.

What types of homes are in Williams Bay?

Williams Bay, WI is mostly single-family homes (85% of listings). Also common: condos 12%.

How many bedrooms do homes in Williams Bay typically have?

The most common size in Williams Bay, WI is 3 bd.

What are the most active ZIP codes in Williams Bay?

The ZIP codes with the most active listings in Williams Bay, WI are 53191, 53147, 53115.

What areas are near Williams Bay?

Nearby markets Straply also tracks include Fontana, Lake Geneva, Walworth, Delavan.

Data as of November 2026. Source: Straply. For address-level history and programmatic access, use the Straply API.