Real Estate Data API

54234 Sister Bay

39 active listings out of 3.4K total properties we track in ZIP 54234 (Sister Bay, WI) — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.

Get this data → API docs
Active
39
Median
$800K
±0%
Sales (12mo)
110
Tracked
3.4K
Zoomed out

While you're here, take in the bigger picture — maps below show Wisconsin (statewide), not just 54234. Same company, same dataset, different resolution.

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Key Numbers
Tracked
3.4K
Active
39
Median list
$800K
Sales (12mo)
110
Get this data →
Key Numbers
Tracked
3.4K
Active
39
Median list
$800K
Sales (12mo)
110
Get this data →
Key Numbers
Tracked
3.4K
Active
39
Median list
$800K
Sales (12mo)
110
Get this data →
Key Numbers
Tracked
3.4K
Active
39
Median list
$800K
Sales (12mo)
110
Get this data →
Key Numbers
Tracked
3.4K
Active
39
Median list
$800K
Sales (12mo)
110

Inventory breakdown

Distribution of the 39 currently-active listings in ZIP 54234. Full dataset covers 3.4K properties — listings, off-market homes, rentals, and full history.

Active by price range
Under $300K 1 (2.6%)
$300K–$500K 7 (17.9%)
$500K–$750K 8 (20.5%)
$750K–$1M 9 (23.1%)
$1M–$2M 11 (28.2%)
$2M+ 3 (7.7%)
Active by bedroom count
Studio/1 bd 4
2 bd 13
3 bd 15
4 bd 4
5+ bd 3
Active by property type
Condo 29 (74.4%)
Single Family 10 (25.6%)
For Developers

Get Sister Bay 54234 data in your app

curl
request 
GET https://api.straply.com/v1/markets/zip/54234
Authorization: Bearer $STRAPLY_KEY
200 OK response 
{
  "zip": "54234",
  "total_tracked": 3443,
  "active": 39,
  "median_list": 799900
}
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ZIP 54234 · Sister Bay, WI real estate: market summary

As of June 2026, Straply tracks 3,443 homes in ZIP 54234 (Sister Bay, WI), with 39 active for sale at a median list price of $799,900 (~$429/sq ft). Notably, most homes were built in the 1990s.

Median list price
$799,900
Median $/sq ft
$429
Active listings
39
Properties tracked
3,443

Frequently asked: ZIP 54234 · Sister Bay, WI real estate

What is the median home price in ZIP 54234?

The median list price in ZIP 54234 (Sister Bay, WI) is $799,900 (about $429 per square foot), based on 39 active listings tracked by Straply as of June 2026.

What price range are homes in ZIP 54234?

Active listings in ZIP 54234 (Sister Bay, WI) concentrate in: 28% $1m–$2m and 23% $750k–$1m.

How many homes are for sale in ZIP 54234?

Straply is tracking 39 active listings in ZIP 54234 (Sister Bay, WI) out of 3,443 properties on record as of June 2026.

How old are the homes in ZIP 54234?

Most homes in ZIP 54234 (Sister Bay, WI) were built in the 1990s. About 74% were built after 1980, while 7% predate 1940. The newest tracked home dates to 2026.

What types of homes are in ZIP 54234?

ZIP 54234 (Sister Bay, WI) is mostly condos (74% of listings). Also common: single-family homes 26%.

How many bedrooms do homes in ZIP 54234 typically have?

The most common size in ZIP 54234 (Sister Bay, WI) is 3 bd.

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