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WI area data

Sister Bay, WI

Sister Bay, WI.

Population: 2,158 (Census ACS)

The median home value in Sister Bay, WI is $537,129 — up 3.1% over the past year. Homes sell for a median $730,289 after a median 50 days on market. FEMA's National Risk Index rates the county's overall natural-hazard risk Relatively Low, with coldwave the top-rated hazards. Cost of living is 1.4% below the US average (BEA, metro/state-level).

Backed by 25+ public sourcesFEMA · U.S. Census · NOAA · Dept. of Education · EPA · and more

$537,129

Median home value

+3.1%

1-year change

50

Median days on market

Relatively Low

Hazard risk (county)

Home values & appreciation

Median home value
$537,129
1-year appreciation
+3.1%
3-year appreciation
+5.7%
5-year appreciation
+28.0%
10-year appreciation
+85.6%
All-time peak (2026-04)
$537,395
House Price Index (state)
483.7 (+4.8% YoY)

Sources: home value index (ZIP-level) · FHFA House Price Index (state-level)

Market activity

Median sale price
$730,289
Median list price
$484,000
Median price per sqft
$339
1-year sale-price change
+96.0%
Median days on market
50 days
Homes sold (recent period)
26
For-sale inventory
41
Sale-to-list ratio
100.2%
Active listings
34
New listings (monthly)
13

Source: recent area sales and market data (ZIP-level)

Rents

Studio fair-market rent
$915/mo
1BR fair-market rent
$969/mo
2BR fair-market rent
$1,268/mo
3BR fair-market rent
$1,511/mo
4BR fair-market rent
$1,666/mo

Sources: market rent index (ZIP-level) · HUD Fair Market Rents (metro/county-level, 40th-percentile regulatory reference)

Affordability

Cost of living index (Average)
98.6 (100 = US avg)
Electricity rate (state-level)
18.2¢/kWh
Natural gas rate (state-level)
$10.70/MCF
30-year mortgage rate (national)
7.40%
15-year mortgage rate (national)
6.73%

Sources: BEA Regional Price Parities (metro/state-level) · EIA energy rates (state-level) · Freddie Mac PMMS (national)

Natural hazards & flood risk

Overall hazard risk (county)
Relatively Low
Top hazards (county)
coldWave
Notable hazard ratings (county)
hail: Relatively Low · tornado: Relatively Low · coldWave: Relatively Moderate · iceStorm: Relatively Low · lightning: Relatively Low · strongWind: Relatively Low
Wildfire risk to homes (county)
Higher than 18% of US counties
Buildings in wildfire direct-exposure zone
69.6%
Radon potential (county)
High radon potential — EPA Zone 1 of 3
EPA Superfund (NPL) sites within 5 mi
None
EPA recommends radon testing for every home regardless of zone.

Sources: FEMA National Risk Index (county-level) · FEMA flood data (ZIP-level) · USDA Forest Service Wildfire Risk to Communities (county-level) · EPA radon zones + Superfund NPL

Climate (30-year normals)

Average annual temperature
44.0°F
Average high
53.0°F
Average low
36.0°F
Annual precipitation
32.9 in
Annual snowfall
57.4 in
USDA plant hardiness zone
5b (extreme annual low -15 to -10°F)

Sources: NOAA Climate Normals (30-year, nearest-station) · USDA Plant Hardiness Zone Map (2023)

Air quality

Air quality rating
Good
Median AQI (annual)
38
Days with Good air quality
170
Days with Moderate air quality
27
Highest AQI recorded (year)
108

Source: EPA air quality data (nearest monitoring station, annual)

Amenities

National parks within ~60 mi
1
Nearest national park
Sleeping Bear Dunes National Lakeshore (55 mi)
Airports within 30 mi
7
Nearest airport
Mave's Lakeview Road Airport (4 mi)
Hospitals nearby (~15 mi)
3
Hospitals include
OSF ST FRANCIS HOSPITAL AND MEDICAL GROUP, AURORA MEDICAL CENTER BAY AREA, DOOR COUNTY MEDICAL CENTER
Avg hospital rating (CMS)
4.0 / 5
Best hospital rating nearby (CMS)
4.0 / 5
EV charging stations (within 10 mi)
30
Solar radiation rating
Fair (3.7 kWh/m²/day)

Sources: National Park Service · FAA airport data · CMS hospital data · DOE/NREL (proximity-based)

Migration

Net migration (county)
+144 tax filers

Source: IRS county-to-county migration data (county-level, ~12-month lag)

Housing stock

Median year housing built
1,990
Housing built before 1970
21.8%
Housing built 2000 or later
32.6%
Median annual property tax
$3,574
Households with broadband internet
68.7%

Source: Census ACS 5-year estimates (ZIP-level)

Employment & development

Total county employment
12,562
Average weekly wage
$925
Top industries (by employment)
Accommodation & Food, Health Care, Construction
Annual residential building permits (county)
302

Sources: BLS QCEW (county-level) · Census Building Permits (county-level)

How it compares

Sister BayState medianUS median
Median home value$537,129$311,804$288,527
Median sale price$730,289$322,500$325,000
Median days on market50 days49 days51 days
Median annual property tax$3,574$2,994$2,006

State and US medians are computed across all US ZIP codes with sufficient public-data coverage, from the same sources as the figures above.

Area data compiled from public government, academic, and industry research feeds. Data sources →

Common questions

What is the median home value in Sister Bay, WI?
$537,129.
What is the median sale price in Sister Bay, WI?
$730,289.
How long do homes take to sell in Sister Bay, WI?
Median days on market: 50 days.
What is typical rent in Sister Bay, WI?
2-bedroom fair-market rent: $1,268/month (HUD FMR — a 40th-percentile regulatory reference, not market-observed).
What is the natural-hazard risk in Sister Bay, WI?
Overall risk: Relatively Low (FEMA NRI, county-level). Top hazards: coldWave.
What is the wildfire risk in Sister Bay, WI?
Risk to homes is higher than 18% of US counties (USDA Forest Service Wildfire Risk to Communities, county-level).
What is the radon potential in Sister Bay, WI?
High radon potential — EPA Zone 1 of 3, county-level. EPA recommends testing every home regardless of zone.
Are there Superfund sites near Sister Bay, WI?
No current or proposed National Priorities List sites within 5 miles (EPA).
What is the air quality in Sister Bay, WI?
Good. Median AQI: 38. (EPA AQI).
What is the cost of living in Sister Bay, WI?
Regional Price Parity: 98.6 (100 = US average) (Average) (BEA RPP, metro/state-level).

ZIP code for Sister Bay

Listing a home in Sister Bay, WI?

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Data last updated

Most recent source refresh: Oct 2026. See all data sources →

Data compiled by REAIGENT7 — AI listing platform for real estate agents