Sister Bay, WI ZIP code
The ZIP code for Sister Bay, Wisconsin is 54234. It is in Door County.
- Population in these ZIPs
- 2,158
- Avg. median income
- $74,600population-weighted
- Typical home value
- $536,300population-weighted
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Sister Bay, WI ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 54234 | 2,158 | $74,583 | $536,300 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Sister Bay
- Ephraim 3 mi
- Ellison Bay 5 mi
- Baileys Harbor 7 mi
- Fish Creek 7 mi
- Egg Harbor 14 mi
- Washington Island 16 mi
- Sturgeon Bay 27 mi
- Marinette 30 mi
- Peshtigo 36 mi
- Porterfield 36 mi
- Brussels 38 mi
- Forestville 40 mi
Frequently asked questions
What is the ZIP code for Sister Bay, WI?
The ZIP code for Sister Bay, WI is 54234.
What county is Sister Bay, Wisconsin in?
Sister Bay ZIP codes are in Door County.