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Baldwin, WI ZIP code

The ZIP code for Baldwin, Wisconsin is 54002. It is in St. Croix County.

Population in these ZIPs
6,872
Avg. median income
$88,300population-weighted
Typical home value
$343,700population-weighted
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ZIP codes within 10 miles

Baldwin, WI ZIP code list

Baldwin, WI ZIP codes
ZIP codePopulationMedian incomeTypical home value
540026,872$88,275$343,700

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

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Frequently asked questions

What is the ZIP code for Baldwin, WI?

The ZIP code for Baldwin, WI is 54002.

What county is Baldwin, Wisconsin in?

Baldwin ZIP codes are in St. Croix County.