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Harsens Island, MI ZIP code

The ZIP code for Harsens Island, Michigan is 48028. It is in St. Clair County.

Population in these ZIPs
1,272
Avg. median income
$109,700population-weighted
Typical home value
$319,400population-weighted
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ZIP codes within 10 miles

Harsens Island, MI ZIP code list

Harsens Island, MI ZIP codes
ZIP codePopulationMedian incomeTypical home value
480281,272$109,730$319,400

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 Harsens Island

Frequently asked questions

What is the ZIP code for Harsens Island, MI?

The ZIP code for Harsens Island, MI is 48028.

What county is Harsens Island, Michigan in?

Harsens Island ZIP codes are in St. Clair County.