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Union, MI ZIP code

The ZIP code for Union, Michigan is 49130. It is in Cass County.

Population in these ZIPs
1,258
Avg. median income
$76,700population-weighted
Typical home value
$374,100population-weighted
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ZIP codes within 10 miles

Union, MI ZIP code list

Union, MI ZIP codes
ZIP codePopulationMedian incomeTypical home value
491301,258$76,667$374,100

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 Union

Frequently asked questions

What is the ZIP code for Union, MI?

The ZIP code for Union, MI is 49130.

What county is Union, Michigan in?

Union ZIP codes are in Cass County.