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Milltown, NJ ZIP code

The ZIP code for Milltown, New Jersey is 08850. It is in Middlesex County.

Population in these ZIPs
8,538
Avg. median income
$141,600population-weighted
Typical home value
$609,500population-weighted
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ZIP codes within 10 miles

Milltown, NJ ZIP code list

Milltown, NJ ZIP codes
ZIP codePopulationMedian incomeTypical home value
088508,538$141,601$609,500

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 Milltown, NJ?

The ZIP code for Milltown, NJ is 08850.

What county is Milltown, New Jersey in?

Milltown ZIP codes are in Middlesex County.