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Acton, MA ZIP codes

Acton, Massachusetts has 2 ZIP codes. They are in Middlesex County.

Population in these ZIPs
23,930
Avg. median income
$158,100population-weighted
Typical home value
$866,000population-weighted
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ZIP codes within 10 miles

Acton, MA ZIP codes list

Acton, MA ZIP codes
ZIP codeCountyPopulationMedian incomeTypical home value
01718Middlesex County404$104,167$488,800
01720Middlesex County23,526$159,010$872,500

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

Cities near Acton

Frequently asked questions

What is the ZIP code for Acton, MA?

Acton, MA has 2 ZIP codes: 01718 and 01720.

What county is Acton, Massachusetts in?

Acton ZIP codes are in Middlesex County.