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West Middlesex, PA ZIP code

The ZIP code for West Middlesex, Pennsylvania is 16159. It is in Mercer County.

Population in these ZIPs
4,455
Avg. median income
$69,400population-weighted
Typical home value
$189,400population-weighted
Metro area
Hermitage, PA
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ZIP codes within 10 miles

West Middlesex, PA ZIP code list

West Middlesex, PA ZIP codes
ZIP codePopulationMedian incomeTypical home value
161594,455$69,391$189,400

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

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Frequently asked questions

What is the ZIP code for West Middlesex, PA?

The ZIP code for West Middlesex, PA is 16159.

What county is West Middlesex, Pennsylvania in?

West Middlesex ZIP codes are in Mercer County.