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Forest City, PA ZIP code

The ZIP code for Forest City, Pennsylvania is 18421. It is in Susquehanna County.

Population in these ZIPs
4,603
Avg. median income
$68,300population-weighted
Typical home value
$215,500population-weighted
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ZIP codes within 10 miles

Forest City, PA ZIP code list

Forest City, PA ZIP codes
ZIP codePopulationMedian incomeTypical home value
184214,603$68,256$215,500

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 Forest City, PA?

The ZIP code for Forest City, PA is 18421.

What county is Forest City, Pennsylvania in?

Forest City ZIP codes are in Susquehanna County.