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Fairfield, PA ZIP code

The ZIP code for Fairfield, Pennsylvania is 17320. It is in Adams County.

Population in these ZIPs
8,124
Avg. median income
$90,100population-weighted
Typical home value
$348,200population-weighted
Metro area
Gettysburg, PA
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ZIP codes within 10 miles

Fairfield, PA ZIP code list

Fairfield, PA ZIP codes
ZIP codePopulationMedian incomeTypical home value
173208,124$90,076$348,200

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 Fairfield

Frequently asked questions

What is the ZIP code for Fairfield, PA?

The ZIP code for Fairfield, PA is 17320.

What county is Fairfield, Pennsylvania in?

Fairfield ZIP codes are in Adams County.