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Bethlehem, PA ZIP codes

Bethlehem, Pennsylvania has 6 ZIP codes, including 2 PO Box ZIPs. They are in Northampton County and Lehigh County.

Population in these ZIPs
129,661
Avg. median income
$84,700population-weighted
Typical home value
$347,800population-weighted
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ZIP codes within 10 miles

Bethlehem, PA ZIP codes list

Bethlehem, PA ZIP codes
ZIP codeCountyPopulationMedian incomeTypical home value
18015Northampton County34,852$60,800$292,100
18016 PO BoxNorthampton County———
18017Northampton County40,640$91,173$390,600
18018Lehigh County32,965$75,417$298,400
18020Northampton County21,204$126,166$434,400
18025 PO BoxLehigh County———

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 Bethlehem

Frequently asked questions

What is the ZIP code for Bethlehem, PA?

Bethlehem, PA has 6 ZIP codes: 18015, 18016, 18017, 18018, 18020 and 18025.

What county is Bethlehem, Pennsylvania in?

Bethlehem ZIP codes are in Northampton County and Lehigh County.

Which Bethlehem ZIP codes are PO Boxes?

18016 and 18025 are PO Box or single-organization ZIP codes; they have no residential delivery area.