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ZIP codes in Lackawanna County

37 ZIPs touch Lackawanna County, Pennsylvania. The blue dashed line is the county border; orange ZIPs reach into it.

37

ZIP codes

9

cross the county line

247,854

people in these ZIPs

67

counties in PA

Most people

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Lackawanna County ZIP list

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Questions people actually ask

How many ZIP codes are in Lackawanna County, Pennsylvania?

37 ZIP codes reach into Lackawanna County, including 8 PO Box or single-address ZIPs placed by the town they serve. 9 of them are only partly in the county and also cover a neighboring county.

Which ZIP code in Lackawanna County has the most people?

18411 (Clarks Summit) has about 22,820 residents, the most of any ZIP touching Lackawanna County, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Lackawanna County and another county?

Yes. ZIP codes follow mail routes, not county lines. Rows marked with a percentage show how much of that ZIP’s land is in Lackawanna County. For one address, pin the exact spot on the ZIP finder to see its county.

Where does this list come from?

ZIP areas and their county overlaps come from the Census Bureau’s 2020 ZIP Code Tabulation Area to county relationship file. PO Box ZIPs have no area, so each is placed in the county of the ZIP area nearest the town it serves.

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Updated 2026-11-10 · Where the data comes from