ZIP codes in Berks County
68 ZIPs touch Berks County, Pennsylvania. The blue dashed line is the county border; orange ZIPs reach into it.
68
ZIP codes
24
cross the county line
593,569
people in these ZIPs
67
counties in PA
Most people
Berks County ZIP list
More counties in Pennsylvania
- Adams County20
- Allegheny County158
- Armstrong County38
- Beaver County28
- Bedford County29
- Blair County21
- Bradford County31
- Bucks County78
- Butler County43
- Cambria County56
- Cameron County4
Questions people actually ask
How many ZIP codes are in Berks County, Pennsylvania?
68 ZIP codes reach into Berks County, including 4 PO Box or single-address ZIPs placed by the town they serve. 24 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Berks County has the most people?
19464 (Pottstown) has about 49,101 residents, the most of any ZIP touching Berks County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Berks 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 Berks 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