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ZIP codes in Rockland County

27 ZIPs touch Rockland County, New York. The blue dashed line is the county border; orange ZIPs reach into it.

27

ZIP codes

1

cross the county line

341,883

people in these ZIPs

62

counties in NY

Most people

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Rockland County ZIP list

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Questions people actually ask

How many ZIP codes are in Rockland County, New York?

27 ZIP codes reach into Rockland County, including 1 PO Box or single-address ZIPs placed by the town they serve. 1 of them are only partly in the county and also cover a neighboring county.

Which ZIP code in Rockland County has the most people?

10977 (Spring Valley) has about 71,571 residents, the most of any ZIP touching Rockland County, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Rockland 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 Rockland 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