ZIP codes in Orleans County
18 ZIPs touch Orleans County, New York. The blue dashed line is the county border; orange ZIPs reach into it.
18
ZIP codes
10
cross the county line
82,458
people in these ZIPs
62
counties in NY
Most people
Orleans County ZIP list
More counties in New York
- New York County147
- Niagara County25
- Oneida County65
- Onondaga County71
- Ontario County31
- Orange County58
- Oswego County32
- Otsego County46
- Putnam County13
- Queens County75
- Rensselaer County32
- Richmond County14
Questions people actually ask
How many ZIP codes are in Orleans County, New York?
18 ZIP codes reach into Orleans County, including 3 PO Box or single-address ZIPs placed by the town they serve. 10 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Orleans County has the most people?
14420 (Brockport) has about 20,375 residents, the most of any ZIP touching Orleans County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Orleans 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 Orleans 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