ZIP codes in San Sebastián Municipio
3 ZIPs touch San Sebastián Municipio, Puerto Rico. The blue dashed line is the county border; orange ZIPs reach into it.
3
ZIP codes
3
cross the county line
92,000
people in these ZIPs
78
counties in PR
Most people
San Sebastián Municipio ZIP list
More counties in Puerto Rico
- Río Grande Municipio1
- Sabana Grande Municipio3
- Salinas Municipio2
- San Germán Municipio5
- San Juan Municipio21
- San Lorenzo Municipio4
- Santa Isabel Municipio2
- Toa Alta Municipio7
- Toa Baja Municipio5
- Trujillo Alto Municipio4
- Utuado Municipio6
- Vega Alta Municipio3
Questions people actually ask
How many ZIP codes are in San Sebastián Municipio, Puerto Rico?
3 ZIP codes reach into San Sebastián Municipio. 3 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in San Sebastián Municipio has the most people?
00685 (San Sebastián) has about 39,988 residents, the most of any ZIP touching San Sebastián Municipio, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in San Sebastián Municipio 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 San Sebastián Municipio. 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