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ZIP codes in Newport County

9 ZIPs touch Newport County, Rhode Island. The blue dashed line is the county border; orange ZIPs reach into it.

9

ZIP codes

0

cross the county line

84,657

people in these ZIPs

5

counties in RI

Most people

← All Rhode Island ZIP codes

Newport County ZIP list

More counties in Rhode Island

All 5 counties in Rhode Island

Questions people actually ask

How many ZIP codes are in Newport County, Rhode Island?

9 ZIP codes reach into Newport County, including 1 PO Box or single-address ZIPs placed by the town they serve. Every ZIP area here lies wholly inside the county.

Which ZIP code in Newport County has the most people?

02840 (Newport) has about 23,448 residents, the most of any ZIP touching Newport County, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Newport 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 Newport 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