Find the last 4 digits (ZIP+4) for an address in 03866

ZIP 03866, Rochester, NH is filled in. Just type the street address.

Addresses are checked through our secure proxy. Bot checks use Cloudflare Turnstile. Each device can run 5 live checks per day; repeats of the same address are free.

ZIP Code 03866 – Rochester, NH

Rochester, New Hampshire · Strafford County · Eastern time

ZIP code03866
CityRochester
StateNew Hampshire
CountyStrafford County
Area code603
PopulationNot published (no Census ZIP area)
Time zoneEastern · local time
ZIP typePO box or unique ZIP (no Census area)
Center (lat, long)43.3045, -70.9756

Map

Nearby ZIP codes

03867 Rochester · 0.8 mi03868 Rochester · 2.2 mi03839 Rochester · 2.5 mi03878 Somersworth · 5.6 mi03835 Farmington · 6.1 mi03901 Berwick · 6.7 mi03825 Barrington · 6.9 mi03815 Center Strafford · 7.2 mi

About ZIP 03866

ZIP code 03866 is assigned to Rochester, New Hampshire. It lies in Strafford County. It is a PO-box-only or single-address ZIP, so the Census Bureau does not publish an area for it; the location shown is approximate. The closest neighboring ZIP is 03867 (Rochester), about 0.8 miles away.

Every address in 03866 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources