ZIP Code 03589 – Mount Washington, NH
Mount Washington, New Hampshire · Coos County · Eastern time
| ZIP code | 03589 |
|---|---|
| City | Mount Washington |
| State | New Hampshire |
| County | Coos County |
| Area code | 603 |
| Population | Not published (no Census ZIP area) |
| Time zone | Eastern · local time |
| ZIP type | PO box or unique ZIP (no Census area) |
| Center (lat, long) | 44.6956, -71.3874 |
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About ZIP 03589
ZIP code 03589 is assigned to Mount Washington, New Hampshire. It lies in Coos 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 03597 (West Stewartstown), about 3.4 miles away.
Every address in 03589 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