03589 ZIP Code — Mount Washington, NH
Coos County, New Hampshire
ZIP code 03589 is located in Mount Washington, New Hampshire, within Coos County. It covers approximately 0.00 square miles and serves a population of 0 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 603.
0
population
0.00
sq mi land
Standard
ZIP type
Eastern (ET)
timezone
03589 ZIP code map
Cities in ZIP code 03589
Below are the cities the US Postal Service accepts for ZIP code 03589. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Mount Washington | Acceptable |
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 0 |
| Population density | 0 / sq mi |
| State FIPS | 33 |
| County FIPS | 007 |
| Geography | |
|---|---|
| Land area | 0.00 sq mi |
| Water area | 0.00 sq mi |
| Latitude | 44.2855 |
| Longitude | -71.2979 |
| Timezone | Eastern (ET) |
| Area code | 603 |