Zip Code 03595 — Twin Mountain, NH
03595 is a ZIP Code associated with Twin Mountain, NH, located within Coos. 03595 ranks #11 out of 14 ZIP codes in Coos County by population (and #218 out of 247 in NH). The area supports an estimated population of 648 residents across Data Pending housing units, with a population density of 6.8 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (44.306160, -71.527000)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 03595 |
| Primary City | Twin Mountain |
| State / Province | NH |
| County | Coos |
| Total Population | 648 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 6.8 people/sq mi |
| Timezone | America/New_York |
How 03595 Compares
| Metric | ZIP 03595 | Coos County | NH State Average |
|---|
| Population | 648 | 30,887 (Total) | 1,394,951 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 6.8 /sq mi | -- | -- |
| County Pop Rank | #11 of 14 | -- | -- |
Nearby ZIP Codes
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →