| ZIP Codes: | 17 ZIP Codes (14 Standard, 3 PO Box, 0 Unique) [See All] |
| Area Code: | 603 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:13:09 PM |
| Population: | 42,802 [See All] |
| FIPS: | 33019 |
| CBSA: | Lebanon-Claremont, NH-VT |
| Land Area: | 529 sq mi |
| Water Area: | 14 sq mi |
| Coordinates: | 43.3744, -72.2072 |
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42,802 residents live across 17 ZIPs covering 529 sq mi, served by 17 distinct USPS-recognized cities.
Population moved from 42,051 to 42,802 from 2014 to 2024 — a +1.8% change. 8 ZIPs gained residents, 7 lost.
The county's wealthiest ZIP 03770 (Meriden, $153,750 median) and poorest ZIP 03603 (Charlestown, $56,731) are 20.3 miles apart — a 2.7× income gap across local geography.
Median home values vary 2.9× across this county — from $206,600 in 03743 (Claremont) to $594,400 in 03770 (Meriden).
Density varies 42× across the county — from 22 people/sq mi in 03284 (Springfield) to 937 in 03751 (Georges Mills).
Educational attainment ranges from 14.4% bachelor's+ in 03603 (Charlestown) to 59.4% in 03753 (Grantham) — the breadth of educational profiles across the area.
Within New Hampshire, this is the #9 most populous of 11 counties and ranks #7 for median household income .
Weighted by population, the typical household earns about $78,993 across the county — reflecting what a typical resident sees, not a simple ZIP average.
30.4% of adults age 25+ hold a bachelor's degree or higher (9,860 of 32,385 reporting).
14 Standard delivery, 3 PO Box only, 0 single-entity Unique ZIPs serve this county.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 03743 | Claremont | Standard | 13,704 | $59,625 | 61.8 | -1.4% |
| 03773 | Newport | Standard | 7,681 | $81,232 | 88.1 | 2.3% |
| 03603 | Charlestown | Standard | 5,238 | $56,731 | 45.1 | -1.7% |
| 03753 | Grantham | Standard | 3,509 | $106,285 | 27.5 | 18.2% |
| 03782 | Sunapee | Standard | 3,122 | $110,175 | 25.0 | 6.6% |
| 03781 | Plainfield | Standard | 1,918 | $109,659 | 52.2 | -0.8% |
| 03745 | Cornish | Standard | 1,816 | $91,821 | 48.0 | 28.8% |
| 03280 | Washington | Standard | 1,224 | $90,096 | 50.4 | 20.8% |
| 03752 | Goshen | Standard | 1,042 | $70,417 | 22.5 | 26.9% |
| 03605 | Lempster | Standard | 907 | $86,250 | 32.0 | -16.7% |
| 03284 | Springfield | Standard | 890 | $113,158 | 39.6 | -19.5% |
| 03770 | Meriden | Standard | 604 | $153,750 | 3.4 | 3.2% |
| 03751 | Georges Mills | PO Box | 397 | — | 0.4 | -32.0% |
| 03601 | Acworth | Standard | 382 | $81,250 | 16.3 | -29.0% |
| 03607 | South Acworth | Standard | 368 | $84,306 | 16.3 | 9.9% |
| 03754 | Guild | PO Box | — | — | 0.0 | — |
| 03746 | Cornish Flat | PO Box | — | — | 0.0 | — |