| ZIP Codes: | 27 ZIP Codes (24 Standard, 2 PO Box, 1 Unique) [See All] |
| Area Code: | 603 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:13:09 PM |
| Population: | 78,089 [See All] |
| FIPS: | 33005 |
| CBSA: | Keene, NH |
| Land Area: | 749 sq mi |
| Water Area: | 22 sq mi |
| Coordinates: | 42.9374, -72.2796 |
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78,089 residents live across 27 ZIPs covering 749 sq mi, served by 26 distinct USPS-recognized cities.
Population moved from 77,363 to 78,089 from 2014 to 2024 — a +0.9% change. 13 ZIPs gained residents, 12 lost.
The county's wealthiest ZIP 03462 (Spofford, $115,313 median) and poorest ZIP 03441 (Ashuelot, $53,816) are 8.1 miles apart — a 2.1× income gap across local geography.
Median home values vary 2.1× across this county — from $200,700 in 03451 (Hinsdale) to $430,500 in 03450 (Harrisville).
Density varies 21× across the county — from 20 people/sq mi in 03464 (Stoddard) to 425 in 03431 (Keene).
Educational attainment ranges from 12.6% bachelor's+ in 03451 (Hinsdale) to 60.0% in 03457 (Nelson) — the breadth of educational profiles across the area.
Within New Hampshire, this is the #6 most populous of 11 counties and ranks #9 for median household income .
Hosts 1 single-entity Unique ZIP: 03435Keene State College .
Weighted by population, the typical household earns about $86,081 across the county — reflecting what a typical resident sees, not a simple ZIP average.
35.4% of adults age 25+ hold a bachelor's degree or higher (19,956 of 56,383 reporting).
24 Standard delivery, 2 PO Box only, 1 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 03431 | Keene | Standard | 25,065 | $79,541 | 58.9 | -1.0% |
| 03446 | Swanzey | Standard | 6,588 | $85,484 | 44.7 | 5.3% |
| 03461 | Rindge | Standard | 6,497 | $102,679 | 39.8 | 9.0% |
| 03452 | Jaffrey | Standard | 5,448 | $92,330 | 42.1 | 0.6% |
| 03470 | Winchester | Standard | 4,933 | $79,028 | 79.1 | 3.2% |
| 03451 | Hinsdale | Standard | 3,997 | $69,191 | 32.3 | -0.9% |
| 03608 | Walpole | Standard | 3,167 | $88,224 | 38.6 | 45.5% |
| 03602 | Alstead | Standard | 2,381 | $70,455 | 62.3 | -11.5% |
| 03447 | Fitzwilliam | Standard | 2,278 | $100,735 | 35.9 | -6.8% |
| 03455 | Marlborough | Standard | 2,242 | $69,395 | 24.0 | 19.9% |
| 03467 | Westmoreland | Standard | 2,237 | $104,444 | 35.5 | 10.3% |
| 03465 | Troy | Standard | 2,005 | $88,871 | 17.9 | -11.7% |
| 03462 | Spofford | Standard | 1,726 | $115,313 | 20.8 | -4.1% |
| 03444 | Dublin | Standard | 1,666 | $104,773 | 28.8 | 1.5% |
| 03466 | West Chesterfield | Standard | 1,315 | $83,281 | 15.6 | 25.0% |
| 03464 | Stoddard | Standard | 902 | $93,625 | 44.9 | -16.9% |
| 03450 | Harrisville | Standard | 885 | $103,036 | 19.5 | -2.9% |
| 03456 | Marlow | Standard | 855 | $110,455 | 25.7 | 13.5% |
| 03457 | Nelson | Standard | 802 | $100,625 | 26.7 | 24.5% |
| 03448 | Gilsum | Standard | 716 | $80,417 | 16.4 | 17.4% |
| 03445 | Sullivan | Standard | 687 | $106,667 | 23.6 | -7.8% |
| 03441 | Ashuelot | Standard | 593 | $53,816 | 4.0 | 3.7% |
| 03443 | Chesterfield | Standard | 581 | — | 10.8 | -26.2% |
| 03609 | North Walpole | Standard | 523 | $72,391 | 1.2 | -51.7% |
| 03604 | Drewsville | PO Box | 0 | — | 0.0 | -100.0% |
| 03435 | Keene | Unique | — | — | 0.0 | — |
| 03469 | West Swanzey | PO Box | — | — | 0.0 | — |