ZIP code 03431
Where is ZIP code 03431?
Keene, New Hampshire
Cheshire County · Standard ZIP code
ZIP code 03431 belongs to Keene, New Hampshire in Cheshire County. 03431 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Eastern Time zone and uses area code 603. About 25,065 people live in the 03431 area, where the median household income is $79,541. The closest ZIP codes are 03435 (Keene, 2.2 mi southeast), 03445 (Sullivan, 5.3 mi northeast) and 03448 (Gilsum, 5.5 mi north).
| ZIP code | 03431 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Keene |
| Also accepted | North Swanzey, Roxbury, Surry |
| State | New Hampshire (NH) |
| County | Cheshire County |
| Time zone | Eastern Time · now |
| Area code | 603 |
| Coordinates | 42.9627, -72.2955 map |
| 3-digit prefix | 034 |
Population and income in 03431
| Population | 25,065 · higher than 95% of New Hampshire ZIP codes |
|---|---|
| People per square mile | 418 · higher than 82% of New Hampshire ZIP codes |
| Median age | 38.4 years · lower than 90% of New Hampshire ZIP codes |
| Men / women | 49% / 51% |
| Median household income | $79,541 · lower than 77% of New Hampshire ZIP codes |
| Income per person | $41,070 |
| Below the poverty line | 9.8% |
| Bachelor’s degree or higher | 42% of adults 25+ |
| Median home value | $255,500 · lower than 88% of New Hampshire ZIP codes |
| Median rent | $1,343 a month |
| Housing units | 11,503 |
| Households | 10,228 (2.21 people on average) |
| Owners / renters | 56% / 44% |
| Land area | 59.96 sq mi (plus 0.77 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 03431. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 03431
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 03435 | Keene, NH | 2.2 mi SE | Unique |
| 03445 | Sullivan, NH | 5.3 mi NE | Standard |
| 03448 | Gilsum, NH | 5.5 mi N | Standard |
| 03469 | West Swanzey, NH | 6.2 mi S | PO Box only |
| 03455 | Marlborough, NH | 6.5 mi SE | Standard |
| 03462 | Spofford, NH | 6.8 mi SW | Standard |
| 03467 | Westmoreland, NH | 7.1 mi W | Standard |
| 03457 | Nelson, NH | 8.5 mi E | Standard |
| 03446 | Swanzey, NH | 8.6 mi S | Standard |
| 03443 | Chesterfield, NH | 9.7 mi SW | Standard |
| 03608 | Walpole, NH | 9.9 mi NW | Standard |
| 03450 | Harrisville, NH | 10.2 mi E | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 03431 or measure the distance to another ZIP code.
How to address mail to 03431
123 MAIN ST
KEENE NH 03431
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts NORTH SWANZEY, ROXBURY and SURRY as the city name for 03431. Avoid N Swanzey: USPS doesn’t recognize it as the city for this ZIP code. Adding the 4-digit ZIP+4 code (03431-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Keene, NH
All Keene ZIP codes with population and income →
Questions
- What city is ZIP code 03431?
- 03431 is a Keene, New Hampshire ZIP code. North Swanzey, Roxbury and Surry are also accepted as the city name.
- What county is 03431 in?
- ZIP code 03431 is in Cheshire County, New Hampshire.
- What time zone is ZIP code 03431 in?
- 03431 is in the Eastern Time zone (America/New_York).
- What area code is 03431?
- Phone numbers in ZIP code 03431 use area code 603.
- What is the population of ZIP code 03431?
- About 25,065 people live in ZIP code 03431, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 03431?
- The median household income in 03431 is $79,541 a year, lower than 77% of New Hampshire ZIP codes.
- What ZIP codes are near 03431?
- The nearest ZIP codes to 03431 are 03435 (Keene, 2.2 miles), 03445 (Sullivan, 5.3 miles), 03448 (Gilsum, 5.5 miles) and 03469 (West Swanzey, 6.2 miles).