ZIP code 03231
Where is ZIP code 03231?
East Andover, New Hampshire
Merrimack County · PO Box only ZIP code
ZIP code 03231 belongs to East Andover, New Hampshire in Merrimack County. 03231 is a PO Box only ZIP code: it is used for post office boxes at the East Andover post office, not for street addresses. It is in the Eastern Time zone and uses area code 603. About 89 people live in the 03231 area. The closest ZIP codes are 03216 (Andover, 2.8 mi southwest), 03268 (Salisbury, 4.2 mi southeast) and 03243 (Hill, 4.8 mi north).
| ZIP code | 03231 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | East Andover |
| State | New Hampshire (NH) |
| County | Merrimack County |
| Time zone | Eastern Time · now |
| Area code | 603 |
| Coordinates | 43.4595, -71.7476 map |
| 3-digit prefix | 032 |
Population and income in 03231
| Population | 89 · lower than 98% of New Hampshire ZIP codes |
|---|---|
| People per square mile | 311 · higher than 77% of New Hampshire ZIP codes |
| Median age | 64.5 years · higher than 97% of New Hampshire ZIP codes |
| Men / women | 34% / 66% |
| Income per person | $68,556 |
| Below the poverty line | 3.4% |
| Bachelor’s degree or higher | 75% of adults 25+ |
| Median home value | $604,800 · higher than 92% of New Hampshire ZIP codes |
| Housing units | 92 |
| Households | 58 (1.53 people on average) |
| Owners / renters | 62% / 38% |
| Land area | 0.29 sq mi (plus 0.33 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 03231. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 03231
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 03216 | Andover, NH | 2.8 mi SW | Standard |
| 03268 | Salisbury, NH | 4.2 mi SE | Standard |
| 03243 | Hill, NH | 4.8 mi N | Standard |
| 03235 | Franklin, NH | 5.1 mi E | Standard |
| 03230 | Danbury, NH | 7.1 mi NW | Standard |
| 03287 | Wilmot, NH | 8.5 mi W | Standard |
| 03276 | Tilton, NH | 8.5 mi E | Standard |
| 03269 | Sanbornton, NH | 9.7 mi NE | Standard |
| 03233 | Elkins, NH | 9.9 mi W | Standard |
| 03222 | Bristol, NH | 10.5 mi N | Standard |
| 03252 | Lochmere, NH | 10.6 mi E | PO Box only |
| 03302 | Concord, NH | 11.2 mi S | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 03231 or measure the distance to another ZIP code.
How to address mail to 03231
PO BOX 123
EAST ANDOVER NH 03231
Put the city, the two-letter state code and the ZIP code on the last line. Avoid E Andover: USPS doesn’t recognize it as the city for this ZIP code. Adding the 4-digit ZIP+4 code (03231-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 03231?
- 03231 is a East Andover, New Hampshire ZIP code.
- What county is 03231 in?
- ZIP code 03231 is in Merrimack County, New Hampshire.
- What time zone is ZIP code 03231 in?
- 03231 is in the Eastern Time zone (America/New_York).
- What area code is 03231?
- Phone numbers in ZIP code 03231 use area code 603.
- What is the population of ZIP code 03231?
- About 89 people live in ZIP code 03231, according to the Census Bureau’s American Community Survey (2020–2024).
- Can I use 03231 for a street address?
- No. 03231 is only for PO Boxes. Street addresses in East Andover use another ZIP code.
- What ZIP codes are near 03231?
- The nearest ZIP codes to 03231 are 03216 (Andover, 2.8 miles), 03268 (Salisbury, 4.2 miles), 03243 (Hill, 4.8 miles) and 03235 (Franklin, 5.1 miles).