ZIP code 03031
Where is ZIP code 03031?
Amherst, New Hampshire
Hillsborough County · Standard ZIP code
ZIP code 03031 belongs to Amherst, New Hampshire in Hillsborough County. 03031 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 11,849 people live in the 03031 area, where the median household income is $153,125. The closest ZIP codes are 03055 (Milford, 3.3 mi southwest), 03057 (Mont Vernon, 4.5 mi northwest) and 03054 (Merrimack, 4.8 mi east).
| ZIP code | 03031 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Amherst |
| State | New Hampshire (NH) |
| County | Hillsborough County |
| Time zone | Eastern Time · now |
| Area code | 603 |
| Coordinates | 42.8569, -71.6075 map |
| 3-digit prefix | 030 |
Population and income in 03031
| Population | 11,849 · higher than 87% of New Hampshire ZIP codes |
|---|---|
| People per square mile | 349 · higher than 78% of New Hampshire ZIP codes |
| Median age | 45.9 years · lower than 55% of New Hampshire ZIP codes |
| Men / women | 49% / 52% |
| Median household income | $153,125 · higher than 91% of New Hampshire ZIP codes |
| Income per person | $74,400 |
| Below the poverty line | 4.4% |
| Bachelor’s degree or higher | 66% of adults 25+ |
| Median home value | $537,300 · higher than 86% of New Hampshire ZIP codes |
| Median rent | $1,462 a month |
| Housing units | 4,578 |
| Households | 4,563 (2.6 people on average) |
| Owners / renters | 92% / 8.1% |
| Land area | 33.92 sq mi (plus 0.51 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 03031. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 03031
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 03055 | Milford, NH | 3.3 mi SW | Standard |
| 03057 | Mont Vernon, NH | 4.5 mi NW | Standard |
| 03054 | Merrimack, NH | 4.8 mi E | Standard |
| 03110 | Bedford, NH | 7.2 mi NE | Standard |
| 03086 | Wilton, NH | 7.6 mi W | Standard |
| 03063 | Nashua, NH | 7.6 mi SE | Standard |
| 03049 | Hollis, NH | 7.6 mi S | Standard |
| 03052 | Litchfield, NH | 7.8 mi E | Standard |
| 03064 | Nashua, NH | 8.6 mi SE | Standard |
| 03033 | Brookline, NH | 8.7 mi S | Standard |
| 03082 | Lyndeborough, NH | 8.9 mi W | Standard |
| 03070 | New Boston, NH | 8.9 mi NW | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 03031 or measure the distance to another ZIP code.
How to address mail to 03031
123 MAIN ST
AMHERST NH 03031
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (03031-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 03031?
- 03031 is a Amherst, New Hampshire ZIP code.
- What county is 03031 in?
- ZIP code 03031 is in Hillsborough County, New Hampshire.
- What time zone is ZIP code 03031 in?
- 03031 is in the Eastern Time zone (America/New_York).
- What area code is 03031?
- Phone numbers in ZIP code 03031 use area code 603.
- What is the population of ZIP code 03031?
- About 11,849 people live in ZIP code 03031, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 03031?
- The median household income in 03031 is $153,125 a year, higher than 91% of New Hampshire ZIP codes.
- What ZIP codes are near 03031?
- The nearest ZIP codes to 03031 are 03055 (Milford, 3.3 miles), 03057 (Mont Vernon, 4.5 miles), 03054 (Merrimack, 4.8 miles) and 03110 (Bedford, 7.2 miles).