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zipcodes.pro — ZIP/03031

03031

ZIP 03031 is Amherst, New Hampshire, in Hillsborough County; area code 603; Eastern time.

Type
Standard
Time zone
America/New_York
County
Hillsborough
Population
11,849
Coordinates
42.8748, -71.6005
☼ Live from 03031 — Amherst, NH

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Where 03031 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 03031
  • 🔢 Type 03031 into a pocket calculator and turn it upside down: IEOEO — not quite a word, sorry.
  • ➕ As a number, 3,031 = 7 × 433. Its digits add up to 7, a total 150 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101111010111
  • 🏠 Its numerical neighbours: 02940 (Providence, RI, 73 mi away) and 03032 (Auburn, NH, 15 mi away).
  • 🔄 Backwards, 03031 becomes 13030 — and that is a real ZIP code: Bridgeport, NY, 221 miles away.
  • 👥 16 other ZIP codes are made of exactly the same digits (01033, 01330, 03103, 03301, 10033, 10303, …). The farthest-flung twin is 33001 in Long Key, FL, 1,352 miles away.
  • 🧭 Farther north than 82% of all ZIP codes, and farther east than 95%.
  • 🎯1,409 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 03031 and you would come out at 42.87°S, 108.40°E — 858 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 21m of daylight. Shortest: 9h 01m.
  • 📏 At 33.9 square miles of land, 03031 is bigger than 49% of ZIP codes — room for about 26 Central Parks.
🌙 The sky over 03031 today
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🌋 Shake report
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Source: USGS.

People and housing

Population11,849This ZIP11,849
Households4,563This ZIP4,563
Housing units4,578This ZIP4,578
Median age45.9This ZIP45.9New Hampshire43.3US 38.9
Median household income$153,125This ZIP$153,125New Hampshire$99,031US $80,734
Median home value$537,300This ZIP$537,300New Hampshire$402,500US $332,700
Median gross rent$1,462This ZIP$1,462New Hampshire$1,491US $1,413
Bachelor's degree or higher65.8%This ZIP65.8%
Mean commute32.5 minThis ZIP32.5 min
Population density349.4 / sq miThis ZIP349.4 / sq mi

Business and tax activity

Business establishments408This ZIP408
Employees4,379This ZIP4,379
Annual payroll$265,193,000This ZIP$265,193,000
Tax returns filed6,030This ZIP6,030
Total adjusted gross income$994,894,000This ZIP$994,894,000

Land area

Land area33.92 sq miThis ZIP33.92 sq mi
Water area0.51 sq miThis ZIP0.51 sq mi

Other place names in 03031

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 03031

ZIPCityDistance
03054 Merrimack, NH 4.4 mi
03110 Bedford, NH 5.3 mi
03057 Mont Vernon, NH 5.3 mi
03055 Milford, NH 5.4 mi
03052 Litchfield, NH 7.0 mi
03063 Nashua, NH 7.6 mi
03070 New Boston, NH 8.3 mi
03086 Wilton, NH 8.6 mi
03082 Lyndeborough, NH 8.6 mi
03049 Hollis, NH 8.7 mi

Find every ZIP code within 10 miles of 03031 →

Questions about this ZIP code

Where is ZIP code 03031?

03031 is in Amherst, New Hampshire, in Hillsborough County, part of the Manchester-Nashua, NH metropolitan area. Its published point location is 42.8748, -71.6005.

What county is 03031 in?

03031 lies in Hillsborough County.

What area code is 03031?

Amherst uses area code 603, from NANPA's telephone records.

What time zone is 03031 in?

03031 uses America/New_York.

How many people live in 03031?

About 11,849 people live in ZIP code 03031, in 4,563 households, at 349.4 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 03031?

$153,125 a year, against $99,031 across New Hampshire.

What ZIP codes are near 03031?

The closest are 03054 (4.4 mi), 03110 (5.3 mi), 03057 (5.3 mi), 03055 (5.4 mi) and 03052 (7 mi).

Is 03031 a PO Box ZIP code?

03031 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “03031 ZIP Code — Amherst, New Hampshire (Hillsborough County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/03031

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