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ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/03101

03101

ZIP 03101 is in Manchester, New Hampshire, in Hillsborough County; area code 603; Eastern time. Manchester has 8 ZIP codes in all.

Type
Standard
Time zone
America/New_York
County
Hillsborough
Population
3,201
Coordinates
42.9890, -71.4661
☼ Live from 03101 — Manchester, NH

Weather right now

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Local time: —

Where 03101 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 03101
  • 🔢 Type 03101 into a pocket calculator and turn it upside down: IOIEO — not quite a word, sorry.
  • ➕ As a number, 3,101 = 7 × 443. Its digits add up to 5, a total 55 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 110000011101
  • 🏠 Its numerical neighbours: 03087 (Windham, NH, 15 mi away) and 03102 (Manchester, NH, 2 mi away).
  • 🔄 Backwards, 03101 becomes 10130 — and that is a real ZIP code: New York, NY, 200 miles away.
  • 👥 18 other ZIP codes are made of exactly the same digits (01013, 01031, 01103, 01301, 03110, 10013, …). The farthest-flung twin is 31010 in Cordele, GA, 1,018 miles away.
  • 🧭 Farther north than 82% of all ZIP codes, and farther east than 95%.
  • 🎯1,416 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 03101 and you would come out at 42.99°S, 108.53°E — 861 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 22m of daylight. Shortest: 9h 00m.
  • 📏 At 0.765 square miles of land, 03101 is bigger than 7% of ZIP codes — about 370 football fields.
🌙 The sky over 03101 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population3,201This ZIP3,201
Households1,806This ZIP1,806
Housing units2,041This ZIP2,041
Median age33.8This ZIP33.8New Hampshire43.3US 38.9
Median household income$84,434This ZIP$84,434New Hampshire$99,031US $80,734
Median home value$429,300This ZIP$429,300New Hampshire$402,500US $332,700
Median gross rent$1,530This ZIP$1,530New Hampshire$1,491US $1,413
Bachelor's degree or higher46.7%This ZIP46.7%
Mean commute27.3 minThis ZIP27.3 min
Population density4,184.3 / sq miThis ZIP4,184.3 / sq mi

Business and tax activity

Business establishments760This ZIP760
Employees15,378This ZIP15,378
Annual payroll$1,238,328,000This ZIP$1,238,328,000
Tax returns filed2,030This ZIP2,030
Total adjusted gross income$212,985,000This ZIP$212,985,000

Land area

Land area0.77 sq miThis ZIP0.77 sq mi
Water area0.12 sq miThis ZIP0.12 sq mi

Other place names in 03101

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

ZIP codes near 03101

ZIPCityDistance
03105 Manchester, NH 0.7 mi
03108 Manchester, NH 0.7 mi
03111 Manchester, NH 0.7 mi
03104 Manchester, NH 1.9 mi
03102 Manchester, NH 2.0 mi
03103 Manchester, NH 2.6 mi
03109 Manchester, NH 3.8 mi
03110 Bedford, NH 5.1 mi
03032 Auburn, NH 5.2 mi
03045 Goffstown, NH 5.4 mi

Find every ZIP code within 10 miles of 03101 →

Questions about this ZIP code

Where is ZIP code 03101?

03101 is in Manchester, New Hampshire, in Hillsborough County, part of the Manchester-Nashua, NH metropolitan area. Its published point location is 42.9890, -71.4661.

What county is 03101 in?

03101 lies in Hillsborough County.

What area code is 03101?

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

What time zone is 03101 in?

03101 uses America/New_York.

How many people live in 03101?

About 3,201 people live in ZIP code 03101, in 1,806 households, at 4,184.3 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 03101?

$84,434 a year, against $99,031 across New Hampshire.

What ZIP codes are near 03101?

The closest are 03105 (0.7 mi), 03108 (0.7 mi), 03111 (0.7 mi), 03104 (1.9 mi) and 03102 (2 mi).

Is 03101 a PO Box ZIP code?

03101 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “03101 ZIP Code — Manchester, New Hampshire (Hillsborough County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/03101

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