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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/03051

03051

ZIP 03051 is Hudson, New Hampshire, in Hillsborough County; area code 603; Eastern time.

Type
Standard
Time zone
America/New_York
County
Hillsborough
Population
25,557
Coordinates
42.7605, -71.4094
☼ Live from 03051 — Hudson, NH

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Where 03051 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 03051
  • 🔢 Type 03051 into a pocket calculator and turn it upside down: ISOEO — not quite a word, sorry.
  • ➕ As a number, 3,051 = 3 × 3 × 3 × 113. Its digits add up to 9, a total 375 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101111101011
  • 🏠 Its numerical neighbours: 03049 (Hollis, NH, 9 mi away) and 03052 (Litchfield, NH, 7 mi away).
  • 🔄 Backwards, 03051 becomes 15030 — and that is a real ZIP code: Creighton, PA, 457 miles away.
  • 👥 31 other ZIP codes are made of exactly the same digits (01035, 01053, 01350, 01503, 03105, 05031, …). The farthest-flung twin is 51030 in Lawton, IA, 1,255 miles away.
  • 🧭 Farther north than 81% of all ZIP codes, and farther east than 95%.
  • 🎯1,419 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 03051 and you would come out at 42.76°S, 108.59°E — 846 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 20m of daylight. Shortest: 9h 02m.
  • 📏 At 28.3 square miles of land, 03051 is bigger than 44% of ZIP codes — room for about 21 Central Parks.
🌙 The sky over 03051 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population25,557This ZIP25,557
Households9,930This ZIP9,930
Housing units10,217This ZIP10,217
Median age45.7This ZIP45.7New Hampshire43.3US 38.9
Median household income$124,213This ZIP$124,213New Hampshire$99,031US $80,734
Median home value$438,900This ZIP$438,900New Hampshire$402,500US $332,700
Median gross rent$1,735This ZIP$1,735New Hampshire$1,491US $1,413
Bachelor's degree or higher34.2%This ZIP34.2%
Mean commute31.4 minThis ZIP31.4 min
Population density903.6 / sq miThis ZIP903.6 / sq mi

Business and tax activity

Business establishments648This ZIP648
Employees11,545This ZIP11,545
Annual payroll$843,884,000This ZIP$843,884,000
Tax returns filed14,000This ZIP14,000
Total adjusted gross income$1,361,400,000This ZIP$1,361,400,000

Land area

Land area28.28 sq miThis ZIP28.28 sq mi
Water area0.98 sq miThis ZIP0.98 sq mi

Other place names in 03051

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

ZIP codes near 03051

ZIPCityDistance
03060 Nashua, NH 2.8 mi
03061 Nashua, NH 3.0 mi
03064 Nashua, NH 3.6 mi
03076 Pelham, NH 4.2 mi
03062 Nashua, NH 5.4 mi
03063 Nashua, NH 5.7 mi
03087 Windham, NH 6.4 mi
01879 Tyngsboro, MA 6.5 mi
03052 Litchfield, NH 6.6 mi
01827 Dunstable, MA 7.4 mi

Find every ZIP code within 10 miles of 03051 →

Questions about this ZIP code

Where is ZIP code 03051?

03051 is in Hudson, New Hampshire, in Hillsborough County, part of the Manchester-Nashua, NH metropolitan area. Its published point location is 42.7605, -71.4094.

What county is 03051 in?

03051 lies in Hillsborough County.

What area code is 03051?

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

What time zone is 03051 in?

03051 uses America/New_York.

How many people live in 03051?

About 25,557 people live in ZIP code 03051, in 9,930 households, at 903.6 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 03051?

$124,213 a year, against $99,031 across New Hampshire.

What ZIP codes are near 03051?

The closest are 03060 (2.8 mi), 03061 (3 mi), 03064 (3.6 mi), 03076 (4.2 mi) and 03062 (5.4 mi).

Is 03051 a PO Box ZIP code?

03051 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “03051 ZIP Code — Hudson, New Hampshire (Hillsborough County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/03051

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curl https://zipcodes.pro/zip/03051.json

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