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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/03450

03450

ZIP 03450 is Harrisville, New Hampshire, in Cheshire County; area code 603; Eastern time.

Type
Standard
Time zone
America/New_York
County
Cheshire
Metro area
Keene, NH
Population
885
Coordinates
42.9485, -72.0690
☼ Live from 03450 — Harrisville, NH

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Where 03450 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 03450
  • 🔢 Type 03450 into a pocket calculator and turn it upside down: OShEO — not quite a word, sorry.
  • ➕ As a number, 3,450 = 2 × 3 × 5 × 5 × 23. Its digits add up to 12, a total 940 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 110101111010
  • 🏠 Its numerical neighbours: 03449 (Hancock, NH, 4 mi away) and 03451 (Hinsdale, NH, 24 mi away).
  • 🔄 Backwards, 03450 becomes 05430, which is not a ZIP code at all.
  • 👥 32 other ZIP codes are made of exactly the same digits (03045, 03054, 04350, 04530, 05034, 05043, …). The farthest-flung twin is 34005 in APO AA, a military post office, 2,373 miles away.
  • 🧭 Farther north than 82% of all ZIP codes, and farther east than 94%.
  • 🎯1,385 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 03450 and you would come out at 42.95°S, 107.93°E — 875 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 21m of daylight. Shortest: 9h 00m.
  • 📏 At 18.6 square miles of land, 03450 is bigger than 36% of ZIP codes — room for about 14 Central Parks.
🌙 The sky over 03450 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population885This ZIP885
Households387This ZIP387
Housing units646This ZIP646
Median age58.9This ZIP58.9New Hampshire43.3US 38.9
Median household income$103,036This ZIP$103,036New Hampshire$99,031US $80,734
Median home value$430,500This ZIP$430,500New Hampshire$402,500US $332,700
Median gross rent$1,611This ZIP$1,611New Hampshire$1,491US $1,413
Bachelor's degree or higher54.8%This ZIP54.8%
Mean commute26.9 minThis ZIP26.9 min
Population density47.7 / sq miThis ZIP47.7 / sq mi

Business and tax activity

Business establishments18This ZIP18
Employees120This ZIP120
Annual payroll$5,330,000This ZIP$5,330,000
Tax returns filed530This ZIP530
Total adjusted gross income$59,972,000This ZIP$59,972,000

Land area

Land area18.56 sq miThis ZIP18.56 sq mi
Water area1.58 sq miThis ZIP1.58 sq mi

ZIP codes near 03450

ZIPCityDistance
03444 Dublin, NH 4.1 mi
03449 Hancock, NH 4.2 mi
03457 Nelson, NH 4.4 mi
03455 Marlborough, NH 6.2 mi
03468 West Peterborough, NH 7.9 mi
03452 Jaffrey, NH 8.3 mi
03458 Peterborough, NH 8.6 mi
03445 Sullivan, NH 8.9 mi
03440 Antrim, NH 9.2 mi
03464 Stoddard, NH 9.4 mi

Find every ZIP code within 10 miles of 03450 →

Questions about this ZIP code

Where is ZIP code 03450?

03450 is in Harrisville, New Hampshire, in Cheshire County, part of the Keene, NH micropolitan area. Its published point location is 42.9485, -72.0690.

What county is 03450 in?

03450 lies in Cheshire County.

What area code is 03450?

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

What time zone is 03450 in?

03450 uses America/New_York.

How many people live in 03450?

About 885 people live in ZIP code 03450, in 387 households, at 47.7 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 03450?

$103,036 a year, against $99,031 across New Hampshire.

What ZIP codes are near 03450?

The closest are 03444 (4.1 mi), 03449 (4.2 mi), 03457 (4.4 mi), 03455 (6.2 mi) and 03468 (7.9 mi).

Is 03450 a PO Box ZIP code?

03450 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “03450 ZIP Code — Harrisville, New Hampshire (Cheshire County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/03450

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