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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/03595

03595

ZIP 03595 is Twin Mountain, New Hampshire, in Coos County; area code 603; Eastern time.

Type
Standard
Time zone
America/New_York
County
Coos
Metro area
none
Population
648
Coordinates
44.3053, -71.4974
☼ Live from 03595 — Twin Mountain, NH

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Where 03595 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 03595
  • 🔢 Type 03595 into a pocket calculator and turn it upside down: SGSEO — not quite a word, sorry.
  • ➕ As a number, 3,595 = 5 × 719. Its digits add up to 22, a total 2,607 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 111000001011
  • 🏠 Its numerical neighbours: 03593 (Randolph, NH, 10 mi away) and 03597 (West Stewartstown, NH, 31 mi away).
  • 🔄 Backwards, 03595 becomes 59530 — and that is a real ZIP code: Inverness, MT, 1,868 miles away.
  • 👥 27 other ZIP codes are made of exactly the same digits (05359, 09355, 30559, 35905, 35950, 39505, …). The farthest-flung twin is 09355 in APO AE, a military post office, 3,506 miles away.
  • 🧭 Farther north than 88% 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 03595 and you would come out at 44.31°S, 108.50°E — 942 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 32m of daylight. Shortest: 8h 51m.
  • 📏 At 36.8 square miles of land, 03595 is bigger than 51% of ZIP codes — room for about 28 Central Parks.
🌙 The sky over 03595 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population648This ZIP648
Households366This ZIP366
Housing units614This ZIP614
Median age62.3This ZIP62.3New Hampshire43.3US 38.9
Median household income$64,762This ZIP$64,762New Hampshire$99,031US $80,734
Median home value$258,900This ZIP$258,900New Hampshire$402,500US $332,700
Median gross rent$1,078This ZIP$1,078New Hampshire$1,491US $1,413
Bachelor's degree or higher34.0%This ZIP34.0%
Mean commute21.6 minThis ZIP21.6 min
Population density17.6 / sq miThis ZIP17.6 / sq mi

Business and tax activity

Business establishments22This ZIP22
Employees128This ZIP128
Annual payroll$5,594,000This ZIP$5,594,000

Land area

Land area36.84 sq miThis ZIP36.84 sq mi
Water area0.00 sq miThis ZIP0.00 sq mi

ZIP codes near 03595

ZIPCityDistance
03575 Bretton Woods, NH 4.7 mi
03574 Bethlehem, NH 6.3 mi
03583 Jefferson, NH 7.0 mi
03598 Whitefield, NH 8.3 mi
03593 Randolph, NH 9.8 mi
05904 Gilman, VT 12.9 mi
03584 Lancaster, NH 13.0 mi
03580 Franconia, NH 13.8 mi
03561 Littleton, NH 15.0 mi
03251 Lincoln, NH 16.0 mi

Find every ZIP code within 10 miles of 03595 →

Questions about this ZIP code

Where is ZIP code 03595?

03595 is in Twin Mountain, New Hampshire, in Coos County. Its published point location is 44.3053, -71.4974.

What county is 03595 in?

03595 lies in Coos County.

What area code is 03595?

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

What time zone is 03595 in?

03595 uses America/New_York.

How many people live in 03595?

About 648 people live in ZIP code 03595, in 366 households, at 17.6 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 03595?

$64,762 a year, against $99,031 across New Hampshire.

What ZIP codes are near 03595?

The closest are 03575 (4.7 mi), 03574 (6.3 mi), 03583 (7 mi), 03598 (8.3 mi) and 03593 (9.8 mi).

Is 03595 a PO Box ZIP code?

03595 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “03595 ZIP Code — Twin Mountain, New Hampshire (Coos County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/03595

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