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zipcodes.pro — ZIP/03750

03750

ZIP 03750 is Etna, New Hampshire, in Grafton County; area code 603; Eastern time.

Type
Standard
Time zone
America/New_York
County
Grafton
Population
1,116
Coordinates
43.7210, -72.1852
☼ Live from 03750 — Etna, NH

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Where 03750 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 03750
  • 🔢 Type 03750 into a pocket calculator and turn it upside down: OSLEO — not quite a word, sorry.
  • ➕ As a number, 3,750 = 2 × 3 × 5 × 5 × 5 × 5. Its digits add up to 15, a total 1,657 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 111010100110
  • 🏠 Its numerical neighbours: 03749 (Enfield Center, NH, 11 mi away) and 03751 (Georges Mills, NH, 20 mi away).
  • 🔄 Backwards, 03750 becomes 05730 — and that is a real ZIP code: Belmont, VT, 38 miles away.
  • 👥 29 other ZIP codes are made of exactly the same digits (00735, 03057, 03570, 05037, 05073, 05730, …). The farthest-flung twin is 00735 in Ceiba, PR, 1,800 miles away.
  • 🧭 Farther north than 86% of all ZIP codes, and farther east than 94%.
  • 🎯1,380 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 03750 and you would come out at 43.72°S, 107.81°E — 923 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 27m of daylight. Shortest: 8h 55m.
  • 📏 At 15.8 square miles of land, 03750 is bigger than 34% of ZIP codes — room for about 12 Central Parks.
🌙 The sky over 03750 today
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🌋 Shake report
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Source: USGS.

People and housing

Population1,116This ZIP1,116
Households365This ZIP365
Housing units459This ZIP459
Median age40.7This ZIP40.7New Hampshire43.3US 38.9
Median household income$250,000+This ZIP$250,000+New Hampshire$99,031US $80,734
Median home value$881,000This ZIP$881,000New Hampshire$402,500US $332,700
Bachelor's degree or higher96.8%This ZIP96.8%
Mean commute21.0 minThis ZIP21.0 min
Population density70.7 / sq miThis ZIP70.7 / sq mi

Business and tax activity

Business establishments24This ZIP24
Employees147This ZIP147
Annual payroll$5,486,000This ZIP$5,486,000
Tax returns filed530This ZIP530
Total adjusted gross income$265,358,000This ZIP$265,358,000

Land area

Land area15.79 sq miThis ZIP15.79 sq mi
Water area0.15 sq miThis ZIP0.15 sq mi

ZIP codes near 03750

ZIPCityDistance
03755 Hanover, NH 2.4 mi
03769 Lyme Center, NH 5.5 mi
05043 East Thetford, VT 6.0 mi
03756 Lebanon, NH 6.4 mi
03766 Lebanon, NH 6.6 mi
05088 Wilder, VT 6.8 mi
05055 Norwich, VT 8.0 mi
03768 Lyme, NH 8.0 mi
03784 West Lebanon, NH 8.3 mi
05054 North Thetford, VT 8.4 mi

Find every ZIP code within 10 miles of 03750 →

Questions about this ZIP code

Where is ZIP code 03750?

03750 is in Etna, New Hampshire, in Grafton County, part of the Lebanon-Claremont, NH-VT micropolitan area. Its published point location is 43.7210, -72.1852.

What county is 03750 in?

03750 lies in Grafton County.

What area code is 03750?

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

What time zone is 03750 in?

03750 uses America/New_York.

How many people live in 03750?

About 1,116 people live in ZIP code 03750, in 365 households, at 70.7 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 03750?

$250,000+ a year, against $99,031 across New Hampshire.

What ZIP codes are near 03750?

The closest are 03755 (2.4 mi), 03769 (5.5 mi), 05043 (6 mi), 03756 (6.4 mi) and 03766 (6.6 mi).

Is 03750 a PO Box ZIP code?

03750 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “03750 ZIP Code — Etna, New Hampshire (Grafton County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/03750

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