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zipcodes.pro — ZIP/03840

03840

ZIP 03840 is Greenland, New Hampshire, in Rockingham County; area code 603; Eastern time.

Type
Standard
Time zone
America/New_York
County
Rockingham
Population
4,106
Coordinates
43.0397, -70.8456
☼ Live from 03840 — Greenland, NH

Weather right now

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Local time: —

Where 03840 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 03840
  • 🔢 Type 03840 into a pocket calculator and turn it upside down: OhBEO — not quite a word, sorry.
  • ➕ As a number, 3,840 = 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 5. Its digits add up to 15, a total 1,657 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 111100000000
  • 🏠 Its numerical neighbours: 03839 (Rochester, NH, 17 mi away) and 03841 (Hampstead, NH, 20 mi away).
  • 🔄 Backwards, 03840 becomes 04830, which is not a ZIP code at all.
  • 👥 26 other ZIP codes are made of exactly the same digits (03048, 03084, 03804, 04038, 04083, 08034, …). The farthest-flung twin is 34008 in APO AA, a military post office, 2,393 miles away.
  • 🧭 Farther north than 83% of all ZIP codes, and farther east than 96%.
  • 🎯1,447 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 03840 and you would come out at 43.04°S, 109.15°E — 849 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 22m of daylight. Shortest: 9h 00m.
  • 📏 At 10.5 square miles of land, 03840 is bigger than 28% of ZIP codes — room for about 8.0 Central Parks.
🌙 The sky over 03840 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population4,106This ZIP4,106
Households1,635This ZIP1,635
Housing units1,702This ZIP1,702
Median age48.4This ZIP48.4New Hampshire43.3US 38.9
Median household income$162,837This ZIP$162,837New Hampshire$99,031US $80,734
Median home value$662,800This ZIP$662,800New Hampshire$402,500US $332,700
Median gross rent$2,331This ZIP$2,331New Hampshire$1,491US $1,413
Bachelor's degree or higher59.6%This ZIP59.6%
Mean commute20.6 minThis ZIP20.6 min
Population density391.6 / sq miThis ZIP391.6 / sq mi

Business and tax activity

Business establishments158This ZIP158
Employees1,955This ZIP1,955
Annual payroll$130,613,000This ZIP$130,613,000
Tax returns filed2,310This ZIP2,310
Total adjusted gross income$386,850,000This ZIP$386,850,000

Land area

Land area10.48 sq miThis ZIP10.48 sq mi
Water area2.84 sq miThis ZIP2.84 sq mi

ZIP codes near 03840

ZIPCityDistance
03801 Portsmouth, NH 3.2 mi
03885 Stratham, NH 3.3 mi
03862 North Hampton, NH 4.2 mi
03870 Rye, NH 4.5 mi
03802 Portsmouth, NH 4.7 mi
03803 Portsmouth, NH 4.7 mi
03804 Portsmouth, NH 4.7 mi
03871 Rye Beach, NH 5.3 mi
03857 Newmarket, NH 5.6 mi
03856 Newfields, NH 6.2 mi

Find every ZIP code within 10 miles of 03840 →

Questions about this ZIP code

Where is ZIP code 03840?

03840 is in Greenland, New Hampshire, in Rockingham County, part of the Boston-Cambridge-Newton, MA-NH metropolitan area. Its published point location is 43.0397, -70.8456.

What county is 03840 in?

03840 lies in Rockingham County.

What area code is 03840?

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

What time zone is 03840 in?

03840 uses America/New_York.

How many people live in 03840?

About 4,106 people live in ZIP code 03840, in 1,635 households, at 391.6 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 03840?

$162,837 a year, against $99,031 across New Hampshire.

What ZIP codes are near 03840?

The closest are 03801 (3.2 mi), 03885 (3.3 mi), 03862 (4.2 mi), 03870 (4.5 mi) and 03802 (4.7 mi).

Is 03840 a PO Box ZIP code?

03840 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “03840 ZIP Code — Greenland, New Hampshire (Rockingham County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/03840

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