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zipcodes.pro — ZIP/03230

03230

ZIP 03230 is Danbury, New Hampshire, in Merrimack County; area code 603; Eastern time.

Type
Standard
Time zone
America/New_York
County
Merrimack
Metro area
Concord, NH
Population
1,451
Coordinates
43.5281, -71.8645
☼ Live from 03230 — Danbury, NH

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Where 03230 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 03230
  • 🔢 Type 03230 into a pocket calculator and turn it upside down: OEZEO — not quite a word, sorry.
  • ⇆03230 reads the same backwards. It is one of only 412 palindromic ZIP codes.
  • ➕ As a number, 3,230 = 2 × 5 × 17 × 19. Its digits add up to 8, a total 251 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 110010011110
  • 🏠 Its numerical neighbours: 03229 (Contoocook, NH, 24 mi away) and 03231 (East Andover, NH, 8 mi away).
  • 👥 18 other ZIP codes are made of exactly the same digits (02303, 02330, 03032, 03302, 20033, 20303, …). The farthest-flung twin is 33002 in Hialeah, FL, 1,309 miles away.
  • 🧭 Farther north than 85% of all ZIP codes, and farther east than 95%.
  • 🎯1,396 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 03230 and you would come out at 43.53°S, 108.14°E — 903 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 26m of daylight. Shortest: 8h 56m.
  • 📏 At 40.3 square miles of land, 03230 is bigger than 54% of ZIP codes — room for about 31 Central Parks.
🌙 The sky over 03230 today
  • Working out the sun…
🌋 Shake report
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Source: USGS.

People and housing

Population1,451This ZIP1,451
Households649This ZIP649
Housing units773This ZIP773
Median age47.4This ZIP47.4New Hampshire43.3US 38.9
Median household income$71,685This ZIP$71,685New Hampshire$99,031US $80,734
Median home value$240,700This ZIP$240,700New Hampshire$402,500US $332,700
Median gross rent$1,281This ZIP$1,281New Hampshire$1,491US $1,413
Bachelor's degree or higher17.5%This ZIP17.5%
Mean commute36.1 minThis ZIP36.1 min
Population density36.0 / sq miThis ZIP36.0 / sq mi

Business and tax activity

Business establishments24This ZIP24
Employees123This ZIP123
Annual payroll$6,974,000This ZIP$6,974,000
Tax returns filed680This ZIP680
Total adjusted gross income$44,881,000This ZIP$44,881,000

Land area

Land area40.25 sq miThis ZIP40.25 sq mi
Water area0.31 sq miThis ZIP0.31 sq mi

ZIP codes near 03230

ZIPCityDistance
03243 Hill, NH 4.8 mi
03240 Grafton, NH 5.4 mi
03216 Andover, NH 6.5 mi
03287 Wilmot, NH 6.5 mi
03231 East Andover, NH 7.7 mi
03233 Elkins, NH 7.9 mi
03284 Springfield, NH 8.4 mi
03222 Bristol, NH 8.6 mi
03257 New London, NH 9.9 mi
03268 Salisbury, NH 10.8 mi

Find every ZIP code within 10 miles of 03230 →

Questions about this ZIP code

Where is ZIP code 03230?

03230 is in Danbury, New Hampshire, in Merrimack County, part of the Concord, NH micropolitan area. Its published point location is 43.5281, -71.8645.

What county is 03230 in?

03230 lies in Merrimack County.

What area code is 03230?

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

What time zone is 03230 in?

03230 uses America/New_York.

How many people live in 03230?

About 1,451 people live in ZIP code 03230, in 649 households, at 36.0 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 03230?

$71,685 a year, against $99,031 across New Hampshire.

What ZIP codes are near 03230?

The closest are 03243 (4.8 mi), 03240 (5.4 mi), 03216 (6.5 mi), 03287 (6.5 mi) and 03231 (7.7 mi).

Is 03230 a PO Box ZIP code?

03230 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “03230 ZIP Code — Danbury, New Hampshire (Merrimack County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/03230

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