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zipcodes.pro — ZIP/03823

03823

ZIP 03823 is Madbury, New Hampshire, in Strafford County; area code 603; Eastern time.

Type
Standard
Time zone
America/New_York
County
Strafford
Population
2,203
Coordinates
43.1746, -70.9415
☼ Live from 03823 — Madbury, NH

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Local time: —

Where 03823 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 03823
  • 🔢 Type 03823 into a pocket calculator and turn it upside down: EZBEO — not quite a word, sorry.
  • ➕ 03823 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 16, a total 1,922 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 111011101111
  • 🏠 Its numerical neighbours: 03822 (Dover, NH, 4 mi away) and 03824 (Durham, NH, 4 mi away).
  • 🔄 Backwards, 03823 becomes 32830 — and that is a real ZIP code: Orlando, FL, 1,180 miles away.
  • 👥 37 other ZIP codes are made of exactly the same digits (02338, 02833, 03238, 03832, 08323, 08332, …). The farthest-flung twin is 83302 in Rogerson, ID, 2,202 miles away.
  • 🧭 Farther north than 84% of all ZIP codes, and farther east than 96%.
  • 🎯1,442 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 03823 and you would come out at 43.17°S, 109.06°E — 860 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 23m of daylight. Shortest: 8h 59m.
  • 📏 At 11.6 square miles of land, 03823 is bigger than 29% of ZIP codes — room for about 8.8 Central Parks.
🌙 The sky over 03823 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population2,203This ZIP2,203
Households735This ZIP735
Housing units756This ZIP756
Median age37.7This ZIP37.7New Hampshire43.3US 38.9
Median household income$148,365This ZIP$148,365New Hampshire$99,031US $80,734
Median home value$476,900This ZIP$476,900New Hampshire$402,500US $332,700
Median gross rent$1,574This ZIP$1,574New Hampshire$1,491US $1,413
Bachelor's degree or higher52.6%This ZIP52.6%
Mean commute25.4 minThis ZIP25.4 min
Population density189.2 / sq miThis ZIP189.2 / sq mi

Business and tax activity

Business establishments25This ZIP25
Employees217This ZIP217
Annual payroll$10,977,000This ZIP$10,977,000
Tax returns filed980This ZIP980
Total adjusted gross income$141,728,000This ZIP$141,728,000

Land area

Land area11.65 sq miThis ZIP11.65 sq mi
Water area0.54 sq miThis ZIP0.54 sq mi

Other place names in 03823

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 03823

ZIPCityDistance
03820 Dover, NH 3.0 mi
03821 Dover, NH 3.8 mi
03822 Dover, NH 3.8 mi
03824 Durham, NH 4.1 mi
03861 Lee, NH 5.1 mi
03825 Barrington, NH 5.7 mi
03869 Rollinsford, NH 5.9 mi
03878 Somersworth, NH 6.1 mi
03839 Rochester, NH 6.9 mi
03857 Newmarket, NH 7.2 mi

Find every ZIP code within 10 miles of 03823 →

Questions about this ZIP code

Where is ZIP code 03823?

03823 is in Madbury, New Hampshire, in Strafford County, part of the Boston-Cambridge-Newton, MA-NH metropolitan area. Its published point location is 43.1746, -70.9415.

What county is 03823 in?

03823 lies in Strafford County.

What area code is 03823?

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

What time zone is 03823 in?

03823 uses America/New_York.

How many people live in 03823?

About 2,203 people live in ZIP code 03823, in 735 households, at 189.2 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 03823?

$148,365 a year, against $99,031 across New Hampshire.

What ZIP codes are near 03823?

The closest are 03820 (3 mi), 03821 (3.8 mi), 03822 (3.8 mi), 03824 (4.1 mi) and 03861 (5.1 mi).

Is 03823 a PO Box ZIP code?

03823 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “03823 ZIP Code — Madbury, New Hampshire (Strafford County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/03823

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