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zipcodes.pro — ZIP/21402

21402

ZIP 21402 is in Annapolis, Maryland, in Anne Arundel County; area codes 443, 410 and 667; Eastern time. Annapolis has 8 ZIP codes in all.

Type
Standard
Time zone
America/New_York
County
Anne Arundel
Population
4,303
Coordinates
38.9884, -76.4707
☼ Live from 21402 — Annapolis, MD

Weather right now

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Local time: —

Where 21402 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 21402
  • 🔢 Type 21402 into a pocket calculator and turn it upside down: ZOhIZ — not quite a word, sorry.
  • ➕ As a number, 21,402 = 2 × 3 × 3 × 29 × 41. Its digits add up to 9, a total 375 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101001110011010
  • 🏠 Its numerical neighbours: 21401 (Annapolis, MD, 4 mi away) and 21403 (Annapolis, MD, 3 mi away).
  • 🔄 Backwards, 21402 becomes 20412 — and that is a real ZIP code: Washington, DC, 30 miles away.
  • 👥 43 other ZIP codes are made of exactly the same digits (01224, 01242, 02124, 02142, 02241, 02421, …). The farthest-flung twin is 42021 in Arlington, KY, 699 miles away.
  • 🧭 Farther south than 51% of all ZIP codes, and farther east than 83%.
  • 🎯1,179 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 21402 and you would come out at 38.99°S, 103.53°E — 846 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 54m of daylight. Shortest: 9h 26m.
  • 📏 At 1.9 square miles of land, 21402 is bigger than 11% of ZIP codes — room for about 1.4 Central Parks.
🌙 The sky over 21402 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population4,303This ZIP4,303
Households441This ZIP441
Housing units492This ZIP492
Median age21.0This ZIP21.0Maryland39.4US 38.9
Median household income$80,893This ZIP$80,893Maryland$103,678US $80,734
Median gross rent$2,933This ZIP$2,933Maryland$1,705US $1,413
Bachelor's degree or higher34.1%This ZIP34.1%
Mean commute9.6 minThis ZIP9.6 min
Population density2,297.4 / sq miThis ZIP2,297.4 / sq mi

Business and tax activity

Business establishments21This ZIP21
Employees439This ZIP439
Annual payroll$29,408,000This ZIP$29,408,000
Tax returns filed470This ZIP470
Total adjusted gross income$34,969,000This ZIP$34,969,000

Land area

Land area1.87 sq miThis ZIP1.87 sq mi
Water area1.04 sq miThis ZIP1.04 sq mi

Other place names in 21402

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

ZIP codes near 21402

ZIPCityDistance
21404 Annapolis, MD 1.3 mi
21409 Annapolis, MD 2.6 mi
21403 Annapolis, MD 3.4 mi
21012 Arnold, MD 4.2 mi
21401 Annapolis, MD 4.4 mi
21405 Annapolis, MD 5.0 mi
21037 Edgewater, MD 6.2 mi
21056 Gibson Island, MD 6.5 mi
21062 Glen Burnie, MD 6.7 mi
21123 Pasadena, MD 6.7 mi

Find every ZIP code within 10 miles of 21402 →

Questions about this ZIP code

Where is ZIP code 21402?

21402 is in Annapolis, Maryland, in Anne Arundel County, part of the Baltimore-Columbia-Towson, MD metropolitan area. Its published point location is 38.9884, -76.4707.

What county is 21402 in?

21402 lies in Anne Arundel County.

What area code is 21402?

Annapolis uses area codes 443, 410 and 667, from NANPA's telephone records.

What time zone is 21402 in?

21402 uses America/New_York.

How many people live in 21402?

About 4,303 people live in ZIP code 21402, in 441 households, at 2,297.4 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 21402?

$80,893 a year, against $103,678 across Maryland.

What ZIP codes are near 21402?

The closest are 21404 (1.3 mi), 21409 (2.6 mi), 21403 (3.4 mi), 21012 (4.2 mi) and 21401 (4.4 mi).

Is 21402 a PO Box ZIP code?

21402 is a standard ZIP code. A normal ZIP code with street delivery.

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zipcodes.pro. “21402 ZIP Code — Annapolis, Maryland (Anne Arundel County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21402

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