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zipcodes.pro — ZIP/21409

21409

ZIP 21409 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
20,289
Coordinates
39.0184, -76.4425
☼ Live from 21409 — Annapolis, MD

Weather right now

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Local time: —

Where 21409 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 21409
  • 🔢 Type 21409 into a pocket calculator and turn it upside down: GOhIZ — not quite a word, sorry.
  • ➕ As a number, 21,409 = 79 × 271. Its digits add up to 16, a total 1,922 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101001110100001
  • 🏠 Its numerical neighbours: 21405 (Annapolis, MD, 6 mi away) and 21411 (Annapolis, MD, 9 mi away).
  • 🔄 Backwards, 21409 becomes 90412, which is not a ZIP code at all.
  • 👥 56 other ZIP codes are made of exactly the same digits (02149, 02914, 04219, 04291, 04912, 04921, …). The farthest-flung twin is 09142 in APO AE, a military post office, 4,146 miles away.
  • 🧭 Farther south than 50% of all ZIP codes, and farther east than 84%.
  • 🎯1,180 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 21409 and you would come out at 39.02°S, 103.56°E — 846 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 55m of daylight. Shortest: 9h 25m.
  • 📏 At 14.0 square miles of land, 21409 is bigger than 32% of ZIP codes — room for about 11 Central Parks.
🌙 The sky over 21409 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population20,289This ZIP20,289
Households7,312This ZIP7,312
Housing units7,575This ZIP7,575
Median age42.5This ZIP42.5Maryland39.4US 38.9
Median household income$147,151This ZIP$147,151Maryland$103,678US $80,734
Median home value$535,500This ZIP$535,500Maryland$419,900US $332,700
Median gross rent$2,060This ZIP$2,060Maryland$1,705US $1,413
Bachelor's degree or higher58.8%This ZIP58.8%
Mean commute29.9 minThis ZIP29.9 min
Population density1,448.9 / sq miThis ZIP1,448.9 / sq mi

Business and tax activity

Business establishments328This ZIP328
Employees3,155This ZIP3,155
Annual payroll$197,702,000This ZIP$197,702,000
Tax returns filed10,240This ZIP10,240
Total adjusted gross income$1,706,129,000This ZIP$1,706,129,000

Land area

Land area14.00 sq miThis ZIP14.00 sq mi
Water area4.47 sq miThis ZIP4.47 sq mi

Other place names in 21409

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

ZIP codes near 21409

ZIPCityDistance
21402 Annapolis, MD 2.6 mi
21012 Arnold, MD 3.4 mi
21404 Annapolis, MD 3.8 mi
21056 Gibson Island, MD 4.2 mi
21405 Annapolis, MD 5.7 mi
21403 Annapolis, MD 5.8 mi
21401 Annapolis, MD 6.3 mi
21122 Pasadena, MD 7.0 mi
21146 Severna Park, MD 7.5 mi
21666 Stevensville, MD 7.9 mi

Find every ZIP code within 10 miles of 21409 →

Questions about this ZIP code

Where is ZIP code 21409?

21409 is in Annapolis, Maryland, in Anne Arundel County, part of the Baltimore-Columbia-Towson, MD metropolitan area. Its published point location is 39.0184, -76.4425.

What county is 21409 in?

21409 lies in Anne Arundel County.

What area code is 21409?

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

What time zone is 21409 in?

21409 uses America/New_York.

How many people live in 21409?

About 20,289 people live in ZIP code 21409, in 7,312 households, at 1,448.9 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 21409?

$147,151 a year, against $103,678 across Maryland.

What ZIP codes are near 21409?

The closest are 21402 (2.6 mi), 21012 (3.4 mi), 21404 (3.8 mi), 21056 (4.2 mi) and 21405 (5.7 mi).

Is 21409 a PO Box ZIP code?

21409 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “21409 ZIP Code — Annapolis, Maryland (Anne Arundel County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21409

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