21411

ZIP 21411 is in Annapolis, Maryland, in Anne Arundel County; area codes 443, 410 and 667; Eastern time. Annapolis has 8 ZIP codes in all.

Type: No street area
Time zone: America/New_York
County: Anne Arundel
Metro area: Baltimore-Columbia-Towson, MD
Coordinates: 38.9742, -76.5949

The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

This ZIP code has no Census tabulation area of its own. Its point falls inside ZCTA 21401, whose figures describe that area — not this ZIP code.

☼ Live from 21411 — Annapolis, MD

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Where 21411 is

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This ZIP code has no Census tabulation area, so there is no boundary to draw — the marker is its published point location.

★ Weird and wonderful facts about 21411

🔢 Type 21411 into a pocket calculator and turn it upside down: IIhIZ — not quite a word, sorry.
➕ As a number, 21,411 = 3 × 3 × 3 × 13 × 61. Its digits add up to 9, a total 375 other ZIP codes share.
💾In binary, the way a computer stores it: 101001110100011
🏠 Its numerical neighbours: 21409 (Annapolis, MD, 9 mi away) and 21412 (Annapolis, MD, 0 mi away).
🔄 Backwards, 21411 becomes 11412 — and that is a real ZIP code: Saint Albans, NY, 192 miles away.
👥 11 other ZIP codes are made of exactly the same digits (11214, 11241, 11412, 11421, 12141, 12411, …). The farthest-flung twin is 41121 in Argillite, KY, 338 miles away.
🧭 Farther south than 51% of all ZIP codes, and farther east than 83%.
🎯1,172 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
🌏 Dig straight through the Earth from 21411 and you would come out at 38.97°S, 103.41°E — 851 miles from Perth, Australia, the nearest big city to that spot.
☀Longest day of the year: 14h 54m of daylight. Shortest: 9h 26m.

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Land area

ZIP codes near 21411

ZIP	City	Distance
`21062`	Glen Burnie, MD	0.0 mi
`21123`	Pasadena, MD	0.0 mi
`21412`	Annapolis, MD	0.0 mi
`21140`	Riva, MD	1.7 mi
`21401`	Annapolis, MD	2.5 mi
`21035`	Davidsonville, MD	3.0 mi
`21032`	Crownsville, MD	3.8 mi
`21405`	Annapolis, MD	4.5 mi
`21037`	Edgewater, MD	4.7 mi
`21114`	Crofton, MD	5.4 mi

Find every ZIP code within 10 miles of 21411 →

Questions about this ZIP code

Where is ZIP code 21411?

21411 is in Annapolis, Maryland, in Anne Arundel County, part of the Baltimore-Columbia-Towson, MD metropolitan area. Its published point location is 38.9742, -76.5949.

What county is 21411 in?

21411 lies in Anne Arundel County.

What area code is 21411?

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

What time zone is 21411 in?

21411 uses America/New_York.

What ZIP codes are near 21411?

The closest are 21062 (0 mi), 21123 (0 mi), 21412 (0 mi), 21140 (1.7 mi) and 21401 (2.5 mi).

Is 21411 a PO Box ZIP code?

Possibly. The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

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Cite this page

zipcodes.pro. “21411 ZIP Code — Annapolis, Maryland (Anne Arundel County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21411

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/21411.json

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