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ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/21122

21122

ZIP 21122 is in Pasadena, Maryland, in Anne Arundel County; area codes 410, 443 and 667; Eastern time. Pasadena has 2 ZIP codes; the other is 21123.

Type
Standard
Time zone
America/New_York
County
Anne Arundel
Population
61,566
Coordinates
39.1143, -76.4874
☼ Live from 21122 — Pasadena, MD

Weather right now

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NEXRAD radar
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Local time: —

Where 21122 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 21122
  • 🔢 Type 21122 into a pocket calculator and turn it upside down: ZZIIZ — not quite a word, sorry.
  • ➕ As a number, 21,122 = 2 × 59 × 179. Its digits add up to 8, a total 251 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101001010000010
  • 🏠 Its numerical neighbours: 21120 (Parkton, MD, 38 mi away) and 21123 (Pasadena, MD, 11 mi away).
  • 🔄 Backwards, 21122 becomes 22112, which is not a ZIP code at all.
  • 👥 7 other ZIP codes are made of exactly the same digits (11222, 12122, 12212, 21212, 21221, 22121, …). The farthest-flung twin is 12212 in Albany, NY, 285 miles away.
  • 🧭 Farther north than 50% of all ZIP codes, and farther east than 83%.
  • 🎯1,176 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 21122 and you would come out at 39.11°S, 103.51°E — 851 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 55m of daylight. Shortest: 9h 25m.
  • 📏 At 31.4 square miles of land, 21122 is bigger than 47% of ZIP codes — room for about 24 Central Parks.
🌙 The sky over 21122 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population61,566This ZIP61,566
Households22,423This ZIP22,423
Housing units23,675This ZIP23,675
Median age40.2This ZIP40.2Maryland39.4US 38.9
Median household income$127,587This ZIP$127,587Maryland$103,678US $80,734
Median home value$425,800This ZIP$425,800Maryland$419,900US $332,700
Median gross rent$2,108This ZIP$2,108Maryland$1,705US $1,413
Bachelor's degree or higher31.4%This ZIP31.4%
Mean commute31.5 minThis ZIP31.5 min
Population density1,962.3 / sq miThis ZIP1,962.3 / sq mi

Business and tax activity

Business establishments1,084This ZIP1,084
Employees10,845This ZIP10,845
Annual payroll$490,565,000This ZIP$490,565,000
Tax returns filed31,960This ZIP31,960
Total adjusted gross income$3,097,773,000This ZIP$3,097,773,000

Land area

Land area31.38 sq miThis ZIP31.38 sq mi
Water area15.29 sq miThis ZIP15.29 sq mi

Other place names in 21122

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

ZIP codes near 21122

ZIPCityDistance
21056 Gibson Island, MD 3.7 mi
21146 Severna Park, MD 4.5 mi
21012 Arnold, MD 4.7 mi
21060 Glen Burnie, MD 6.3 mi
21052 Fort Howard, MD 6.8 mi
21405 Annapolis, MD 6.8 mi
21409 Annapolis, MD 7.0 mi
21108 Millersville, MD 7.4 mi
21226 Curtis Bay, MD 7.7 mi
21061 Glen Burnie, MD 8.4 mi

Find every ZIP code within 10 miles of 21122 →

Questions about this ZIP code

Where is ZIP code 21122?

21122 is in Pasadena, Maryland, in Anne Arundel County, part of the Baltimore-Columbia-Towson, MD metropolitan area. Its published point location is 39.1143, -76.4874.

What county is 21122 in?

21122 lies in Anne Arundel County.

What area code is 21122?

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

What time zone is 21122 in?

21122 uses America/New_York.

How many people live in 21122?

About 61,566 people live in ZIP code 21122, in 22,423 households, at 1,962.3 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 21122?

$127,587 a year, against $103,678 across Maryland.

What ZIP codes are near 21122?

The closest are 21056 (3.7 mi), 21146 (4.5 mi), 21012 (4.7 mi), 21060 (6.3 mi) and 21052 (6.8 mi).

Is 21122 a PO Box ZIP code?

21122 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “21122 ZIP Code — Pasadena, Maryland (Anne Arundel County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21122

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