Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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/21505

21505

ZIP 21505 is in Cumberland, Maryland, in Allegany County; area codes 240, 301 and 227; Eastern time. Cumberland has 5 ZIP codes; the others are 21501, 21502, 21503 and 21504.

Type
No street area
Time zone
America/New_York
County
Allegany
Metro area
Cumberland, MD-WV
Coordinates
39.5940, -78.8434

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 21502, whose figures describe that area — not this ZIP code.

☼ Live from 21505 — Cumberland, MD

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 21505 is

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 21505
  • 🔢 Type 21505 into a pocket calculator and turn it upside down: SOSIZ — not quite a word, sorry.
  • ➕ As a number, 21,505 = 5 × 11 × 17 × 23. Its digits add up to 13, a total 1,179 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101010000000001
  • 🏠 Its numerical neighbours: 21504 (Cumberland, MD, 8 mi away) and 21520 (Accident, MD, 25 mi away).
  • 🔄 Backwards, 21505 becomes 50512, which is not a ZIP code at all.
  • 👥 36 other ZIP codes are made of exactly the same digits (01255, 01525, 02155, 05152, 05251, 10552, …). The farthest-flung twin is 51250 in Sioux Center, IA, 931 miles away.
  • 🧭 Farther north than 53% of all ZIP codes, and farther east than 77%.
  • 🎯1,047 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 21505 and you would come out at 39.59°S, 101.16°E — 977 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 58m of daylight. Shortest: 9h 22m.
🌙 The sky over 21505 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

Business and tax activity

Business establishments4This ZIP4
Employees86This ZIP86
Annual payroll$4,129,000This ZIP$4,129,000

Land area

ZIP codes near 21505

ZIPCityDistance
21556 Pinto, MD 1.5 mi
26753 Ridgeley, WV 4.6 mi
26767 Wiley Ford, WV 4.9 mi
21528 Eckhart Mines, MD 5.1 mi
21502 Cumberland, MD 5.7 mi
21542 Midland, MD 5.7 mi
21501 Cumberland, MD 5.9 mi
21503 Cumberland, MD 5.9 mi
21557 Rawlings, MD 6.7 mi
21543 Midlothian, MD 7.1 mi

Find every ZIP code within 10 miles of 21505 →

Questions about this ZIP code

Where is ZIP code 21505?

21505 is in Cumberland, Maryland, in Allegany County, part of the Cumberland, MD-WV micropolitan area. Its published point location is 39.5940, -78.8434.

What county is 21505 in?

21505 lies in Allegany County.

What area code is 21505?

Cumberland uses area codes 240, 301 and 227, from NANPA's telephone records.

What time zone is 21505 in?

21505 uses America/New_York.

What ZIP codes are near 21505?

The closest are 21556 (1.5 mi), 26753 (4.6 mi), 26767 (4.9 mi), 21528 (5.1 mi) and 21502 (5.7 mi).

Is 21505 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.

Download or cite

Cite this page

zipcodes.pro. “21505 ZIP Code — Cumberland, Maryland (Allegany County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21505

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/21505.json

Underlying data is public domain or openly licensed — sources, vintages and licences.