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zipcodes.pro — ZIP/21545

21545

ZIP 21545 is Mount Savage, Maryland, in Allegany County; area codes 240 and 301; Eastern time.

Type
Standard
Time zone
America/New_York
County
Allegany
Metro area
Cumberland, MD-WV
Population
1,694
Coordinates
39.7041, -78.8545
☼ Live from 21545 — Mount Savage, MD

Weather right now

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Local time: —

Where 21545 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 21545
  • 🔢 Type 21545 into a pocket calculator and turn it upside down: ShSIZ — not quite a word, sorry.
  • ➕ As a number, 21,545 = 5 × 31 × 139. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101010000101001
  • 🏠 Its numerical neighbours: 21543 (Midlothian, MD, 7 mi away) and 21550 (Oakland, MD, 36 mi away).
  • 🔄 Backwards, 21545 becomes 54512 — and that is a real ZIP code: Boulder Junction, WI, 702 miles away.
  • 👥 28 other ZIP codes are made of exactly the same digits (12455, 12545, 14525, 15254, 15425, 15542, …). The farthest-flung twin is 51542 in Honey Creek, IA, 898 miles away.
  • 🧭 Farther north than 54% of all ZIP codes, and farther east than 77%.
  • 🎯1,045 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 21545 and you would come out at 39.70°S, 101.15°E — 981 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 59m of daylight. Shortest: 9h 21m.
  • 📏 At 15.9 square miles of land, 21545 is bigger than 34% of ZIP codes — room for about 12 Central Parks.
🌙 The sky over 21545 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,694This ZIP1,694
Households709This ZIP709
Housing units810This ZIP810
Median age43.1This ZIP43.1Maryland39.4US 38.9
Median household income$60,264This ZIP$60,264Maryland$103,678US $80,734
Median home value$130,700This ZIP$130,700Maryland$419,900US $332,700
Median gross rent$905This ZIP$905Maryland$1,705US $1,413
Bachelor's degree or higher17.9%This ZIP17.9%
Mean commute24.3 minThis ZIP24.3 min
Population density106.4 / sq miThis ZIP106.4 / sq mi

Business and tax activity

Business establishments16This ZIP16
Employees48This ZIP48
Annual payroll$2,416,000This ZIP$2,416,000
Tax returns filed800This ZIP800
Total adjusted gross income$44,104,000This ZIP$44,104,000

Land area

Land area15.91 sq miThis ZIP15.91 sq mi
Water area0.01 sq miThis ZIP0.01 sq mi

Other place names in 21545

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

ZIP codes near 21545

ZIPCityDistance
15564 Wellersburg, PA 1.8 mi
21524 Corriganville, MD 2.8 mi
21529 Ellerslie, MD 4.2 mi
21528 Eckhart Mines, MD 4.3 mi
21501 Cumberland, MD 6.0 mi
21503 Cumberland, MD 6.0 mi
21502 Cumberland, MD 6.8 mi
21543 Midlothian, MD 7.0 mi
21505 Cumberland, MD 7.6 mi
21532 Frostburg, MD 7.9 mi

Find every ZIP code within 10 miles of 21545 →

Questions about this ZIP code

Where is ZIP code 21545?

21545 is in Mount Savage, Maryland, in Allegany County, part of the Cumberland, MD-WV micropolitan area. Its published point location is 39.7041, -78.8545.

What county is 21545 in?

21545 lies in Allegany County.

What area code is 21545?

Mount Savage uses area codes 240 and 301, from NANPA's telephone records.

What time zone is 21545 in?

21545 uses America/New_York.

How many people live in 21545?

About 1,694 people live in ZIP code 21545, in 709 households, at 106.4 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 21545?

$60,264 a year, against $103,678 across Maryland.

What ZIP codes are near 21545?

The closest are 15564 (1.8 mi), 21524 (2.8 mi), 21529 (4.2 mi), 21528 (4.3 mi) and 21501 (6 mi).

Is 21545 a PO Box ZIP code?

21545 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “21545 ZIP Code — Mount Savage, Maryland (Allegany County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21545

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