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zipcodes.pro — ZIP/21529

21529

ZIP 21529 is Ellerslie, 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
514
Coordinates
39.7137, -78.7762
☼ Live from 21529 — Ellerslie, MD

Weather right now

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Local time: —

Where 21529 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 21529
  • 🔢 Type 21529 into a pocket calculator and turn it upside down: GZSIZ — not quite a word, sorry.
  • ➕ 21529 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 19, a total 2,454 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101010000011001
  • 🏠 Its numerical neighbours: 21528 (Eckhart Mines, MD, 8 mi away) and 21530 (Flintstone, MD, 12 mi away).
  • 🔄 Backwards, 21529 becomes 92512, which is not a ZIP code at all.
  • 👥 24 other ZIP codes are made of exactly the same digits (12529, 12592, 12952, 15229, 15922, 19522, …). The farthest-flung twin is 95122 in San Jose, CA, 2,311 miles away.
  • 🧭 Farther north than 54% of all ZIP codes, and farther east than 77%.
  • 🎯1,050 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 21529 and you would come out at 39.71°S, 101.22°E — 978 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 59m of daylight. Shortest: 9h 21m.
  • 📏 At 0.923 square miles of land, 21529 is bigger than 8% of ZIP codes — about 447 football fields.
🌙 The sky over 21529 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population514This ZIP514
Households291This ZIP291
Housing units318This ZIP318
Median age54.3This ZIP54.3Maryland39.4US 38.9
Median household income$37,240This ZIP$37,240Maryland$103,678US $80,734
Median home value$163,300This ZIP$163,300Maryland$419,900US $332,700
Median gross rent$830This ZIP$830Maryland$1,705US $1,413
Bachelor's degree or higher6.4%This ZIP6.4%
Mean commute29.4 minThis ZIP29.4 min
Population density556.9 / sq miThis ZIP556.9 / sq mi

Business and tax activity

Business establishments10This ZIP10
Employees48This ZIP48
Annual payroll$1,426,000This ZIP$1,426,000

Land area

Land area0.92 sq miThis ZIP0.92 sq mi
Water area0.03 sq miThis ZIP0.03 sq mi

Other place names in 21529

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

ZIP codes near 21529

ZIPCityDistance
21524 Corriganville, MD 1.5 mi
15564 Wellersburg, PA 3.8 mi
21545 Mount Savage, MD 4.2 mi
21501 Cumberland, MD 4.3 mi
21503 Cumberland, MD 4.3 mi
21502 Cumberland, MD 5.1 mi
15545 Hyndman, PA 6.2 mi
26767 Wiley Ford, WV 6.8 mi
21528 Eckhart Mines, MD 7.9 mi
21505 Cumberland, MD 9.0 mi

Find every ZIP code within 10 miles of 21529 →

Questions about this ZIP code

Where is ZIP code 21529?

21529 is in Ellerslie, Maryland, in Allegany County, part of the Cumberland, MD-WV micropolitan area. Its published point location is 39.7137, -78.7762.

What county is 21529 in?

21529 lies in Allegany County.

What area code is 21529?

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

What time zone is 21529 in?

21529 uses America/New_York.

How many people live in 21529?

About 514 people live in ZIP code 21529, in 291 households, at 556.9 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 21529?

$37,240 a year, against $103,678 across Maryland.

What ZIP codes are near 21529?

The closest are 21524 (1.5 mi), 15564 (3.8 mi), 21545 (4.2 mi), 21501 (4.3 mi) and 21503 (4.3 mi).

Is 21529 a PO Box ZIP code?

21529 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “21529 ZIP Code — Ellerslie, Maryland (Allegany County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21529

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