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Where 21520 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.
- 🔢 Type 21520 into a pocket calculator and turn it upside down: OZSIZ — not quite a word, sorry.
- ➕ As a number, 21,520 = 2 × 2 × 2 × 2 × 5 × 269. Its digits add up to 10, a total 513 other ZIP codes share.
- 💾In binary, the way a computer stores it:
101010000010000 - 🏠 Its numerical neighbours: 21505 (Cumberland, MD, 25 mi away) and 21521 (Barton, MD, 15 mi away).
- 🔄 Backwards, 21520 becomes 02512, which is not a ZIP code at all.
- 👥 35 other ZIP codes are made of exactly the same digits (01225, 01252, 01522, 02125, 02152, 02215, …). The farthest-flung twin is 51022 in Granville, IA, 887 miles away.
- 🧭 Farther north than 53% of all ZIP codes, and farther east than 76%.
- 🎯1,022 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 21520 and you would come out at 39.64°S, 100.69°E — 1,000 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 59m of daylight. Shortest: 9h 22m.
- 📏 At 56.7 square miles of land, 21520 is bigger than 63% of ZIP codes — room for about 43 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 1,918This ZIP1,918 |
|---|---|
| Households | 787This ZIP787 |
| Housing units | 978This ZIP978 |
| Median age | 43.3This ZIP43.3Maryland39.4US 38.9 |
| Median household income | $59,852This ZIP$59,852Maryland$103,678US $80,734 |
| Median home value | $298,600This ZIP$298,600Maryland$419,900US $332,700 |
| Median gross rent | $693This ZIP$693Maryland$1,705US $1,413 |
| Bachelor's degree or higher | 30.8%This ZIP30.8% |
| Mean commute | 20.8 minThis ZIP20.8 min |
| Population density | 33.8 / sq miThis ZIP33.8 / sq mi |
Business and tax activity
| Business establishments | 64This ZIP64 |
|---|---|
| Employees | 529This ZIP529 |
| Annual payroll | $18,713,000This ZIP$18,713,000 |
| Tax returns filed | 990This ZIP990 |
| Total adjusted gross income | $69,067,000This ZIP$69,067,000 |
Land area
| Land area | 56.69 sq miThis ZIP56.69 sq mi |
|---|---|
| Water area | 0.00 sq mi |
Other place names in 21520
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 21520
| ZIP | City | Distance |
|---|---|---|
21522 | Bittinger, MD | 5.1 mi |
21531 | Friendsville, MD | 6.4 mi |
21541 | Mc Henry, MD | 7.6 mi |
21536 | Grantsville, MD | 7.7 mi |
15411 | Addison, PA | 7.9 mi |
15540 | Fort Hill, PA | 11.7 mi |
21561 | Swanton, MD | 11.7 mi |
15459 | Markleysburg, PA | 12.2 mi |
15485 | Ursina, PA | 12.5 mi |
15562 | Springs, PA | 12.8 mi |
Find every ZIP code within 10 miles of 21520 →
Questions about this ZIP code
Where is ZIP code 21520?
21520 is in Accident, Maryland, in Garrett County. Its published point location is 39.6366, -79.3078.
What county is 21520 in?
21520 lies in Garrett County.
What area code is 21520?
Accident uses area codes 240, 227 and 301, from NANPA's telephone records.
What time zone is 21520 in?
21520 uses America/New_York.
How many people live in 21520?
About 1,918 people live in ZIP code 21520, in 787 households, at 33.8 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 21520?
$59,852 a year, against $103,678 across Maryland.
What ZIP codes are near 21520?
The closest are 21522 (5.1 mi), 21531 (6.4 mi), 21541 (7.6 mi), 21536 (7.7 mi) and 15411 (7.9 mi).
Is 21520 a PO Box ZIP code?
21520 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “21520 ZIP Code — Accident, Maryland (Garrett County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21520
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/21520.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.