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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/21536

21536

ZIP 21536 is Grantsville, Maryland, in Garrett County; area codes 240, 227 and 301; Eastern time.

Type
Standard
Time zone
America/New_York
County
Garrett
Metro area
none
Population
3,833
Coordinates
39.6570, -79.1656
☼ Live from 21536 — Grantsville, MD

Weather right now

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Local time: —

Where 21536 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 21536
  • 🔢 Type 21536 into a pocket calculator and turn it upside down: gESIZ — not quite a word, sorry.
  • ➕ As a number, 21,536 = 2 × 2 × 2 × 2 × 2 × 673. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101010000100000
  • 🏠 Its numerical neighbours: 21532 (Frostburg, MD, 10 mi away) and 21538 (Kitzmiller, MD, 17 mi away).
  • 🔄 Backwards, 21536 becomes 63512, which is not a ZIP code at all.
  • 👥 55 other ZIP codes are made of exactly the same digits (12563, 13625, 13652, 15236, 15362, 15623, …). The farthest-flung twin is 56231 in Danvers, MN, 929 miles away.
  • 🧭 Farther north than 53% of all ZIP codes, and farther east than 76%.
  • 🎯1,029 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 21536 and you would come out at 39.66°S, 100.83°E — 994 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 59m of daylight. Shortest: 9h 22m.
  • 📏 At 97.9 square miles of land, 21536 is bigger than 77% of ZIP codes — room for about 74 Central Parks.
🌙 The sky over 21536 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population3,833This ZIP3,833
Households1,654This ZIP1,654
Housing units1,756This ZIP1,756
Median age47.7This ZIP47.7Maryland39.4US 38.9
Median household income$64,205This ZIP$64,205Maryland$103,678US $80,734
Median home value$201,300This ZIP$201,300Maryland$419,900US $332,700
Median gross rent$664This ZIP$664Maryland$1,705US $1,413
Bachelor's degree or higher18.4%This ZIP18.4%
Mean commute22.8 minThis ZIP22.8 min
Population density39.2 / sq miThis ZIP39.2 / sq mi

Business and tax activity

Business establishments130This ZIP130
Employees1,757This ZIP1,757
Annual payroll$80,344,000This ZIP$80,344,000
Tax returns filed1,890This ZIP1,890
Total adjusted gross income$110,603,000This ZIP$110,603,000

Land area

Land area97.88 sq miThis ZIP97.88 sq mi
Water area0.13 sq miThis ZIP0.13 sq mi

Other place names in 21536

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

ZIP codes near 21536

ZIPCityDistance
21522 Bittinger, MD 4.9 mi
15562 Springs, PA 6.5 mi
15565 West Salisbury, PA 7.5 mi
21520 Accident, MD 7.7 mi
15558 Salisbury, PA 8.6 mi
15532 Boynton, PA 9.2 mi
21539 Lonaconing, MD 9.3 mi
21532 Frostburg, MD 9.6 mi
21521 Barton, MD 9.8 mi
15540 Fort Hill, PA 10.5 mi

Find every ZIP code within 10 miles of 21536 →

Questions about this ZIP code

Where is ZIP code 21536?

21536 is in Grantsville, Maryland, in Garrett County. Its published point location is 39.6570, -79.1656.

What county is 21536 in?

21536 lies in Garrett County.

What area code is 21536?

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

What time zone is 21536 in?

21536 uses America/New_York.

How many people live in 21536?

About 3,833 people live in ZIP code 21536, in 1,654 households, at 39.2 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 21536?

$64,205 a year, against $103,678 across Maryland.

What ZIP codes are near 21536?

The closest are 21522 (4.9 mi), 15562 (6.5 mi), 15565 (7.5 mi), 21520 (7.7 mi) and 15558 (8.6 mi).

Is 21536 a PO Box ZIP code?

21536 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “21536 ZIP Code — Grantsville, Maryland (Garrett County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21536

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