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zipcodes.pro — ZIP/21722

21722

ZIP 21722 is Clear Spring, Maryland, in Washington County; area codes 240 and 301; Eastern time.

Type
Standard
Time zone
America/New_York
County
Washington
Population
6,721
Coordinates
39.6645, -77.9135
☼ Live from 21722 — Clear Spring, MD

Weather right now

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Local time: —

Where 21722 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 21722
  • 🔢 Type 21722 into a pocket calculator and turn it upside down: ZZLIZ — not quite a word, sorry.
  • ➕ As a number, 21,722 = 2 × 10861. Its digits add up to 14, a total 1,416 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101010011011010
  • 🏠 Its numerical neighbours: 21721 (Chewsville, MD, 15 mi away) and 21723 (Cooksville, MD, 54 mi away).
  • 🔄 Backwards, 21722 becomes 22712 — and that is a real ZIP code: Bealeton, VA, 77 miles away.
  • 👥 12 other ZIP codes are made of exactly the same digits (12227, 12722, 17222, 21227, 22172, 22217, …). The farthest-flung twin is 71222 in Bernice, LA, 946 miles away.
  • 🧭 Farther north than 53% of all ZIP codes, and farther east than 79%.
  • 🎯1,095 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 21722 and you would come out at 39.66°S, 102.09°E — 936 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 59m of daylight. Shortest: 9h 22m.
  • 📏 At 56.9 square miles of land, 21722 is bigger than 63% of ZIP codes — room for about 43 Central Parks.
🌙 The sky over 21722 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population6,721This ZIP6,721
Households2,222This ZIP2,222
Housing units2,356This ZIP2,356
Median age40.7This ZIP40.7Maryland39.4US 38.9
Median household income$88,232This ZIP$88,232Maryland$103,678US $80,734
Median home value$312,500This ZIP$312,500Maryland$419,900US $332,700
Median gross rent$932This ZIP$932Maryland$1,705US $1,413
Bachelor's degree or higher20.0%This ZIP20.0%
Mean commute33.5 minThis ZIP33.5 min
Population density118.1 / sq miThis ZIP118.1 / sq mi

Business and tax activity

Business establishments85This ZIP85
Employees570This ZIP570
Annual payroll$24,909,000This ZIP$24,909,000
Tax returns filed2,800This ZIP2,800
Total adjusted gross income$209,959,000This ZIP$209,959,000

Land area

Land area56.92 sq miThis ZIP56.92 sq mi
Water area1.38 sq miThis ZIP1.38 sq mi

Other place names in 21722

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

ZIP codes near 21722

ZIPCityDistance
21711 Big Pool, MD 5.7 mi
25419 Falling Waters, WV 5.8 mi
21795 Williamsport, MD 7.5 mi
21767 Maugansville, MD 9.2 mi
21740 Hagerstown, MD 9.3 mi
17236 Mercersburg, PA 9.5 mi
21741 Hagerstown, MD 10.4 mi
21747 Hagerstown, MD 10.4 mi
21749 Hagerstown, MD 10.4 mi
21781 Saint James, MD 10.4 mi

Find every ZIP code within 10 miles of 21722 →

Questions about this ZIP code

Where is ZIP code 21722?

21722 is in Clear Spring, Maryland, in Washington County, part of the Hagerstown-Martinsburg, MD-WV metropolitan area. Its published point location is 39.6645, -77.9135.

What county is 21722 in?

21722 lies in Washington County.

What area code is 21722?

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

What time zone is 21722 in?

21722 uses America/New_York.

How many people live in 21722?

About 6,721 people live in ZIP code 21722, in 2,222 households, at 118.1 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 21722?

$88,232 a year, against $103,678 across Maryland.

What ZIP codes are near 21722?

The closest are 21711 (5.7 mi), 25419 (5.8 mi), 21795 (7.5 mi), 21767 (9.2 mi) and 21740 (9.3 mi).

Is 21722 a PO Box ZIP code?

21722 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “21722 ZIP Code — Clear Spring, Maryland (Washington County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21722

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