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zipcodes.pro — ZIP/21780

21780

ZIP 21780 is Sabillasville, Maryland, mostly in Frederick County; area codes 240 and 301; Eastern time.

Type
Standard
Time zone
America/New_York
County
Frederick +1 more
Population
2,159
Coordinates
39.6722, -77.4716
☼ Live from 21780 — Sabillasville, MD

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Local time: —

Where 21780 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 21780
  • 🔢 Type 21780 into a pocket calculator and turn it upside down: OBLIZ — not quite a word, sorry.
  • ➕ As a number, 21,780 = 2 × 2 × 3 × 3 × 5 × 11 × 11. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101010100010100
  • 🏠 Its numerical neighbours: 21779 (Rohrersville, MD, 20 mi away) and 21781 (Saint James, MD, 17 mi away).
  • 🔄 Backwards, 21780 becomes 08712, which is not a ZIP code at all.
  • 👥 67 other ZIP codes are made of exactly the same digits (01827, 02187, 02718, 02817, 02871, 07821, …). The farthest-flung twin is 87021 in Milan, NM, 1,688 miles away.
  • 🧭 Farther north than 53% of all ZIP codes, and farther east than 80%.
  • 🎯1,119 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 21780 and you would come out at 39.67°S, 102.53°E — 916 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 59m of daylight. Shortest: 9h 21m.
  • 📏 At 22.1 square miles of land, 21780 is bigger than 39% of ZIP codes — room for about 17 Central Parks.
🌙 The sky over 21780 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population2,159This ZIP2,159
Households781This ZIP781
Housing units812This ZIP812
Median age41.5This ZIP41.5Maryland39.4US 38.9
Median household income$83,785This ZIP$83,785Maryland$103,678US $80,734
Median home value$451,600This ZIP$451,600Maryland$419,900US $332,700
Median gross rent$1,374This ZIP$1,374Maryland$1,705US $1,413
Bachelor's degree or higher24.7%This ZIP24.7%
Mean commute46.7 minThis ZIP46.7 min
Population density97.9 / sq miThis ZIP97.9 / sq mi

Business and tax activity

Business establishments17This ZIP17
Employees132This ZIP132
Annual payroll$6,392,000This ZIP$6,392,000
Tax returns filed760This ZIP760
Total adjusted gross income$59,409,000This ZIP$59,409,000

Land area

Land area22.06 sq miThis ZIP22.06 sq mi
Water area0.02 sq miThis ZIP0.02 sq mi

Counties 21780 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Frederick County 95.7%
Washington County 4.3%

Other place names in 21780

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

ZIP codes near 21780

ZIPCityDistance
21719 Cascade, MD 2.7 mi
21783 Smithsburg, MD 4.5 mi
17250 Rouzerville, PA 5.2 mi
17214 Blue Ridge Summit, PA 5.2 mi
21720 Cavetown, MD 6.2 mi
21788 Thurmont, MD 6.5 mi
21727 Emmitsburg, MD 7.7 mi
17320 Fairfield, PA 8.1 mi
21778 Rocky Ridge, MD 8.6 mi
17268 Waynesboro, PA 9.0 mi

Find every ZIP code within 10 miles of 21780 →

Questions about this ZIP code

Where is ZIP code 21780?

21780 is in Sabillasville, Maryland, in Frederick County, part of the Washington-Arlington-Alexandria, DC-VA-MD-WV metropolitan area. Its published point location is 39.6722, -77.4716.

What county is 21780 in?

21780 spans 2 counties: Frederick County and Washington County. Most of it falls in Frederick County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.

What area code is 21780?

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

What time zone is 21780 in?

21780 uses America/New_York.

How many people live in 21780?

About 2,159 people live in ZIP code 21780, in 781 households, at 97.9 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 21780?

$83,785 a year, against $103,678 across Maryland.

What ZIP codes are near 21780?

The closest are 21719 (2.7 mi), 21783 (4.5 mi), 17250 (5.2 mi), 17214 (5.2 mi) and 21720 (6.2 mi).

Is 21780 a PO Box ZIP code?

21780 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “21780 ZIP Code — Sabillasville, Maryland (Frederick County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/21780

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