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zipcodes.pro — ZIP/20880

20880

ZIP 20880 is Washington Grove, Maryland, in Montgomery County; area codes 240, 301 and 227; Eastern time.

Type
Standard
Time zone
America/New_York
County
Montgomery
Population
577
Coordinates
39.1407, -77.1745
☼ Live from 20880 — Washington Grove, MD

Weather right now

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Local time: —

Where 20880 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 20880
  • 🔢 Type 20880 into a pocket calculator and turn it upside down: OBBOZ — not quite a word, sorry.
  • ➕ As a number, 20,880 = 2 × 2 × 2 × 2 × 3 × 3 × 5 × 29. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101000110010000
  • 🏠 Its numerical neighbours: 20879 (Gaithersburg, MD, 2 mi away) and 20882 (Gaithersburg, MD, 6 mi away).
  • 🔄 Backwards, 20880 becomes 08802 — and that is a real ZIP code: Asbury, NJ, 156 miles away.
  • 👥 12 other ZIP codes are made of exactly the same digits (02808, 02880, 08028, 08802, 08820, 28080, …). The farthest-flung twin is 88020 in Animas, NM, 1,842 miles away.
  • 🧭 Farther north than 50% of all ZIP codes, and farther east than 81%.
  • 🎯1,140 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 20880 and you would come out at 39.14°S, 102.83°E — 884 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 55m of daylight. Shortest: 9h 25m.
  • 📏 At 0.334 square miles of land, 20880 is bigger than 4% of ZIP codes — about 162 football fields.
🌙 The sky over 20880 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population577This ZIP577
Households289This ZIP289
Housing units303This ZIP303
Median age62.2This ZIP62.2Maryland39.4US 38.9
Median household income$134,583This ZIP$134,583Maryland$103,678US $80,734
Median home value$612,700This ZIP$612,700Maryland$419,900US $332,700
Bachelor's degree or higher77.7%This ZIP77.7%
Mean commute26.6 minThis ZIP26.6 min
Population density1,727.5 / sq miThis ZIP1,727.5 / sq mi

Business and tax activity

Business establishments3This ZIP3
Employees17This ZIP17
Annual payroll$933,000This ZIP$933,000

Land area

Land area0.33 sq miThis ZIP0.33 sq mi
Water area0.00 sq miThis ZIP0.00 sq mi

Other place names in 20880

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

ZIP codes near 20880

ZIPCityDistance
20877 Gaithersburg, MD 0.9 mi
20813 Bethesda, MD 1.8 mi
20827 Bethesda, MD 1.8 mi
20848 Rockville, MD 1.8 mi
20859 Potomac, MD 1.8 mi
20875 Germantown, MD 1.8 mi
20884 Gaithersburg, MD 1.8 mi
20897 Suburb Maryland Fac, MD 1.8 mi
20898 Gaithersburg, MD 1.8 mi
20879 Gaithersburg, MD 1.9 mi

Find every ZIP code within 10 miles of 20880 →

Questions about this ZIP code

Where is ZIP code 20880?

20880 is in Washington Grove, Maryland, in Montgomery County, part of the Washington-Arlington-Alexandria, DC-VA-MD-WV metropolitan area. Its published point location is 39.1407, -77.1745.

What county is 20880 in?

20880 lies in Montgomery County.

What area code is 20880?

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

What time zone is 20880 in?

20880 uses America/New_York.

How many people live in 20880?

About 577 people live in ZIP code 20880, in 289 households, at 1,727.5 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 20880?

$134,583 a year, against $103,678 across Maryland.

What ZIP codes are near 20880?

The closest are 20877 (0.9 mi), 20813 (1.8 mi), 20827 (1.8 mi), 20848 (1.8 mi) and 20859 (1.8 mi).

Is 20880 a PO Box ZIP code?

20880 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “20880 ZIP Code — Washington Grove, Maryland (Montgomery County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/20880

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