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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/20889

20889

ZIP 20889 is in Bethesda, Maryland, in Montgomery County; area codes 240, 301 and 227; Eastern time. Bethesda has 11 ZIP codes in all.

Type
Standard
Time zone
America/New_York
County
Montgomery
Population
584
Coordinates
39.0038, -77.0870
☼ Live from 20889 — Bethesda, MD

Weather right now

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Where 20889 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 20889
  • 🔢 Type 20889 into a pocket calculator and turn it upside down: GBBOZ — not quite a word, sorry.
  • ➕ As a number, 20,889 = 3 × 3 × 11 × 211. Its digits add up to 27, a total 1,806 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 101000110011001
  • 🏠 Its numerical neighbours: 20886 (Montgomery Village, MD, 14 mi away) and 20891 (Kensington, MD, 2 mi away).
  • 🔄 Backwards, 20889 becomes 98802 — and that is a real ZIP code: East Wenatchee, WA, 2,215 miles away.
  • 👥 23 other ZIP codes are made of exactly the same digits (02889, 02898, 08829, 09828, 09882, 20898, …). The farthest-flung twin is 09882 in APO AA, a military post office, 6,735 miles away.
  • 🧭 Farther south than 50% of all ZIP codes, and farther east than 81%.
  • 🎯1,146 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 20889 and you would come out at 39.00°S, 102.91°E — 875 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 54m of daylight. Shortest: 9h 25m.
  • 📏 At 0.390 square miles of land, 20889 is bigger than 4% of ZIP codes — about 189 football fields.
🌙 The sky over 20889 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population584This ZIP584
Households21This ZIP21
Housing units21This ZIP21
Median age21.9This ZIP21.9Maryland39.4US 38.9
Bachelor's degree or higher33.7%This ZIP33.7%
Mean commute6.4 minThis ZIP6.4 min
Population density1,497.4 / sq miThis ZIP1,497.4 / sq mi

Business and tax activity

Business establishments30This ZIP30
Employees2,995This ZIP2,995
Annual payroll$293,187,000This ZIP$293,187,000

Land area

Land area0.39 sq miThis ZIP0.39 sq mi
Water area0.00 sq miThis ZIP0.00 sq mi

Other place names in 20889

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

ZIP codes near 20889

ZIPCityDistance
20825 Chevy Chase, MD 0.8 mi
20814 Bethesda, MD 0.9 mi
20892 Bethesda, MD 0.9 mi
20894 Bethesda, MD 1.0 mi
20815 Chevy Chase, MD 1.5 mi
20891 Kensington, MD 1.6 mi
20895 Kensington, MD 1.7 mi
20824 Bethesda, MD 1.7 mi
20810 Bethesda, MD 1.8 mi
20811 Bethesda, MD 1.8 mi

Find every ZIP code within 10 miles of 20889 →

Questions about this ZIP code

Where is ZIP code 20889?

20889 is in Bethesda, Maryland, in Montgomery County, part of the Washington-Arlington-Alexandria, DC-VA-MD-WV metropolitan area. Its published point location is 39.0038, -77.0870.

What county is 20889 in?

20889 lies in Montgomery County.

What area code is 20889?

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

What time zone is 20889 in?

20889 uses America/New_York.

How many people live in 20889?

About 584 people live in ZIP code 20889, in 21 households, at 1,497.4 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What ZIP codes are near 20889?

The closest are 20825 (0.8 mi), 20814 (0.9 mi), 20892 (0.9 mi), 20894 (1 mi) and 20815 (1.5 mi).

Is 20889 a PO Box ZIP code?

20889 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “20889 ZIP Code — Bethesda, Maryland (Montgomery County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/20889

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