Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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/20412

20412

ZIP 20412 is in Washington, District of Columbia; area codes 202 and 771; Eastern time. Washington has 271 ZIP codes in all.

Type
No street area
Time zone
America/New_York
Coordinates
38.8953, -77.0221

The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

This ZIP code has no Census tabulation area of its own. Its point falls inside ZCTA 20004, whose figures describe that area — not this ZIP code.

☼ Live from 20412 — Washington, DC

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Where 20412 is

This ZIP code has no Census tabulation area, so there is no boundary to draw — the marker is its published point location.

★ Weird and wonderful facts about 20412
  • 🔢 Type 20412 into a pocket calculator and turn it upside down: ZIhOZ — not quite a word, sorry.
  • ➕ As a number, 20,412 = 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 7. Its digits add up to 9, a total 375 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 100111110111100
  • 🏠 Its numerical neighbours: 20411 (Washington, DC, 1 mi away) and 20413 (Washington, DC, 0 mi away).
  • 🔄 Backwards, 20412 becomes 21402 — and that is a real ZIP code: Annapolis, MD, 30 miles away.
  • 👥 43 other ZIP codes are made of exactly the same digits (01224, 01242, 02124, 02142, 02241, 02421, …). The farthest-flung twin is 42021 in Arlington, KY, 668 miles away.
  • 🧭 Farther south than 51% of all ZIP codes, and farther east than 81%.
  • 🎯1,151 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 20412 and you would come out at 38.90°S, 102.98°E — 868 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 54m of daylight. Shortest: 9h 26m.
🌙 The sky over 20412 today
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Source: USGS.

Land area

ZIP codes near 20412

ZIPCityDistance
20436 Washington, DC 0.1 mi
20049 Washington, DC 0.1 mi
20531 Washington, DC 0.1 mi
20576 Washington, DC 0.1 mi
20535 Washington, DC 0.2 mi
20408 Washington, DC 0.2 mi
20537 Washington, DC 0.2 mi
20073 Washington, DC 0.2 mi
20530 Washington, DC 0.2 mi
20442 Washington, DC 0.2 mi

Find every ZIP code within 10 miles of 20412 →

Questions about this ZIP code

Where is ZIP code 20412?

20412 is in Washington, District of Columbia, in District of Columbia, part of the Washington-Arlington-Alexandria, DC-VA-MD-WV metropolitan area. Its published point location is 38.8953, -77.0221.

What county is 20412 in?

20412 lies in District of Columbia.

What area code is 20412?

Washington uses area codes 202 and 771, from NANPA's telephone records.

What time zone is 20412 in?

20412 uses America/New_York.

What ZIP codes are near 20412?

The closest are 20436 (0.1 mi), 20049 (0.1 mi), 20531 (0.1 mi), 20576 (0.1 mi) and 20535 (0.2 mi).

Is 20412 a PO Box ZIP code?

Possibly. The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

Download or cite

Cite this page

zipcodes.pro. “20412 ZIP Code — Washington, District of Columbia.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/20412

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/20412.json

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