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/20149

20149

ZIP 20149 is in Ashburn, Virginia, in Loudoun County; Eastern time. Ashburn has 4 ZIP codes; the others are 20146, 20147 and 20148.

Type
No street area
Time zone
America/New_York
County
Loudoun
Coordinates
39.0437, -77.4875

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 20147, whose figures describe that area — not this ZIP code.

☼ Live from 20149 — Ashburn, VA

Weather right now

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NEXRAD radar
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Local time: —

Where 20149 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 20149
  • 🔢 Type 20149 into a pocket calculator and turn it upside down: GhIOZ — not quite a word, sorry.
  • ➕ 20149 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 16, a total 1,922 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 100111010110101
  • 🏠 Its numerical neighbours: 20148 (Ashburn, VA, 4 mi away) and 20151 (Chantilly, VA, 10 mi away).
  • 🔄 Backwards, 20149 becomes 94102 — and that is a real ZIP code: San Francisco, CA, 2,409 miles away.
  • 👥 56 other ZIP codes are made of exactly the same digits (02149, 02914, 04219, 04291, 04912, 04921, …). The farthest-flung twin is 09142 in APO AE, a military post office, 4,187 miles away.
  • 🧭 Farther south than 50% of all ZIP codes, and farther east than 80%.
  • 🎯1,124 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 20149 and you would come out at 39.04°S, 102.51°E — 895 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 55m of daylight. Shortest: 9h 25m.
🌙 The sky over 20149 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

Land area

ZIP codes near 20149

ZIPCityDistance
20147 Ashburn, VA 0.5 mi
20189 Dulles, VA 3.4 mi
20101 Dulles, VA 3.8 mi
20103 Dulles, VA 3.9 mi
20163 Sterling, VA 4.1 mi
20167 Sterling, VA 4.1 mi
20148 Ashburn, VA 4.2 mi
20598 Dhs, VA 4.3 mi
20165 Sterling, VA 5.2 mi
20166 Sterling, VA 5.2 mi

Find every ZIP code within 10 miles of 20149 →

Questions about this ZIP code

Where is ZIP code 20149?

20149 is in Ashburn, Virginia, in Loudoun County, part of the Washington-Arlington-Alexandria, DC-VA-MD-WV metropolitan area. Its published point location is 39.0437, -77.4875.

What county is 20149 in?

20149 lies in Loudoun County.

What time zone is 20149 in?

20149 uses America/New_York.

What ZIP codes are near 20149?

The closest are 20147 (0.5 mi), 20189 (3.4 mi), 20101 (3.8 mi), 20103 (3.9 mi) and 20163 (4.1 mi).

Is 20149 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.

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Cite this page

zipcodes.pro. “20149 ZIP Code — Ashburn, Virginia (Loudoun County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/20149

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/20149.json

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