20102

ZIP 20102 is in Dulles, Virginia, in Loudoun County; area codes 703 and 571; Eastern time. Dulles has 5 ZIP codes; the others are 20101, 20103, 20104 and 20189.

Type: No street area
Time zone: America/New_York
County: Loudoun
Metro area: Washington-Arlington-Alexandria, DC-VA-MD-WV
Coordinates: 39.0853, -77.6452

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 20175, whose figures describe that area — not this ZIP code.

☼ Live from 20102 — Dulles, VA

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Where 20102 is

Loading map… Open 20102 on OpenStreetMap

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 20102

🔢 Type 20102 into a pocket calculator and turn it upside down: ZOIOZ — not quite a word, sorry.
⇆20102 reads the same backwards. It is one of only 412 palindromic ZIP codes.
➕ As a number, 20,102 = 2 × 19 × 23 × 23. Its digits add up to 5, a total 55 other ZIP codes share.
💾In binary, the way a computer stores it: 100111010000110
🏠 Its numerical neighbours: 20101 (Dulles, VA, 12 mi away) and 20103 (Dulles, VA, 12 mi away).
👥 14 other ZIP codes are made of exactly the same digits (01022, 01202, 01220, 02021, 02120, 02201, …). The farthest-flung twin is 02210 in Boston, MA, 413 miles away.
🧭 Farther south than 50% of all ZIP codes, and farther east than 79%.
🎯1,115 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
🌏 Dig straight through the Earth from 20102 and you would come out at 39.09°S, 102.35°E — 904 miles from Perth, Australia, the nearest big city to that spot.
☀Longest day of the year: 14h 55m of daylight. Shortest: 9h 25m.

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Source: USGS.

Land area

ZIP codes near 20102

ZIP	City	Distance
`20104`	Dulles, VA	0.0 mi
`20146`	Ashburn, VA	0.0 mi
`20160`	Lincoln, VA	2.5 mi
`20175`	Leesburg, VA	2.7 mi
`20159`	Hamilton, VA	3.5 mi
`20158`	Hamilton, VA	3.8 mi
`20177`	Leesburg, VA	4.9 mi
`20178`	Leesburg, VA	4.9 mi
`20134`	Purcellville, VA	5.6 mi
`20131`	Philomont, VA	5.6 mi

Find every ZIP code within 10 miles of 20102 →

Questions about this ZIP code

Where is ZIP code 20102?

20102 is in Dulles, Virginia, in Loudoun County, part of the Washington-Arlington-Alexandria, DC-VA-MD-WV metropolitan area. Its published point location is 39.0853, -77.6452.

What county is 20102 in?

20102 lies in Loudoun County.

What area code is 20102?

Dulles uses area codes 703 and 571, from NANPA's telephone records.

What time zone is 20102 in?

20102 uses America/New_York.

What ZIP codes are near 20102?

The closest are 20104 (0 mi), 20146 (0 mi), 20160 (2.5 mi), 20175 (2.7 mi) and 20159 (3.5 mi).

Is 20102 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. “20102 ZIP Code — Dulles, Virginia (Loudoun County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/20102

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/20102.json

Underlying data is public domain or openly licensed — sources, vintages and licences.