22109

ZIP 22109 is in Mc Lean, Virginia, in Fairfax County; area codes 571 and 703; Eastern time. Mc Lean has 6 ZIP codes; the others are 22101, 22102, 22106, 22107 and 22108.

Type: No street area
Time zone: America/New_York
County: Fairfax
Metro area: Washington-Arlington-Alexandria, DC-VA-MD-WV
Coordinates: 38.9335, -77.1797

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 22101, whose figures describe that area — not this ZIP code.

☼ Live from 22109 — Mc Lean, VA

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Where 22109 is

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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 22109

🔢 Type 22109 into a pocket calculator and turn it upside down: GOIZZ — not quite a word, sorry.
➕ 22109 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 14, a total 1,416 other ZIP codes share.
💾In binary, the way a computer stores it: 101011001011101
🏠 Its numerical neighbours: 22108 (Mc Lean, VA, 0 mi away) and 22116 (Merrifield, VA, 5 mi away).
🔄 Backwards, 22109 becomes 90122, which is not a ZIP code at all.
👥 36 other ZIP codes are made of exactly the same digits (01229, 01922, 02129, 02912, 02921, 09212, …). The farthest-flung twin is 09212 in APO AE, a military post office, 4,065 miles away.
🧭 Farther south than 51% of all ZIP codes, and farther east than 81%.
🎯1,142 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
🌏 Dig straight through the Earth from 22109 and you would come out at 38.93°S, 102.82°E — 877 miles from Perth, Australia, the nearest big city to that spot.
☀Longest day of the year: 14h 54m of daylight. Shortest: 9h 26m.

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Source: USGS.

Land area

ZIP codes near 22109

ZIP	City	Distance
`22106`	Mc Lean, VA	0.0 mi
`22107`	Mc Lean, VA	0.3 mi
`22108`	Mc Lean, VA	0.3 mi
`22101`	Mc Lean, VA	0.9 mi
`22043`	Falls Church, VA	2.4 mi
`22213`	Arlington, VA	2.8 mi
`20818`	Cabin John, MD	2.9 mi
`22102`	Mc Lean, VA	2.9 mi
`20812`	Glen Echo, MD	3.0 mi
`22046`	Falls Church, VA	3.3 mi

Find every ZIP code within 10 miles of 22109 →

Questions about this ZIP code

Where is ZIP code 22109?

22109 is in Mc Lean, Virginia, in Fairfax County, part of the Washington-Arlington-Alexandria, DC-VA-MD-WV metropolitan area. Its published point location is 38.9335, -77.1797.

What county is 22109 in?

22109 lies in Fairfax County.

What area code is 22109?

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

What time zone is 22109 in?

22109 uses America/New_York.

What ZIP codes are near 22109?

The closest are 22106 (0 mi), 22107 (0.3 mi), 22108 (0.3 mi), 22101 (0.9 mi) and 22043 (2.4 mi).

Is 22109 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. “22109 ZIP Code — Mc Lean, Virginia (Fairfax County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/22109

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/22109.json

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