22031
ZIP 22031 is in Fairfax, Virginia, mostly in Fairfax County; Eastern time. Fairfax has 9 ZIP codes in all.
- Type
- Standard
- Time zone
- America/New_York
- County
- Fairfax +1 more
- Metro area
- Washington-Arlington-Alexandria, DC-VA-MD-WV
- Population
- 37,276
- Coordinates
- 38.8589, -77.2603
Weather right now
Asking the National Weather Service…
Where 22031 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.
- 🔢 Type 22031 into a pocket calculator and turn it upside down: IEOZZ — not quite a word, sorry.
- ➕ 22031 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 8, a total 251 other ZIP codes share.
- 💾In binary, the way a computer stores it:
101011000001111 - 🏠 Its numerical neighbours: 22030 (Fairfax, VA, 5 mi away) and 22032 (Fairfax, VA, 3 mi away).
- 🔄 Backwards, 22031 becomes 13022 — and that is a real ZIP code: Auburn, NY, 284 miles away.
- 👥 33 other ZIP codes are made of exactly the same digits (01223, 02123, 02132, 03221, 12023, 12032, …). The farthest-flung twin is 32102 in Astor, FL, 714 miles away.
- 🧭 Farther south than 52% of all ZIP codes, and farther east than 80%.
- 🎯1,138 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 22031 and you would come out at 38.86°S, 102.74°E — 878 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 54m of daylight. Shortest: 9h 26m.
- 📏 At 7.1 square miles of land, 22031 is bigger than 23% of ZIP codes — room for about 5.4 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 37,276This ZIP37,276 |
|---|---|
| Households | 14,825This ZIP14,825 |
| Housing units | 15,431This ZIP15,431 |
| Median age | 35.3This ZIP35.3Virginia39.0US 38.9 |
| Median household income | $134,577This ZIP$134,577Virginia$93,170US $80,734 |
| Median home value | $723,600This ZIP$723,600Virginia$383,700US $332,700 |
| Median gross rent | $2,258This ZIP$2,258Virginia$1,579US $1,413 |
| Bachelor's degree or higher | 73.6%This ZIP73.6% |
| Mean commute | 28.9 minThis ZIP28.9 min |
| Population density | 5,230.3 / sq miThis ZIP5,230.3 / sq mi |
Business and tax activity
| Business establishments | 1,545This ZIP1,545 |
|---|---|
| Employees | 27,080This ZIP27,080 |
| Annual payroll | $2,044,581,000This ZIP$2,044,581,000 |
| Tax returns filed | 17,790This ZIP17,790 |
| Total adjusted gross income | $2,197,038,000This ZIP$2,197,038,000 |
Land area
| Land area | 7.13 sq miThis ZIP7.13 sq mi |
|---|---|
| Water area | 0.05 sq miThis ZIP0.05 sq mi |
Counties 22031 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Fairfax County | 82.4% |
| Fairfax city | 17.6% |
Other place names in 22031
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 22031
| ZIP | City | Distance |
|---|---|---|
22116 | Merrifield, VA | 1.6 mi |
22081 | Merrifield, VA | 1.7 mi |
22082 | Merrifield, VA | 2.1 mi |
22038 | Fairfax, VA | 2.3 mi |
20122 | Centreville, VA | 2.4 mi |
20153 | Chantilly, VA | 2.4 mi |
20192 | Herndon, VA | 2.4 mi |
20195 | Reston, VA | 2.4 mi |
20196 | Reston, VA | 2.4 mi |
22009 | Burke, VA | 2.4 mi |
Find every ZIP code within 10 miles of 22031 →
Questions about this ZIP code
Where is ZIP code 22031?
22031 is in Fairfax, Virginia, in Fairfax County, part of the Washington-Arlington-Alexandria, DC-VA-MD-WV metropolitan area. Its published point location is 38.8589, -77.2603.
What county is 22031 in?
22031 spans 2 counties: Fairfax County and Fairfax city. Most of it falls in Fairfax County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.
What time zone is 22031 in?
22031 uses America/New_York.
How many people live in 22031?
About 37,276 people live in ZIP code 22031, in 14,825 households, at 5,230.3 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What is the median household income in 22031?
$134,577 a year, against $93,170 across Virginia.
What ZIP codes are near 22031?
The closest are 22116 (1.6 mi), 22081 (1.7 mi), 22082 (2.1 mi), 22038 (2.3 mi) and 20122 (2.4 mi).
Is 22031 a PO Box ZIP code?
22031 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “22031 ZIP Code — Fairfax, Virginia (Fairfax County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/22031
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/22031.json Underlying data is public domain or openly licensed — sources, vintages and licences.