20170
ZIP 20170 is in Herndon, Virginia, in Fairfax County; area codes 571 and 703; Eastern time. Herndon has 5 ZIP codes; the others are 20171, 20172, 20192 and 22095.
- Type
- Standard
- Time zone
- America/New_York
- County
- Fairfax
- Metro area
- Washington-Arlington-Alexandria, DC-VA-MD-WV
- Population
- 43,866
- Coordinates
- 38.9798, -77.3798
Weather right now
Asking the National Weather Service…
Where 20170 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 20170 into a pocket calculator and turn it upside down: OLIOZ — not quite a word, sorry.
- ➕ As a number, 20,170 = 2 × 5 × 2017. Its digits add up to 10, a total 513 other ZIP codes share.
- 💾In binary, the way a computer stores it:
100111011001010 - 🏠 Its numerical neighbours: 20169 (Haymarket, VA, 16 mi away) and 20171 (Herndon, VA, 4 mi away).
- 🔄 Backwards, 20170 becomes 07102 — and that is a real ZIP code: Newark, NJ, 209 miles away.
- 👥 27 other ZIP codes are made of exactly the same digits (00721, 01027, 01072, 01270, 01702, 01720, …). The farthest-flung twin is 00721 in Palmer, PR, 1,585 miles away.
- 🧭 Farther south than 51% of all ZIP codes, and farther east than 80%.
- 🎯1,131 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 20170 and you would come out at 38.98°S, 102.62°E — 888 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 14h 54m of daylight. Shortest: 9h 26m.
- 📏 At 8.8 square miles of land, 20170 is bigger than 25% of ZIP codes — room for about 6.6 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 43,866This ZIP43,866 |
|---|---|
| Households | 13,583This ZIP13,583 |
| Housing units | 14,056This ZIP14,056 |
| Median age | 35.2This ZIP35.2Virginia39.0US 38.9 |
| Median household income | $159,466This ZIP$159,466Virginia$93,170US $80,734 |
| Median home value | $647,200This ZIP$647,200Virginia$383,700US $332,700 |
| Median gross rent | $2,331This ZIP$2,331Virginia$1,579US $1,413 |
| Bachelor's degree or higher | 57.3%This ZIP57.3% |
| Mean commute | 27.4 minThis ZIP27.4 min |
| Population density | 5,010.4 / sq miThis ZIP5,010.4 / sq mi |
Business and tax activity
| Business establishments | 1,348This ZIP1,348 |
|---|---|
| Employees | 26,652This ZIP26,652 |
| Annual payroll | $2,770,174,000This ZIP$2,770,174,000 |
| Tax returns filed | 22,270This ZIP22,270 |
| Total adjusted gross income | $2,321,916,000This ZIP$2,321,916,000 |
Land area
| Land area | 8.76 sq miThis ZIP8.76 sq mi |
|---|---|
| Water area | 0.04 sq miThis ZIP0.04 sq mi |
Other place names in 20170
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 20170
| ZIP | City | Distance |
|---|---|---|
20172 | Herndon, VA | 0.8 mi |
22095 | Herndon, VA | 0.8 mi |
20194 | Reston, VA | 2.1 mi |
20164 | Sterling, VA | 2.3 mi |
20190 | Reston, VA | 2.5 mi |
20163 | Sterling, VA | 3.2 mi |
20167 | Sterling, VA | 3.2 mi |
20191 | Reston, VA | 3.6 mi |
20101 | Dulles, VA | 3.7 mi |
20598 | Dhs, VA | 3.7 mi |
Find every ZIP code within 10 miles of 20170 →
Questions about this ZIP code
Where is ZIP code 20170?
20170 is in Herndon, Virginia, in Fairfax County, part of the Washington-Arlington-Alexandria, DC-VA-MD-WV metropolitan area. Its published point location is 38.9798, -77.3798.
What county is 20170 in?
20170 lies in Fairfax County.
What area code is 20170?
Herndon uses area codes 571 and 703, from NANPA's telephone records.
What time zone is 20170 in?
20170 uses America/New_York.
How many people live in 20170?
About 43,866 people live in ZIP code 20170, in 13,583 households, at 5,010.4 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 20170?
$159,466 a year, against $93,170 across Virginia.
What ZIP codes are near 20170?
The closest are 20172 (0.8 mi), 22095 (0.8 mi), 20194 (2.1 mi), 20164 (2.3 mi) and 20190 (2.5 mi).
Is 20170 a PO Box ZIP code?
20170 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “20170 ZIP Code — Herndon, Virginia (Fairfax County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/20170
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/20170.json Underlying data is public domain or openly licensed — sources, vintages and licences.