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zipcodes.pro — ZIP/20191

20191

ZIP 20191 is in Reston, Virginia, in Fairfax County; area codes 571 and 703; Eastern time. Reston has 6 ZIP codes; the others are 20190, 20194, 20195, 20196 and 22096.

Type
Standard
Time zone
America/New_York
County
Fairfax
Population
31,011
Coordinates
38.9333, -77.3501
☼ Live from 20191 — Reston, VA

Weather right now

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NEXRAD radar
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Local time: —

Where 20191 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.

★ Weird and wonderful facts about 20191
  • 🔢 Type 20191 into a pocket calculator and turn it upside down: IGIOZ — not quite a word, sorry.
  • ➕ As a number, 20,191 = 61 × 331. Its digits add up to 13, a total 1,179 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 100111011011111
  • 🏠 Its numerical neighbours: 20190 (Reston, VA, 2 mi away) and 20192 (Herndon, VA, 8 mi away).
  • 🔄 Backwards, 20191 becomes 19102 — and that is a real ZIP code: Philadelphia, PA, 136 miles away.
  • 👥 32 other ZIP codes are made of exactly the same digits (01129, 01921, 02119, 02191, 02911, 09112, …). The farthest-flung twin is 09112 in APO AE, a military post office, 4,122 miles away.
  • 🧭 Farther south than 51% of all ZIP codes, and farther east than 80%.
  • 🎯1,133 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 20191 and you would come out at 38.93°S, 102.65°E — 885 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 54m of daylight. Shortest: 9h 26m.
  • 📏 At 7.8 square miles of land, 20191 is bigger than 24% of ZIP codes — room for about 5.9 Central Parks.
🌙 The sky over 20191 today
  • Working out the sun…
🌋 Shake report
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Source: USGS.

People and housing

Population31,011This ZIP31,011
Households12,163This ZIP12,163
Housing units13,006This ZIP13,006
Median age39.3This ZIP39.3Virginia39.0US 38.9
Median household income$151,185This ZIP$151,185Virginia$93,170US $80,734
Median home value$641,800This ZIP$641,800Virginia$383,700US $332,700
Median gross rent$2,016This ZIP$2,016Virginia$1,579US $1,413
Bachelor's degree or higher67.5%This ZIP67.5%
Mean commute25.3 minThis ZIP25.3 min
Population density3,998.3 / sq miThis ZIP3,998.3 / sq mi

Business and tax activity

Business establishments974This ZIP974
Employees35,121This ZIP35,121
Annual payroll$4,036,392,000This ZIP$4,036,392,000
Tax returns filed16,320This ZIP16,320
Total adjusted gross income$2,226,371,000This ZIP$2,226,371,000

Land area

Land area7.76 sq miThis ZIP7.76 sq mi
Water area0.17 sq miThis ZIP0.17 sq mi

Other place names in 20191

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 20191

ZIPCityDistance
20190 Reston, VA 1.9 mi
20171 Herndon, VA 2.5 mi
22124 Oakton, VA 2.9 mi
20172 Herndon, VA 3.2 mi
22095 Herndon, VA 3.2 mi
20194 Reston, VA 3.3 mi
20170 Herndon, VA 3.6 mi
22181 Vienna, VA 3.8 mi
22182 Vienna, VA 4.0 mi
22033 Fairfax, VA 4.4 mi

Find every ZIP code within 10 miles of 20191 →

Questions about this ZIP code

Where is ZIP code 20191?

20191 is in Reston, Virginia, in Fairfax County, part of the Washington-Arlington-Alexandria, DC-VA-MD-WV metropolitan area. Its published point location is 38.9333, -77.3501.

What county is 20191 in?

20191 lies in Fairfax County.

What area code is 20191?

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

What time zone is 20191 in?

20191 uses America/New_York.

How many people live in 20191?

About 31,011 people live in ZIP code 20191, in 12,163 households, at 3,998.3 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 20191?

$151,185 a year, against $93,170 across Virginia.

What ZIP codes are near 20191?

The closest are 20190 (1.9 mi), 20171 (2.5 mi), 22124 (2.9 mi), 20172 (3.2 mi) and 22095 (3.2 mi).

Is 20191 a PO Box ZIP code?

20191 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “20191 ZIP Code — Reston, Virginia (Fairfax County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/20191

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/20191.json

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