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zipcodes.pro — ZIP/20166

20166

ZIP 20166 is in Sterling, Virginia, in Loudoun County; area codes 571 and 703; Eastern time. Sterling has 5 ZIP codes; the others are 20163, 20164, 20165 and 20167.

Type
Standard
Time zone
America/New_York
County
Loudoun
Population
14,949
Coordinates
38.9700, -77.4640
☼ Live from 20166 — Sterling, VA

Weather right now

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NEXRAD radar
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Local time: —

Where 20166 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 20166
  • 🔢 Type 20166 into a pocket calculator and turn it upside down: ggIOZ — not quite a word, sorry.
  • ➕ As a number, 20,166 = 2 × 3 × 3361. Its digits add up to 15, a total 1,657 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 100111011000110
  • 🏠 Its numerical neighbours: 20165 (Sterling, VA, 7 mi away) and 20167 (Sterling, VA, 3 mi away).
  • 🔄 Backwards, 20166 becomes 66102 — and that is a real ZIP code: Kansas City, KS, 923 miles away.
  • 👥 31 other ZIP codes are made of exactly the same digits (01266, 02661, 06126, 06612, 12066, 16260, …). The farthest-flung twin is 66021 in Edgerton, KS, 942 miles away.
  • 🧭 Farther south than 51% of all ZIP codes, and farther east than 80%.
  • 🎯1,126 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 20166 and you would come out at 38.97°S, 102.54°E — 892 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 14h 54m of daylight. Shortest: 9h 26m.
  • 📏 At 27.2 square miles of land, 20166 is bigger than 43% of ZIP codes — room for about 21 Central Parks.
🌙 The sky over 20166 today
  • Working out the sun…
🌋 Shake report
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Source: USGS.

People and housing

Population14,949This ZIP14,949
Households5,473This ZIP5,473
Housing units5,552This ZIP5,552
Median age34.0This ZIP34.0Virginia39.0US 38.9
Median household income$133,401This ZIP$133,401Virginia$93,170US $80,734
Median home value$618,800This ZIP$618,800Virginia$383,700US $332,700
Median gross rent$2,362This ZIP$2,362Virginia$1,579US $1,413
Bachelor's degree or higher65.3%This ZIP65.3%
Mean commute27.9 minThis ZIP27.9 min
Population density549.8 / sq miThis ZIP549.8 / sq mi

Business and tax activity

Business establishments1,902This ZIP1,902
Employees67,063This ZIP67,063
Annual payroll$5,263,414,000This ZIP$5,263,414,000
Tax returns filed8,060This ZIP8,060
Total adjusted gross income$786,868,000This ZIP$786,868,000

Land area

Land area27.19 sq miThis ZIP27.19 sq mi
Water area0.34 sq miThis ZIP0.34 sq mi

Other place names in 20166

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

ZIP codes near 20166

ZIPCityDistance
20598 Dhs, VA 1.7 mi
20103 Dulles, VA 2.0 mi
20101 Dulles, VA 2.5 mi
20189 Dulles, VA 2.9 mi
20163 Sterling, VA 3.1 mi
20167 Sterling, VA 3.1 mi
20148 Ashburn, VA 4.0 mi
20172 Herndon, VA 4.2 mi
22095 Herndon, VA 4.2 mi
20170 Herndon, VA 4.6 mi

Find every ZIP code within 10 miles of 20166 →

Questions about this ZIP code

Where is ZIP code 20166?

20166 is in Sterling, Virginia, in Loudoun County, part of the Washington-Arlington-Alexandria, DC-VA-MD-WV metropolitan area. Its published point location is 38.9700, -77.4640.

What county is 20166 in?

20166 lies in Loudoun County.

What area code is 20166?

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

What time zone is 20166 in?

20166 uses America/New_York.

How many people live in 20166?

About 14,949 people live in ZIP code 20166, in 5,473 households, at 549.8 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 20166?

$133,401 a year, against $93,170 across Virginia.

What ZIP codes are near 20166?

The closest are 20598 (1.7 mi), 20103 (2 mi), 20101 (2.5 mi), 20189 (2.9 mi) and 20163 (3.1 mi).

Is 20166 a PO Box ZIP code?

20166 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “20166 ZIP Code — Sterling, Virginia (Loudoun County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/20166

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/20166.json

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