ZIP code 20166
Where is ZIP code 20166?
Sterling, Virginia
Loudoun County · Standard ZIP code
ZIP code 20166 belongs to Sterling, Virginia in Loudoun County. 20166 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Eastern Time zone and uses area codes 571 and 703. About 14,949 people live in the 20166 area, where the median household income is $133,401. The closest ZIP codes are 20103 (Dulles, 1.6 mi northeast), 20101 (Dulles, 2.2 mi northeast) and 20189 (Dulles, 2.5 mi northeast).
| ZIP code | 20166 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Sterling |
| Also accepted | Arcola, Dulles |
| State | Virginia (VA) |
| County | Loudoun County |
| Time zone | Eastern Time · now |
| Area codes | 571, 703 |
| Coordinates | 38.9814, -77.4723 map |
| 3-digit prefix | 201 |
Population and income in 20166
| Population | 14,949 · higher than 78% of Virginia ZIP codes |
|---|---|
| People per square mile | 550 · higher than 75% of Virginia ZIP codes |
| Median age | 34 years · lower than 89% of Virginia ZIP codes |
| Men / women | 54% / 47% |
| Median household income | $133,401 · higher than 87% of Virginia ZIP codes |
| Income per person | $58,048 |
| Below the poverty line | 4.1% |
| Bachelor’s degree or higher | 65% of adults 25+ |
| Median home value | $618,800 · higher than 89% of Virginia ZIP codes |
| Median rent | $2,362 a month |
| Housing units | 5,552 |
| Households | 5,473 (2.73 people on average) |
| Owners / renters | 50% / 51% |
| Land area | 27.19 sq mi (plus 0.34 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 20166. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 20166
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 20103 | Dulles, VA | 1.6 mi NE | Unique |
| 20101 | Dulles, VA | 2.2 mi NE | Unique |
| 20189 | Dulles, VA | 2.5 mi NE | Standard |
| 20163 | Sterling, VA | 2.9 mi NE | PO Box only |
| 20167 | Sterling, VA | 2.9 mi NE | PO Box only |
| 20148 | Ashburn, VA | 3.8 mi NW | Standard |
| 20147 | Ashburn, VA | 3.9 mi N | Standard |
| 20149 | Ashburn, VA | 4.4 mi N | Unique |
| 20172 | Herndon, VA | 4.7 mi E | PO Box only |
| 22095 | Herndon, VA | 4.7 mi E | Unique |
| 20164 | Sterling, VA | 4.9 mi NE | Standard |
| 20170 | Herndon, VA | 5.6 mi E | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 20166 or measure the distance to another ZIP code.
How to address mail to 20166
123 MAIN ST
STERLING VA 20166
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts ARCOLA and DULLES as the city name for 20166. Adding the 4-digit ZIP+4 code (20166-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Sterling, VA
All Sterling ZIP codes with population and income →
Questions
- What city is ZIP code 20166?
- 20166 is a Sterling, Virginia ZIP code. Arcola and Dulles are also accepted as the city name.
- What county is 20166 in?
- ZIP code 20166 is in Loudoun County, Virginia.
- What time zone is ZIP code 20166 in?
- 20166 is in the Eastern Time zone (America/New_York).
- What area code is 20166?
- Phone numbers in ZIP code 20166 use area codes 571 and 703.
- What is the population of ZIP code 20166?
- About 14,949 people live in ZIP code 20166, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 20166?
- The median household income in 20166 is $133,401 a year, higher than 87% of Virginia ZIP codes.
- What ZIP codes are near 20166?
- The nearest ZIP codes to 20166 are 20103 (Dulles, 1.6 miles), 20101 (Dulles, 2.2 miles), 20189 (Dulles, 2.5 miles) and 20163 (Sterling, 2.9 miles).