ZIP Code 20166 - Sterling Virginia
Overview
ZIP Code 20166 is located in Sterling Virginia. Portions of 20166 are also in Arcola and Dulles Town Center and Ashburn and Loudoun Valley Estates and Kincora and Oak Grove and Dulles. 20166 is entirely within Loudoun County. Regionally, 20166 is located in Metro DC.
ZIP Code 20166 Quick Stats
| ZIP Code Name | Sterling |
| Primary County | Loudoun County |
| ZIP Code Type | Standard |
| Population (2022) | 13,479 |
| Area Code(s) | 571 / 703 |
| Current Time | EDT |
ZIP Code 20166 Map
20166 Demographics
20166 can be classified socioeconomically as Middle Class class compared to other ZIP Codes in Virginia based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 20166 is White. The current unemployment level in 20166 is 3.8%.
| Population | 13,479 |
| Population Growth Rate | 31.06% |
| Population Density | 510 People per Square Mile |
| Total Households | 3,353 |
| Percentage High Income Households | 12.5% |
| Median Household Income (2021) | $121,350 |
| Average Adjusted Gross Income (2021) | $342,520 |
| Current Unemployment Rate (May 2026) | 3.8% |
| Sales Tax Rate (2025) | 6% |
| Majority Race/Ethnicity | White - 35.48% |
20166 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|---|---|
| White | 4,855 | 35.44% |
| Black | 1,486 | 10.85% |
| Hispanic | 3,052 | 22.28% |
| Asian | 4,227 | 30.85% |
| Native American | 65 | 0.47% |
| Hawaiian/Pac. Islander | 16 | 0.12% |
20166 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 75 | 1.31% |
| Bachelor Degree | 2,661 | 46.4% |
| High School Diploma | 700 | 12.21% |
| No High School Diploma | 93 | 1.62% |
| GED or Alternate | 119 | 2.07% |
| 1 or More Years of College | 680 | 11.86% |
| Associates Degree | 279 | 4.86% |
| Masters Degree | 1,017 | 17.73% |
| Professional Degree | 57 | 0.99% |
| Doctorate Degree | 54 | 0.94% |
20166 Geography
| Coordinates | 38.97285843, -77.46411133 |
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| Cities/Towns in 20166 | |
| Neighborhoods in 20166 | |
| Region | Metro DC |
| Metropolitan/Micropolitan Stat Area | Washington-Arlington-Alexandria, DC-VA-MD-WV |
| Time Zone | Eastern Daylight Time |
| IANA Timezone | America/New_York |
| Area | 26 Square Miles |
20166 Schools
| School Districts in 20166 | |
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| Middle Schools in 20166 | |
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20166 Weather and Climate Data
| Plant Hardiness Zone | Zone 6b: -5F to 0F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average First Frost Date | October 11 - 20 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average Last Frost Date | April 21 - 31 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Koppen-Geiger Climate Zone | Dfa - Humid Continental Hot Summers | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 64a - Triassic Lowlands | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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