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Zip Code 20166 — Sterling, VA

20166 is a ZIP Code associated with Sterling, VA, located within Loudoun. The postal region supports an estimated population of 14,949 residents across Data Pending housing units, with a population density of 212.3 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (38.971460, -77.463700)

Data MetricLocal Statistic
Postal / Zip Code20166
Primary CitySterling
State / ProvinceVA
CountyLoudoun
Total Population14,949
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density212.3 people/sq mi
TimezoneAmerica/New_York

How 20166 Compares

MetricZIP 20166Loudoun CountyVA State Average
Population14,949431,1778,705,380
Median IncomeData PendingN/AN/A
Population Density212.3 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 20148Ashburn3.9 mi64,021N/A
Zip 20170Herndon4.5 mi43,866N/A
Zip 20164Sterling4.6 mi43,436N/A
Zip 20171Herndon4.8 mi51,286N/A
Zip 20147Ashburn4.9 mi67,692N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →