📍 View location on OpenStreetMap (38.924600, -77.398240)
| Data Metric | Local Statistic |
|---|---|
| Postal / Zip Code | 20171 |
| Primary City | Herndon |
| State / Province | VA |
| County | Fairfax |
| Total Population | 51,286 |
| Population Density | 1,704.5 people/sq mi |
| Timezone | America/New_York |
| Metric | ZIP 20171 | Fairfax County records | VA records |
|---|---|---|---|
| Population estimate | 51,286 | 1,173,352 (sum) | 8,705,380 (sum) |
| Population Density | 1,704.5 /sq mi | -- | -- |
| County population rank | #3 of 42 | -- | -- |
| State population rank | #24 of 886 | -- | -- |
Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.
| ZIP Code | City | Distance | Population estimate |
|---|---|---|---|
| ZIP 20191 | Reston | 2.6 mi | 31,011 |
| ZIP 20151 | Chantilly | 3.2 mi | 22,610 |
| ZIP 22033 | Fairfax | 3.5 mi | 39,526 |
| ZIP 20170 | Herndon | 4.0 mi | 43,866 |
| ZIP 20190 | Reston | 4.0 mi | 22,012 |
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 →