ZIP Code 20171 - Herndon Virginia

ZIP Code 20171 is located in Herndon Virginia. Portions of 20171 are also in Floris and Difficult Run and Franklin Farm and McNair and Reston. 20171 is entirely within Fairfax County. Regionally, it is located in Metro DC.

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ZIP Code 20171 Quick Stats

ZIP Code NameHerndon
Primary CountyFairfax County
ZIP Code TypeStandard
Population (2022)51,081
Area Code(s)571 / 703
Current Time

ZIP Code 20171 Map

20171 Demographics

20171 can be classified socioeconomically as Upper 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 20171 is White. The majority race/ethnicity attending public schools in 20171 is Asian. The current unemployment level in 20171 is 3.0%.

Population Growth Rate-1.22%
Population Density4,318 People per Square Mile
Total Households16,206
Percentage High Income Households27.6%
Median Household Income (2021)$150,066
Average Adjusted Gross Income (2021)$423,230
Current Unemployment Rate (May 2024)3.0%
Majority Race/EthnictyWhite - 50.31%
Public School Majority Race/EthnictyAsian - 43.51%

20171 Race/Ethnicty Breakdown

Native American1210.24%
Hawaiian/Pac. Islander1590.32%

20171 Public School Race/Ethnicty Breakdown

Native American120.28%
Hawaiian/Pac. Islander20.05%

20171 Educational Attainment Levels

Highest Education Level AttainedTotalPercentage
Less Than 1 Year of College6822.31%
Bachelor Degree11,45238.84%
High School Diploma2,0136.83%
No High School Diploma2941%
GED or Alternate2820.96%
1 or More Years of College2,6919.13%
Associates Degree1,5015.09%
Masters Degree8,61429.21%
Professional Degree9333.16%
Doctorate Degree1,0243.47%

20171 Geography

Adjacent ZIP Codes
Cities/Towns in 20171
RegionMetro DC
Metropolitan/Micropolitan Stat AreaWashington-Arlington-Alexandria, DC-VA-MD-WV
Time ZoneEastern Daylight Time
IANA TimezoneAmerica/New_York
Area12 Square Miles

20171 Politics

US Congressional Districts in 20171
Virginia State Senate Districts in 20171
Virginia House of Delegates Districts in 20171

20171 Weather and Climate Data

Plant Hardiness ZoneZone 7a: 0F to 5F
Average First Frost DateOctober 11 - 20
Average Last Frost DateApril 21 - 31
Koppen-Geiger Climate ZoneDfa - Humid Continental Hot Summers
Ecoregion64a - Triassic Lowlands

20171 Annual Climate Data

Avg Min Temp (°F)22243241505964635542342643
Avg Max Temp (°F)42465566758387867968574666
Avg Precip (In.)3.122.743.583.214.213.913.653.753.923.363.313.1341.89

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