Herndon, VA 20171 ZIP Code Profile

Related Place Profiles:
Herndon, VA | Oak Hill, VA

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ZIP Code 20171: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Herndon, VA 20171

Acceptable Alternative
Oak Hill, VA 20171

  • ZIP Code Type: STANDARD
  • County: Fairfax County
  • Centroid: Latitude 38.926, Longitude -77.404
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 880
  • PO Box Addresses: 358
  • Residential Addresses: 18,306
    • Multi-Family Addresses: 5,723
    • Single Family Addresses: 12,583

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


20171 ZIP Code Map

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Herndon, VA 20171 Data & Demographics (As of July 1, 2017)


Total Population 49,545
Daytime Population: Workers 30,124
Daytime Population: Residents 20,920
Total Daytime Population (TDP) 51,044
Ratio TDP/Total Population1 1.03
Population in Households 49,545
Population in Familes 42,858
Population in Group Qrtrs 0
Population Density2 4,210
Diversity Index3 67


Median Household Income $137,814
Average Household Income $178,321
Per Capita Income $62,910


Total Housing Units 18,021 (100%)
Owner Occupied HU 11,260 (62.5%)
Renter Occupied HU 6,219 (34.5%)
Vacant Housing Units 542 ( 3.0%)
Median Home Value $573,021
Average Home Value $602,760


Total Households 17,479
Average Household Size 2.83
Family Households 13,102
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.94% 0.81%
Households 0.9% 0.79%
Families 0.73% 0.67%
Median Household Income   1.36%
Per Capita Income   1.8%

Herndon, VA 20171 - Peer Comparisons by Rank and Percentile

The table below compares 20171 to the other 870 ZIP Codes in Virginia by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 25 97th
Population Density # 57 94th
Diversity Index # 69 92nd
Median Household Income # 17 98th
Per Capita Income # 25 97th

Additional comparisons and rankings can be made with a VERY EASY TO USE Virginia Census Data Comparison Tool.

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