Gainesville, VA 20155 ZIP Code Profile

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Gainesville, VA

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ZIP Code 20155: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Gainesville, VA 20155

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 611
  • Single Family Addresses: 11,026
  • Multi-Family Addresses: 769
  • County: Prince William County
  • Centroid: Latitude 38.783, Longitude -77.655
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes

Neighborhood 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 certain data.


20155 ZIP Code Map

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Gainesville, VA 20155 Data & Demographics (As of July 1, 2017)


Total Population 35,020
Daytime Population: Workers 13,203
Daytime Population: Residents 16,866
Total Daytime Population (TDP) 30,069
Ratio TDP/Total Population1 0.86
Population in Households 34,904
Population in Familes 31,245
Population in Group Qrtrs 116
Population Density2 1,513
Diversity Index3 65


Median Household Income $121,107
Average Household Income $145,717
Per Capita Income $48,368


Total Housing Units 12,086 (100%)
Owner Occupied HU 9,703 (80.3%)
Renter Occupied HU 1,896 (15.7%)
Vacant Housing Units 487 ( 4.0%)
Median Home Value $435,219
Average Home Value $476,018


Total Households 11,599
Average Household Size 3.01
Family Households 9,279
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 2.84% 2.37%
Households 2.57% 2.24%
Families 2.5% 2.16%
Median Household Income   1.63%
Per Capita Income   2.12%

Gainesville, VA 20155 - Peer Comparisons by Rank and Percentile

The table below compares 20155 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 # 68 92nd
Population Density # 143 84th
Diversity Index # 80 91st
Median Household Income # 34 96th
Per Capita Income # 76 91st

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

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