Triangle, VA Profile: Facts & Data


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Triangle, Virginia - Basic Facts

The Triangle Census Designated Place had a population of 9,401 as of July 1, 2018. Triangle ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Virginia. See peer rankings below.

The primary coordinate point for Triangle is located at latitude 38.5471 and longitude -77.3185 in Prince William County. The formal boundaries for the Triangle Census Designated Place (see map below) encompass a land area of 2.81 sq. miles and a water area of 0.18 sq. miles. Prince William County is in the Eastern time zone (GMT -5). The elevation is 105 feet.

The Triangle Census Designated Place (GNIS ID: 2390404) has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

Beneath the boundary map are tables with Triangle population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2018.

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Triangle, VA Data & Demographics (As of July 1, 2018)


Total Population 9,401
Population in Households 9,355
Population in Familes 7,739
Population in Group Qrtrs 46
Population Density1 3,340
Diversity Index2 82


Median Household Income $83,600
Average Household Income $101,766
Per Capita Income $34,297


Total Housing Units 3,422 (100%)
Owner Occupied HU 1,598 (46.7%)
Renter Occupied HU 1,591 (46.5%)
Vacant Housing Units 233 ( 6.8%)
Median Home Value $407,728
Average Home Value $412,359


Total Households 3,189
Average Household Size 2.93
Family Households 2,210
Average Family Size 4
  1. Population Density = Total Population per square mile.
  2. 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 1.69% 1.47%
Households 1.38% 1.36%
Families 1.44% 1.26%
Median Household Income   3.65%
Per Capita Income   2.8%

Triangle, VA - Peer Comparisons by Rank and Percentile

The table below compares Triangle to the other 593 incorporated cities, towns and CDPs in Virginia by rank and percentile using July 1, 2018 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 # 128 79th
Population Density # 75 88th
Diversity Index # 25 96th
Median Household Income # 130 78th
Per Capita Income # 171 71st

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

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