South Run CDP, VA Profile: Facts & Data


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South Run CDP, Virginia - Basic Facts

The South Run Census Designated Place had a population of 6,420 as of July 1, 2020. South Run CDP ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Virginia. See peer rankings below.

The primary coordinate point for South Run CDP is located at latitude 38.7467 and longitude -77.2753 in Fairfax County. The formal boundaries for the South Run Census Designated Place encompass a land area of 2.53 sq. miles and a water area of 0.07 sq. miles.

The South Run Census Designated Place (GNIS ID: 2584922) has a U2 Census Class Code which indicates a census designated place without an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.


South Run CDP, VA Data & Demographics (As of July 1, 2020)


Total Population 6,420 (100%)
Population in Households 6,420 (100.0%)
Population in Families 6,140 (95.6%)
Population in Group Quarters1 0
Population Density 2,540
Diversity Index2 47


Median Household Income $200,001
Average Household Income $263,386
% of Income for Mortgage4 16%
Per Capita Income $86,395
Wealth Index5 417


Total HU (Housing Units) 2,124 (100%)
Owner Occupied HU 2,012 (94.7%)
Renter Occupied HU 95 ( 4.5%)
Vacant Housing Units 17 ( 0.8%)
Median Home Value $774,976
Average Home Value $754,011
Housing Affordability Index3 140


Total Households 2,107
Average Household Size 3.05
Family Households 1,946
Average Family Size 3
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  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 races 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.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.


2010-2020 2020-2025
Population 0.05% 0.01%
Households 0.07% -0.01%
Families 0.05% -0.02%
Median Household Income   0.0%
Per Capita Income   1.17%
Owner Occupied HU   0.01%


South Run CDP, VA - Peer Comparisons by Rank and Percentile

The table below compares South Run CDP to the other 593 incorporated cities, towns and CDPs in Virginia by rank and percentile using July 1, 2020 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 # 171 71st
Population Density # 115 81st
Median Household Income # 9 100th
Housing Affordability Index # 169 28th
Per Capita Income # 6 99th
Diversity Index # 300 49th

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

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