Union, SC Profile: Facts, Map & Data


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Union, South Carolina - Basic Facts

The City of Union had a population of 8,020 as of July 1, 2017.

The primary coordinate point for Union is located at latitude 34.7235 and longitude -81.6248 in Union County. The formal boundaries for the City of Union (see map below) encompass a land area of 7.97 sq. miles and a water area of 0 sq. miles. Union County is in the Eastern time zone (GMT -5). The elevation is 640 feet.

The City of Union (GNIS ID: 2405625) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

South Carolina is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The City of Union is located within Union Division of Union County.

Beneath the boundary map are tables with Union population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

Alternate Unofficial Names for Union: Union Station, Unionville.

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City of Union, SC Boundary Map

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Boundary Maps: Union Division | Union County | South Carolina Counties

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Union, SC Data & Demographics (As of July 1, 2017)


Total Population 8,020
Daytime Population: Workers 4,097
Daytime Population: Residents 4,850
Total Daytime Population (TDP) 8,947
Ratio TDP/Total Population1 1.12
Population in Households 7,766
Population in Familes 6,072
Population in Group Qrtrs 254
Population Density2 1,006
Diversity Index3 54


Median Household Income $31,871
Average Household Income $46,383
Per Capita Income $20,613


Total Housing Units 4,276 (100%)
Owner Occupied HU 1,946 (45.5%)
Renter Occupied HU 1,555 (36.4%)
Vacant Housing Units 775 (18.1%)
Median Home Value $86,119
Average Home Value $113,849


Total Households 3,501
Average Household Size 2.22
Family Households 2,119
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 -0.63% -0.68%
Households -0.73% -0.75%
Families -0.86% -0.9%
Median Household Income   2.57%
Per Capita Income   2.84%

Union, SC - Peer Comparisons by Rank and Percentile

The table below compares Union to the other 396 incorporated cities, towns and CDPs in South Carolina 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 # 72 82nd
Population Density # 129 68th
Diversity Index # 142 64th
Median Household Income # 296 26th
Per Capita Income # 199 50th

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

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