Union County SD Information


Union County Subdivisions

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  1. Union County 2018 Demographic Data
  2. Growth Rates forUnion County (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. South Dakota Research Tools (Easy Tools & Current Data)
  3. South Dakota Data Comparison Tool - 2018 Demographics

Union County SD Data & Demographics (As of July 1, 2018)


Total Population 16,208
Population in Households 16,119
Population in Familes 13,529
Population in Group Qrtrs 89
Population Density2 35
Diversity Index3 20


Median Household Income $66,336
Average Household Income $94,902
Per Capita Income $37,641


Total Housing Units 7,109 (100%)
Owner Occupied HU 4,705 (66.2%)
Renter Occupied HU 1,700 (23.9%)
Vacant Housing Units 704 ( 9.9%)
Median Home Value $189,603
Average Home Value $232,524


Total Households 6,405
Average Household Size 2.52
Family Households 4,437
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  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.


2010-2018 2018-2023
Population 1.44% 1.29%
Households 1.3% 1.2%
Families 1.13% 1.09%
Median Household Income   3.34%
Per Capita Income   3.22%


Union County SD - Peer Comparisons by Rank and Percentile

The table below compares Union County to the other 66 counties and county equivalents in South Dakota 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 # 13 82nd
Population Density # 8 89th
Diversity Index # 34 50th
Median Household Income # 2 98th
Per Capita Income # 1 100th

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

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South Dakota Census Data Comparison Tool

Compare South Dakota July 1, 2018 Data
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