Union County SD Information


Union County Subdivisions

Union County SD Data & Demographics (As of July 1, 2016)


Total Population 15,840
Population in Households 15,751
Population in Familes 13,198
Population in Group Qrtrs 89
Population Density1 34
Diversity Index2 19


Total Households 6,248
Average Household Size 2.52
Family Households 4,341
Average Family Size 3


Total Housing Units 6,901 (100%)
Owner Occupied HU 4,643 (67.3%)
Renter Occupied HU 1,605 (23.3%)
Vacant Housing Units 653 ( 9.5%)
Median Home Value $177,459
Average Home Value $224,381


Median Household Income $62,418
Average Household Income $89,358
Per Capita Income $35,388
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 1.54% 1.54%
Households 1.32% 1.4%
Families 1.14% 1.28%
Median Household Income   2.75%
Per Capita Income   2.35%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.


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, 2016 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 Density1 # 8 89th
Diversity Index2 # 35 48th
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.