South Dakota Census & Demographic Data - July 1, 2018


South Dakota Census Data

The tables below provide updated data and demographic estimates for South Dakota as of July 1, 2018. Our South Dakota Census Data Comparison Tool allows you to compare and rank SD cities, towns, ZIP Codes and Counties.

South Dakota Data & Demographics (As of July 1, 2018)


Total Population 889,876
Population in Households 856,180
Population in Familes 677,896
Population in Group Qrtrs 33,696
Population Density2 12
Diversity Index3 35


Median Household Income $54,091
Average Household Income $71,498
Per Capita Income $28,844


Total Housing Units 396,694 (100%)
Owner Occupied HU 237,471 (59.9%)
Renter Occupied HU 115,349 (29.1%)
Vacant Housing Units 43,874 (11.1%)
Median Home Value $164,655
Average Home Value $202,354


Total Households 352,820
Average Household Size 2.43
Family Households 223,014
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 1.08% 1.05%
Households 1.1% 1.06%
Families 0.91% 0.94%
Median Household Income   2.06%
Per Capita Income   2.44%