Custer County SD Information


Custer County Subdivisions

Custer County SD Data & Demographics (As of July 1, 2017)


Total Population 8,608
Daytime Population: Workers 3,412
Daytime Population: Residents 4,464
Total Daytime Population (TDP) 7,876
Ratio TDP/Total Population1 0.91
Population in Households 8,353
Population in Familes 6,697
Population in Group Qrtrs 255
Population Density2 6
Diversity Index3 21


Median Household Income $52,014
Average Household Income $66,171
Per Capita Income $30,179


Total Housing Units 5,016 (100%)
Owner Occupied HU 2,983 (59.5%)
Renter Occupied HU 846 (16.9%)
Vacant Housing Units 1,187 (23.7%)
Median Home Value $247,870
Average Home Value $272,410


Total Households 3,829
Average Household Size 2.18
Family Households 2,532
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 0.64% 0.78%
Households 0.72% 0.84%
Families 0.59% 0.76%
Median Household Income   4.06%
Per Capita Income   3.81%


Custer County SD - Peer Comparisons by Rank and Percentile

The table below compares Custer County to the other 66 counties and county equivalents in South Dakota 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 # 21 70th
Population Density # 34 48th
Diversity Index # 32 52nd
Median Household Income # 21 70th
Per Capita Income # 10 86th

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