Dewey County SD Information


Dewey County Subdivisions

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


Total Population 5,400
Population in Households 5,381
Population in Familes 4,526
Population in Group Qrtrs 19
Population Density1 2
Diversity Index2 48


Total Households 1,769
Average Household Size 3.04
Family Households 1,254
Average Family Size 4


Total Housing Units 2,069 (100%)
Owner Occupied HU 1,036 (50.1%)
Renter Occupied HU 733 (35.4%)
Vacant Housing Units 300 (14.5%)
Median Home Value $69,200
Average Home Value $112,283


Median Household Income $36,379
Average Household Income $53,282
Per Capita Income $17,500
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.3% 0.61%
Households 0.36% 0.65%
Families 0.19% 0.54%
Median Household Income   1.45%
Per Capita Income   1.59%
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.


Dewey County SD - Peer Comparisons by Rank and Percentile

The table below compares Dewey 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 # 35 48th
Population Density1 # 53 21st
Diversity Index2 # 8 89th
Median Household Income # 60 11th
Per Capita Income # 59 12th

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