Dewey County SD Information


Dewey County Subdivisions

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  1. Dewey County 2018 Demographic Data
  2. Growth Rates forDewey 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

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


Total Population 5,506
Population in Households 5,487
Population in Familes 4,622
Population in Group Qrtrs 19
Population Density2 2
Diversity Index3 45


Median Household Income $40,286
Average Household Income $55,562
Per Capita Income $18,178


Total Housing Units 2,053 (100%)
Owner Occupied HU 1,103 (53.7%)
Renter Occupied HU 694 (33.8%)
Vacant Housing Units 256 (12.5%)
Median Home Value $75,764
Average Home Value $125,884


Total Households 1,797
Average Household Size 3.05
Family Households 1,270
Average Family Size 4
  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 0.46% 0.44%
Households 0.46% 0.44%
Families 0.3% 0.31%
Median Household Income   1.99%
Per Capita Income   1.85%


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, 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 # 35 48th
Population Density # 53 26th
Diversity Index # 9 88th
Median Household Income # 59 12th
Per Capita Income # 60 11th

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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