Lake County SD Information


Lake County Subdivisions

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


Total Population 12,423
Daytime Population: Workers 6,182
Daytime Population: Residents 6,005
Total Daytime Population (TDP) 12,187
Ratio TDP/Total Population1 0.98
Population in Households 11,549
Population in Familes 8,957
Population in Group Qrtrs 874
Population Density2 22
Diversity Index3 18


Median Household Income $53,067
Average Household Income $67,562
Per Capita Income $28,357


Total Housing Units 6,150 (100%)
Owner Occupied HU 3,567 (58.0%)
Renter Occupied HU 1,482 (24.1%)
Vacant Housing Units 1,101 (17.9%)
Median Home Value $146,817
Average Home Value $188,373


Total Households 5,049
Average Household Size 2.29
Family Households 3,136
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 1.44% 1.51%
Households 1.65% 1.68%
Families 1.51% 1.58%
Median Household Income   1.62%
Per Capita Income   2.8%


Lake County SD - Peer Comparisons by Rank and Percentile

The table below compares Lake 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 # 16 77th
Population Density # 13 82nd
Diversity Index # 39 42nd
Median Household Income # 16 77th
Per Capita Income # 30 56th

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