Lake township Flag

Lake township

County:
Roberts County
County Seat:
No
Area (mi²):
36.829
State:
South Dakota

Lake township is located in Roberts County, South Dakota. Lake township has a 2026 population of 261. Lake township is currently declining at a rate of -0.38% annually but its population has increased by 0.77% since the most recent census, which recorded a population of 259 in 2020.

The median household income in Lake township is $76,339 with a poverty rate of 4.59%. The median age in Lake township is 60.2 years: 61 years for males, and 59.1 years for females. For every 100 females there are 121.1 males.

261
Total Population
7.1
Density (mi²)
-1 -0.38%
Growth

Lake township Population

Lake township Population

Year ↓
Population
Growth
Annual Change
2026261-1-0.38%
2025262-1-0.38%
202426331.15%
202326020.78%
202225800%
2021258-1-0.39%
202025900%
201926210.38%
201826141.56%
201725731.18%
201625400%
2015254-1-0.39%
201425520.79%
2013253-2-0.78%
201225510.39%
201125452.01%
201025010.4%

Median Age

Overall: 60.2 years
Female: 59.1 years
Male: 61 years

Lake township Adults

There are 251 adults, (95 of whom are seniors) in Lake township.

Sex Ratio

Female: 128 (45.2%)
Male: 155 (54.8%)

Demographics

The racial composition of Lake township includes 98.94% White, and smaller percentages for Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White28098.94%
Native American31.06%
Race
Population ↓
Percentage (of total)
White28098.94%
Native American31.06%

Lake township Marital Status

Economics and Income Statistics

Lake township's average per capita income is $50,833. Household income levels show a median of $76,339. The poverty rate stands at 4.59%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Families$88,864$102,863
Married Families$88,750-
Households$76,339$93,603
Non Families$72,019$75,288

$50,833

Average Income

$76,339

Median Household Income

4.59%

Poverty Rate

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)