Timber Lake

County:: Dewey County
County Seat:: No
Area (mi²):: 0.611
State:: South Dakota

Timber Lake is a city located in Dewey County, South Dakota. Timber Lake has a 2025 population of 518. Timber Lake is currently growing at a rate of 0.19% annually and its population has increased by 1.17% since the most recent census, which recorded a population of 512 in 2020.

The average household income in Timber Lake is $70,358 with a poverty rate of 18.06%. The median age in Timber Lake is 27.4 years: 25 years for males, and 30.4 years for females.

Demographics

The racial composition of Timber Lake includes 46.53% White, 45.64% Native American, and smaller percentages for Black or African American, Asian, other race, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Native American

Two or more races

Black or African American

Asian

Other race

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	315	46.53%
Native American	309	45.64%
Two or more races	42	6.2%
Black or African American	6	0.89%
Asian	3	0.44%
Other race	2	0.3%
Native Hawaiian or Pacific Islander	0	0%

Timber Lake Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Timber Lake's average per capita income is $39,063. Household income levels show a median of $58,000. The poverty rate stands at 18.06%.

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
Married Families	$112,917	-
Families	$62,857	$83,867
Households	$58,000	$70,358
Non Families	$33,750	$39,378

$39,063

Average Income

$58,000

Median Household Income

18.06%

Poverty Rate