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 and multiracial populations.

Population by Race

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%

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