Frederick

County:: Brown County
County Seat:: No
Area (mi²):: 1.354
State:: South Dakota

Frederick is a town located in Brown County, South Dakota. Frederick has a 2025 population of 201. Frederick is currently declining at a rate of -0.99% annually and its population has decreased by -5.63% since the most recent census, which recorded a population of 213 in 2020.

The average household income in Frederick is $73,145 with a poverty rate of 12.92%.The median age in Frederick is 52.1 years: 50.6 years for males, and 52.9 years for females.

Demographics

The racial composition of Frederick includes 96.07% White, and smaller percentages for Asian, Two or more races and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	171	96.07%
Asian	5	2.81%
Two or more races	2	1.12%

Frederick Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Frederick's average per capita income is $42,500. Household income levels show a median of $81,071. The poverty rate stands at 12.92%.

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	$92,500	-
Families	$91,750	$81,311
Households	$81,071	$73,145
Non Families	$48,750	$53,424

$42,500

Average Income

$81,071

Median Household Income

12.92%

Poverty Rate