Frederick Flag

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 2026 population of 203. Frederick is currently declining at a rate of -0.98% annually and its population has decreased by -4.25% since the most recent census, which recorded a population of 212 in 2020.

The median household income in Frederick is $76,667 with a poverty rate of 11.25%. The median age in Frederick is 52.8 years: 50.9 years for males, and 55 years for females. For every 100 females there are 105.1 males.

203
Total Population
150
Density (mi²)
-2 -0.98%
Growth

Frederick Population

Frederick Population

Year ↓
Population
Growth
Annual Change
2026203-2-0.98%
2025205-2-0.97%
202420700%
2023207-2-0.96%
2022209-2-0.95%
2021211-1-0.47%
2020212-1-0.47%
2019195-3-1.52%
2018198-3-1.49%
201720121.01%
201619900%
201519910.51%
2014198-2-1%
201320000%
201220010.5%
201119900%
201020121.01%

Median Age

Overall: 52.8 years
Female: 55 years
Male: 50.9 years

Frederick Adults

There are 139 adults, (62 of whom are seniors) in Frederick.

Sex Ratio

Female: 78 (48.7%)
Male: 82 (51.2%)

Demographics

The racial composition of Frederick includes 98.13% White, and smaller percentages for Asian, Two or more races and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White15798.13%
Asian21.25%
Two or more races10.63%
Race
Population ↓
Percentage (of total)
White15798.13%
Asian21.25%
Two or more races10.63%

Frederick Marital Status

Economics and Income Statistics

Frederick's average per capita income is $44,167. Household income levels show a median of $76,667. The poverty rate stands at 11.25%.

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$102,500-
Families$93,750$85,892
Households$76,667$76,138
Non Families$48,000$55,291

$44,167

Average Income

$76,667

Median Household Income

11.25%

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)