Frankfort Flag

Frankfort

County:
Spink County
County Seat:
No
Area (mi²):
0.788
State:
South Dakota

Frankfort is a city located in Spink County, South Dakota. Frankfort has a 2026 population of 128. Frankfort is currently declining at a rate of -0.78% annually and its population has decreased by -5.88% since the most recent census, which recorded a population of 136 in 2020.

The median household income in Frankfort is $68,750 with a poverty rate of 6.25%. The median age in Frankfort is 54.5 years: 58.2 years for males, and 50.3 years for females. For every 100 females there are 141.5 males.

128
Total Population
163
Density (mi²)
-1 -0.78%
Growth

Frankfort Population

Frankfort Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026128-1-0.78%
2025129-2-1.53%
2024131-1-0.76%
2023132-1-0.75%
2022133-1-0.75%
2021134-2-1.47%
202013600%
2019151-2-1.31%
2018153-2-1.29%
201715521.31%
2016153-2-1.29%
2015155-2-1.27%
201415710.64%
2013156-1-0.64%
201215731.95%
201115453.36%
201014900%

Median Age

Overall: 54.5 years
Female: 50.3 years
Male: 58.2 years

Frankfort Adults

There are 106 adults, (45 of whom are seniors) in Frankfort.

Sex Ratio

Female: 53 (41.4%)
Male: 75 (58.6%)

Demographics

The racial composition of Frankfort includes 99.22% White, and smaller percentages for other race and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White12799.22%
Other race10.78%
Race
Population ↓
Percentage (of total)
White10.78%
Other race10.78%
Race
Population ↓
Percentage (of total)
White12698.44%

Frankfort Marital Status

Economics and Income Statistics

Frankfort 's average per capita income is $50,375. Household income levels show a median of $68,750. The poverty rate stands at 6.25%.

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
Families$91,250$80,394
Married Families$89,375-
Households$68,750$75,049
Non Families$61,563$68,126

$50,375

Average Income

$68,750

Median Household Income

6.25%

Poverty Rate

Nearby Cities

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)