Gann Valley Flag

Gann Valley

County:
Buffalo County
County Seat:
Yes
Area (mi²):
0.079
State:
South Dakota

Gann Valley is a CDP located in Buffalo County, South Dakota. Gann Valley has a 2026 population of 6. It is also the county seat of Buffalo County. Gann Valley is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.

6
Total Population
76
Density (mi²)

Gann Valley Population

Gann Valley Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026600%
20256120%

Median Age

Overall: 0 years
Female: 0 years
Male: 0 years

Gann Valley Adults

There are 6 adults, (0 of whom are seniors) in Gann Valley.

Sex Ratio

Female: 0 (0%)
Male: 6 (100%)

Demographics

The racial composition of Gann Valley includes 100% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White6100%
Race
Population ↓
Percentage (of total)
White6100%

Gann Valley Marital Status

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)