Plainfield township Flag

Plainfield township

County:
Brule County
County Seat:
No
Area (mi²):
35.472
State:
South Dakota

Plainfield township is located in Brule County, South Dakota. Plainfield township has a 2026 population of 30. Plainfield township is currently declining at a rate of -3.23% annually and its population has decreased by -9.09% since the most recent census, which recorded a population of 33 in 2020.

30
Total Population
0.85
Density (mi²)
-1 -3.23%
Growth

Plainfield township Population

Plainfield township Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202630-1-3.23%
202531-1-3.13%
202432-1-3.03%
20233300%
20223300%
20213300%
20203300%
20193900%
201839-1-2.5%
20174012.56%
20163912.63%
201538-1-2.56%
20143912.63%
20133800%
20123800%
201138411.76%
20103800%

Median Age

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

Plainfield township Adults

There are 4 adults, (0 of whom are seniors) in Plainfield township.

Sex Ratio

Female: 2 (50%)
Male: 2 (50%)

Demographics

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

Population by Race

Race
Population ↓
Percentage (of total)
White4100%
Race
Population ↓
Percentage (of total)
White4100%

Plainfield township 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)