Plain Center township is located in Charles Mix County, South Dakota. Plain Center township has a 2026 population of 127. Plain Center township is currently growing at a rate of 2.42% annually and its population has increased by 7.63% since the most recent census, which recorded a population of 118 in 2020.
The median household income in Plain Center township is $73,214 with a poverty rate of 6.96%. The median age in Plain Center township is 30.8 years: 31.8 years for males, and 30.2 years for females. For every 100 females there are 88.1 males.
Data after 2023 is projected based on recent change
Overall: 30.8 years
Female: 30.2 years
Male: 31.8 years
There are 116 adults, (7 of whom are seniors) in Plain Center township.
Female: 84 (53.2%)
Male: 74 (46.8%)
The racial composition of Plain Center township includes 89.87% White, 6.33% Native American, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 142 | 89.87% |
| Native American | 10 | 6.33% |
| Two or more races | 6 | 3.8% |
Plain Center township 's average per capita income is $58,438. Household income levels show a median of $73,214. The poverty rate stands at 6.96%.
| Name | Median ↓ | Mean |
|---|---|---|
| Households | $73,214 | $99,232 |
| Non Families | $72,679 | $50,967 |
| Families | - | $124,197 |
| Married Families | - | - |
Average Income
Median Household Income
Poverty Rate