Letcher township is located in Sanborn County, South Dakota. Letcher township has a 2026 population of 122. Letcher township is currently declining at a rate of -0.81% annually but its population has increased by 0.83% since the most recent census, which recorded a population of 121 in 2020.
The median household income in Letcher township is $105,417 with a poverty rate of 0%. The median age in Letcher township is 49.9 years: 51.8 years for males, and 49.3 years for females. For every 100 females there are 78.9 males.
Data after 2023 is projected based on recent change
Overall: 49.9 years
Female: 49.3 years
Male: 51.8 years
There are 74 adults, (33 of whom are seniors) in Letcher township.
Female: 57 (55.9%)
Male: 45 (44.1%)
The racial composition of Letcher township includes 87.25% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 89 | 87.25% |
| Two or more races | 13 | 12.75% |
Letcher township 's average per capita income is $52,917. Household income levels show a median of $105,417. The poverty rate stands at 0%.
| Name | Median ↓ | Mean |
|---|---|---|
| Families | $107,083 | $134,197 |
| Married Families | $107,083 | - |
| Households | $105,417 | $119,548 |
| Non Families | - | - |
Average Income
Median Household Income
Poverty Rate