Grafton is located in Miner County, South Dakota. Grafton has a 2025 population of 63 . Grafton is currently declining at a rate of -3.08% annually and its population has decreased by -1.56% since the most recent census, which recorded a population of 64 in 2020.
The median household income in Grafton is $87,750 with a poverty rate of 0%. The median age in Grafton is 16.4 years: 31.1 years for males, and 13.9 years for females. For every 100 females there are 69.8 males.
Data after 2023 is projected based on recent change
The racial composition of Grafton includes 100% White, and smaller percentages for and multiracial populations.
White (100%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 90 | 100% |
Married
Widowed
Divorced
Separated
Never Married
Grafton's average per capita income is $40,500. Household income levels show a median of $87,750. The poverty rate stands at 0%.
Name | Median | Mean |
|---|---|---|
| Households | $87,750 | $113,178 |
| Families | $87,750 | $113,178 |
| Married Families | $87,750 | $113,178 |
| Non Families | - | - |
Average Income
Median Household Income
Poverty Rate