South Branch is located in Watonwan County, Minnesota. South Branch has a 2025 population of 252 . South Branch is currently declining at a rate of 0% annually and its population has decreased by -0.79% since the most recent census, which recorded a population of 254 in 2020.
The average household income in South Branch is $109,399 with a poverty rate of 3.06%. The median age in South Branch is 48.9 years: 51.6 years for males, and 46.1 years for females. For every 100 females there are 100.0 males.
Data after 2023 is projected based on recent change
The racial composition of South Branch includes 94.02% White, and smaller percentages for other race and multiracial populations.
White (94.02%)
Two or more races (4.7%)
Other race (1.28%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 220 | 94.02% |
| Two or more races | 11 | 4.7% |
| Other race | 3 | 1.28% |
Married
Widowed
Divorced
Separated
Never Married
South Branch's average per capita income is $58,804. Household income levels show a median of $87,500. The poverty rate stands at 3.06%.
Name | Median | Mean |
|---|---|---|
| Families | $90,179 | $109,782 |
| Households | $87,500 | $109,399 |
| Non Families | $83,750 | $85,360 |
| Married Families | $79,837 | - |
Average Income
Median Household Income
Poverty Rate