Willow Lake is a city located in Clark County, South Dakota. Willow Lake has a 2026 population of 269. Willow Lake is currently growing at a rate of 0.37% annually and its population has increased by 1.13% since the most recent census, which recorded a population of 266 in 2020.
The median household income in Willow Lake is $72,875 with a poverty rate of 1.15%. The median age in Willow Lake is 17.5 years: 14.7 years for males, and 29.3 years for females. For every 100 females there are 154.7 males.
Data after 2023 is projected based on recent change
Overall: 17.5 years
Female: 29.3 years
Male: 14.7 years
There are 212 adults, (38 of whom are seniors) in Willow Lake.
Female: 170 (39.3%)
Male: 263 (60.7%)
The racial composition of Willow Lake includes 94.69% White, 3.7% Black or African American, and smaller percentages for Two or more races and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 410 | 94.69% |
| Black or African American | 16 | 3.7% |
| Two or more races | 7 | 1.62% |
Willow Lake 's average per capita income is $44,063. Household income levels show a median of $72,875. The poverty rate stands at 1.15%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $92,750 | - |
| Families | $88,125 | $83,880 |
| Households | $72,875 | $74,255 |
| Non Families | $52,500 | $47,053 |
Average Income
Median Household Income
Poverty Rate