Oak is located in Smith County, Kansas. Oak has a 2025 population of 247. Oak is currently growing at a rate of 0.82% annually and its population has increased by 2.49% since the most recent census, which recorded a population of 241 in 2020.
The average household income in Oak is $52,143 with a poverty rate of 5.56%.The median age in Oak is 59.8 years: 54.5 years for males, and 60.4 years for females.
Data after 2023 is projected based on recent change
The racial composition of Oak includes 94.84% White, and smaller percentages for Native American and multiracial populations.
White (94.8%)
Two or more races (4.8%)
Native American (0.4%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 239 | 94.84% |
| Two or more races | 12 | 4.76% |
| Native American | 1 | 0.4% |
Married
Widowed
Divorced
Separated
Never Married
Oak's average per capita income is $31,250. Household income levels show a median of $37,500. The poverty rate stands at 5.56%.
Name | Median | Mean |
|---|---|---|
| Married Families | $78,250 | - |
| Families | $77,222 | $68,406 |
| Households | $37,500 | $52,143 |
| Non Families | $28,523 | $34,306 |
Average Income
Median Household Income
Poverty Rate