Oak Valley township is located in Elk County, Kansas. Oak Valley township has a 2026 population of 84. Oak Valley township is currently declining at a rate of -1.18% annually and its population has decreased by -1.18% since the most recent census, which recorded a population of 85 in 2020.
The median age in Oak Valley township is 54 years: 53.3 years for males, and 54.5 years for females. For every 100 females there are 103.6 males.
Data after 2023 is projected based on recent change
The racial composition of Oak Valley township includes 78.57% White, and smaller percentages for and multiracial populations.
White (78.57%)
Two or more races (21.43%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 88 | 78.57% |
| Two or more races | 24 | 21.43% |
Married
Widowed
Divorced
Separated
Never Married