Ottawa township is located in Franklin County, Kansas. Ottawa township has a 2026 population of 42. Ottawa township is currently growing at a rate of 5% annually and its population has increased by 16.67% since the most recent census, which recorded a population of 36 in 2020.
The median age in Ottawa township is 44.8 years: 53.3 years for males, and 44.1 years for females. For every 100 females there are 135.3 males.
Data after 2023 is projected based on recent change
Overall: 44.8 years
Female: 44.1 years
Male: 53.3 years
There are 26 adults, (6 of whom are seniors) in Ottawa township.
Female: 17 (42.5%)
Male: 23 (57.5%)
The racial composition of Ottawa township includes 100% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 40 | 100% |