Hamlin township is located in Brown County, Kansas. Hamlin township has a 2026 population of 289. Hamlin township is currently declining at a rate of -1.03% annually and its population has decreased by -6.17% since the most recent census, which recorded a population of 308 in 2020.
The median age in Hamlin township is 57.8 years: 57.7 years for males, and 58.5 years for females. For every 100 females there are 110.8 males.
Data after 2023 is projected based on recent change
Overall: 57.8 years
Female: 58.5 years
Male: 57.7 years
There are 140 adults, (35 of whom are seniors) in Hamlin township.
Female: 74 (47.4%)
Male: 82 (52.6%)
The racial composition of Hamlin township includes 82.05% White, 7.69% Native American, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 128 | 82.05% |
| Two or more races | 16 | 10.26% |
| Native American | 12 | 7.69% |