Monument township is located in Logan County, Kansas. Monument township has a 2026 population of 112. Monument township is currently declining at a rate of -0.88% annually and its population has decreased by -3.45% since the most recent census, which recorded a population of 116 in 2020.
The median age in Monument township is 33.2 years: 33.1 years for males, and 46.5 years for females. For every 100 females there are 115.6 males.
Data after 2023 is projected based on recent change
Overall: 33.2 years
Female: 46.5 years
Male: 33.1 years
There are 110 adults, (44 of whom are seniors) in Monument township.
Female: 64 (46.4%)
Male: 74 (53.6%)
The racial composition of Monument township includes 94.93% White, 5.07% Asian, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 131 | 94.93% |
| Asian | 7 | 5.07% |