Maine township is located in Grundy County, Illinois. Maine township has a 2026 population of 315. Maine township is currently declining at a rate of 0% annually and its population has increased by 1.61% since the most recent census, which recorded a population of 310 in 2020.
The median age in Maine township is 60.9 years: 60.6 years for males, and 68.3 years for females. For every 100 females there are 148.1 males.
Data after 2023 is projected based on recent change
Overall: 60.9 years
Female: 68.3 years
Male: 60.6 years
There are 196 adults, (94 of whom are seniors) in Maine township.
Female: 81 (40.3%)
Male: 120 (59.7%)
The racial composition of Maine township includes 95.52% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 192 | 95.52% |
| Two or more races | 9 | 4.48% |