Mount Summit is a town located in Henry County, Indiana. Mount Summit has a 2026 population of 349. Mount Summit is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 349 in 2020.
The median age in Mount Summit is 59.9 years: 30.5 years for males, and 71.2 years for females. For every 100 females there are 44.6 males.
Data after 2023 is projected based on recent change
Overall: 59.9 years
Female: 71.2 years
Male: 30.5 years
There are 564 adults, (331 of whom are seniors) in Mount Summit.
Female: 493 (69.1%)
Male: 220 (30.9%)
The racial composition of Mount Summit includes 98.88% White, and smaller percentages for Two or more races and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 705 | 98.88% |
| Two or more races | 8 | 1.12% |