St. Omer is a CDP located in Decatur County, Indiana. St. Omer has a 2026 population of 57. St. Omer is currently growing at a rate of 7.55% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.
Data after 2023 is projected based on recent change
Overall: 0 years
Female: 0 years
Male: 0 years
There are 19 adults, (0 of whom are seniors) in St. Omer.
Female: 9 (47.4%)
Male: 10 (52.6%)
The racial composition of St. Omer includes 100% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 19 | 100% |