
Vermilion
- County:
- Erie County
- County Seat:
- No
- Area (mi²):
- 10.602
- State:
- Ohio
Vermilion is a city located in Erie County, Ohio. Vermilion has a 2025 population of 10,740. Vermilion is currently growing at a rate of 0.17% annually and its population has increased by 0.85% since the most recent census, which recorded a population of 10,650 in 2020.
The average household income in Vermilion is $106,927 with a poverty rate of 5.42%. The median age in Vermilion is 49.8 years: 45.6 years for males, and 51.8 years for females.