
Willoughby Hills
- County:
- Lake County
- County Seat:
- No
- Area (mi²):
- 10.761
- State:
- Ohio
Willoughby Hills is a city located in Lake County, Ohio. Willoughby Hills has a 2025 population of 9,912. Willoughby Hills is currently declining at a rate of -0.21% annually and its population has decreased by -1.04% since the most recent census, which recorded a population of 10,016 in 2020.
The average household income in Willoughby Hills is $88,854 with a poverty rate of 8.71%. The median age in Willoughby Hills is 39.3 years: 41.1 years for males, and 37.7 years for females.