Westerville is a city located in Ohio. With a 2020 population of 41,687, it is the 28th largest city in Ohio and the 937th largest city in the United States. Westerville is currently growing at a rate of 1.58% annually and its population has increased by 15.41% since the most recent census, which recorded a population of 36,120 in 2010. Spanning over 13 miles, Westerville has a population density of 3,308 people per square mile.
The average household income in Westerville is $103,819 with a poverty rate of 7.44%. The median rental costs in recent years comes to $1,052 per month, and the median house value is $226,700. The median age in Westerville is 42.3 years, 39.1 years for males, and 45 years for females. For every 100 females there are 92.8 males.