Westerville is a city located in Delaware County, Ohio. Westerville has a 2026 population of 38,298. Westerville is currently declining at a rate of -0.41% annually and its population has decreased by -2.4% since the most recent census, which recorded a population of 39,240 in 2020.
The median household income in Westerville is $109,404 with a poverty rate of 5.57%. The median age in Westerville is 40.7 years: 39 years for males, and 42.6 years for females. For every 100 females there are 89.7 males.
Data after 2023 is projected based on recent change
Overall: 40.7 years
Female: 42.6 years
Male: 39 years
There are 29,909 adults, (8,306 of whom are seniors) in Westerville.
Female: 20,373 (52.7%)
Male: 18,272 (47.3%)
The racial composition of Westerville includes 81% White, 8.73% Black or African American, and smaller percentages for Asian, other race, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 31,304 | 81% |
| Black or African American | 3,375 | 8.73% |
| Two or more races | 2,392 | 6.19% |
| Asian | 1,075 | 2.78% |
| Other race | 464 | 1.2% |
| Native American | 35 | 0.09% |
Westerville 's average per capita income is $73,592. Household income levels show a median of $109,404. The poverty rate stands at 5.57%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $153,758 | - |
| Families | $138,678 | $156,955 |
| Households | $109,404 | $131,351 |
| Non Families | $59,308 | $70,605 |
Average Income
Median Household Income
Poverty Rate