Fairfield is a city located in Butler County, Ohio. Fairfield has a 2026 population of 45,185. Fairfield is currently growing at a rate of 0.1% annually and its population has increased by 0.61% since the most recent census, which recorded a population of 44,912 in 2020.
The median household income in Fairfield is $77,937 with a poverty rate of 8.43%. The median age in Fairfield is 38.1 years: 36.6 years for males, and 40.2 years for females. For every 100 females there are 98.3 males.
Data after 2023 is projected based on recent change
Overall: 38.1 years
Female: 40.2 years
Male: 36.6 years
There are 35,407 adults, (7,886 of whom are seniors) in Fairfield.
Female: 22,607 (50.4%)
Male: 22,221 (49.6%)
The racial composition of Fairfield includes 61.08% White, 14.88% Black or African American, 7.36% Asian, 5.94% other race, and smaller percentages for Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 27,383 | 61.08% |
| Black or African American | 6,671 | 14.88% |
| Two or more races | 4,665 | 10.41% |
| Asian | 3,301 | 7.36% |
| Other race | 2,661 | 5.94% |
| Native American | 147 | 0.33% |
Fairfield 's average per capita income is $50,597. Household income levels show a median of $77,937. The poverty rate stands at 8.43%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $114,545 | - |
| Families | $97,704 | $116,437 |
| Households | $77,937 | $97,330 |
| Non Families | $46,787 | $61,753 |
Average Income
Median Household Income
Poverty Rate