Fairfield is a city located in Wayne County, Illinois. Fairfield has a 2026 population of 4,741. It is also the county seat of Wayne County. Fairfield is currently declining at a rate of -0.5% annually and its population has decreased by -2.99% since the most recent census, which recorded a population of 4,887 in 2020.
The median household income in Fairfield is $41,989 with a poverty rate of 17.7%. The median age in Fairfield is 46.4 years: 42.4 years for males, and 51.9 years for females. For every 100 females there are 106.2 males.
Data after 2023 is projected based on recent change
Overall: 46.4 years
Female: 51.9 years
Male: 42.4 years
There are 3,853 adults, (1,156 of whom are seniors) in Fairfield.
Female: 2,212 (48.5%)
Male: 2,349 (51.5%)
The racial composition of Fairfield includes 93.53% White, and smaller percentages for Two or more races, other race, Asian, Black or African American, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 4,266 | 93.53% |
| Two or more races | 112 | 2.46% |
| Other race | 52 | 1.14% |
| Asian | 47 | 1.03% |
| Black or African American | 42 | 0.92% |
| Native American | 42 | 0.92% |
Fairfield 's average per capita income is $39,955. Household income levels show a median of $41,989. The poverty rate stands at 17.7%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $85,713 | - |
| Families | $74,583 | $105,436 |
| Households | $41,989 | $70,974 |
| Non Families | $25,137 | $30,546 |
Average Income
Median Household Income
Poverty Rate