Fairfield is located in Jefferson County, Iowa. Fairfield has a 2025 population of 655 . It is also the county seat of Jefferson County . Fairfield is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.
The average household income in Fairfield is $55,940 with a poverty rate of 24.73%. The median age in Fairfield is 52.1 years: 54.3 years for males, and 48.8 years for females. For every 100 females there are 97.9 males.
Data after 2023 is projected based on recent change
The racial composition of Fairfield includes 93.28% White, and smaller percentages for Asian and multiracial populations.
White (93.28%)
Two or more races (6.26%)
Asian (0.46%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 611 | 93.28% |
| Two or more races | 41 | 6.26% |
| Asian | 3 | 0.46% |
Married
Widowed
Divorced
Separated
Never Married
Fairfield's average per capita income is $30,526. Household income levels show a median of $40,089. The poverty rate stands at 24.73%.
Name | Median | Mean |
|---|---|---|
| Married Families | $62,679 | - |
| Families | $52,500 | $61,533 |
| Households | $40,089 | $55,940 |
| Non Families | $23,688 | $43,773 |
Average Income
Median Household Income
Poverty Rate