Fairfield Flag

Fairfield

County Seat:
Yes
Area (mi²):
6.614
State:
Iowa

Fairfield is a city located in Jefferson County, Iowa. Fairfield has a 2026 population of 9,181. It is also the county seat of Jefferson County. Fairfield is currently declining at a rate of -0.42% annually and its population has decreased by -2.8% since the most recent census, which recorded a population of 9,445 in 2020.

The median household income in Fairfield is $51,311 with a poverty rate of 20.73%. The median age in Fairfield is 40 years: 34.9 years for males, and 44.8 years for females. For every 100 females there are 113.0 males.

9.2K
Total Population
1,388
Density (mi²)
-39 -0.42%
Growth

Fairfield Population

Fairfield Population

Year ↓
Population
Growth
Annual Change
20269,181-39-0.42%
20259,220-69-0.74%
20249,289-29-0.31%
20239,318-57-0.61%
20229,375-146-1.53%
20219,521760.8%
20209,445220.23%
201910,3691041.01%
201810,265100.1%
201710,255570.56%
201610,198760.75%
201510,122790.79%
201410,043980.99%
20139,9452082.14%
20129,7371031.07%
20119,6341551.64%
20109,479150.16%
20009,509-259-2.65%
19909,7683403.61%
19809,4287138.18%
19708,7156618.21%
19608,05475510.34%
19507,2995267.77%
19406,7731542.33%
19306,61967111.28%
19205,94897819.68%
19104,9702815.99%
19004,6891,29838.28%
18903,3913059.88%
18803,08600%

Median Age

Overall: 40 years
Female: 44.8 years
Male: 34.9 years

Fairfield Adults

There are 8,018 adults, (2,519 of whom are seniors) in Fairfield.

Sex Ratio

Female: 4,440 (47%)
Male: 5,016 (53%)

Demographics

The racial composition of Fairfield includes 78% White, 11.65% Asian, 4.12% Black or African American, and smaller percentages for Native American, other race and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White7,37678%
Asian1,10211.65%
Two or more races3964.19%
Black or African American3904.12%
Native American1211.28%
Other race710.75%
Race
Population ↓
Percentage (of total)
White1932.04%
Native American1141.21%
Two or more races890.94%
Other race310.33%
Black or African American220.23%
Race
Population ↓
Percentage (of total)
White7,18375.96%
Asian1,10211.65%
Black or African American3683.89%
Two or more races3073.25%
Other race400.42%
Native American70.07%

Fairfield Marital Status

Economics and Income Statistics

Fairfield's average per capita income is $33,972. Household income levels show a median of $51,311. The poverty rate stands at 20.73%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Married Families$105,469-
Families$96,172$123,580
Households$51,311$81,231
Non Families$29,440$44,297

$33,972

Average Income

$51,311

Median Household Income

20.73%

Poverty Rate

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)