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 9,511. It is also the county seat of Jefferson County. Fairfield is currently growing at a rate of 1.03% annually and its population has increased by 0.65% since the most recent census, which recorded a population of 9,450 in 2020.

9.5K
Total Population
1,438
Density (mi²)
97 1.03%
Growth

Nearby Cities

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)