Fairfield Flag

Fairfield

County:
Solano County
County Seat:
Yes
Area (mi²):
41.586
State:
California

Fairfield is a city located in Solano County, California. Fairfield has a 2025 population of 121,391. It is also the county seat of Solano CountyFairfield is currently growing at a rate of 0.26% annually and its population has increased by 1.3% since the most recent census, which recorded a population of 119,833 in 2020.

The average household income in Fairfield is $127,639 with a poverty rate of 10.47%.The median age in Fairfield is 36.8 years: 36.1 years for males, and 37.9 years for females.

121.4K
Total Population
2,919
Density (mi²)
312 0.26%
Growth

Fairfield Population

Demographics

Economics and Income Statistics

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)