Fairfield is a city located in California. With a 2020 population of 118,043, it is the 55th largest city in California and the 248th largest city in the United States. Fairfield is currently growing at a rate of 0.39% annually and its population has increased by 12.08% since the most recent census, which recorded a population of 105,321 in 2010. Fairfield reached it's highest population of 118,043 in 2021. Spanning over 41 miles, Fairfield has a population density of 2,866 people per square mile.
The average household income in Fairfield is $106,406 with a poverty rate of 8.62%. The median rental costs in recent years comes to $1,615 per month, and the median house value is $409,000. The median age in Fairfield is 34.8 years, 33.7 years for males, and 36 years for females. For every 100 females there are 96.8 males.