Costa Mesa is a city located in California. With a 2020 population of 112,405, it is the 59th largest city in California and the 268th largest city in the United States. Costa Mesa is currently declining at a rate of -0.27% annually but its population has increased by 2.22% since the most recent census, which recorded a population of 109,960 in 2010. Costa Mesa reached it's highest population of 113,665 in 2017. Spanning over 16 miles, Costa Mesa has a population density of 7,116 people per square mile.
The average household income in Costa Mesa is $109,313 with a poverty rate of 11.85%. The median rental costs in recent years comes to $1,857 per month, and the median house value is $749,400. The median age in Costa Mesa is 35.2 years, 34.9 years for males, and 35.6 years for females. For every 100 females there are 101.3 males.