Costa Mesa Flag

Costa Mesa

County:
Orange County
County Seat:
No
Area (mi²):
15.806
State:
California

Costa Mesa is a city located in Orange County, California. Costa Mesa has a 2026 population of 109,131. Costa Mesa is currently declining at a rate of -0.16% annually and its population has decreased by -2.61% since the most recent census, which recorded a population of 112,050 in 2020.

109.1K
Total Population
6,904
Density (mi²)
-171 -0.16%
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)