Montclair Flag

Montclair

County Seat:
No
Area (mi²):
5.531
State:
California

Montclair is a city located in San Bernardino County, California. Montclair has a 2026 population of 37,650. Montclair is currently growing at a rate of 0.01% annually but its population has decreased by -0.78% since the most recent census, which recorded a population of 37,946 in 2020.

37.6K
Total Population
6,807
Density (mi²)
4 0.01%
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)