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Where am ILOCATED

Riverside-San Bernardino-Ontario, CA Metro Area

The Riverside-San Bernardino-Ontario, CA metro area is made up of 2 counties in California: Riverside and San Bernardino. About 4,769,007 people lived there on July 1, 2025 (Census estimate), 3.6% more than in April 2020.

Riverside County, centralSan Bernardino County, centralRiversideSan BernardinoOntario
2 counties in California
Population, July 2025
4,769,007 3.6% more than in April 2020
Type
Metropolitan statistical area
Counties
2, both central
Land area
27,277 sq mi (70,648 km²)
Time zone
Pacific TimeUTC-08:00 in January; UTC-07:00 in July
State
California
Combined statistical area
Los Angeles-Long Beach, CA
CBSA code
40140
Open this area in the metro area finder

Counties in the Riverside-San Bernardino-Ontario, CA metro area, largest first

CountyRolePopulation, July 2025Share of the area
Riverside CountyCentral2,544,91653.4%
San Bernardino CountyCentral2,224,09146.6%

A central county holds the area’s core, an urban area of at least 50,000 people. This area has no outlying counties: no neighboring county sends enough commuters to join it. A county belongs to one metro or micro area at most, and it counts whole, countryside included.

Principal cities, largest first

  1. Riverside319,069 people
  2. San Bernardino222,724 people
  3. Ontario180,547 people
  4. Corona159,670 people
  5. Temecula111,167 people
  6. Chino92,652 people
  7. Redlands73,375 people
  8. Palm Desert51,990 people

OMB names the area after its largest principal cities. A principal city is the area’s largest city, plus any other city that is very large or a big job center, and smaller ones with at least as many jobs as working residents (2020 Census and commuting figures). People counts are American Community Survey 2020–2024 5-year estimates.

Part of the Los Angeles-Long Beach, CA combined statistical area

OMB joins neighboring metro and micro areas into a combined statistical area when enough people commute between them. The other 2 areas in this one, largest first:

  1. Los Angeles-Long Beach-Anaheim, CA Metro Area12,844,441 people
  2. Oxnard-Thousand Oaks-Ventura, CA Metro Area830,851 people

Bordering metro and micro areas, nearest first

Areas with a county on this area’s edge. Distances are straight lines between the areas’ largest cities.

  1. Los Angeles-Long Beach-Anaheim, CA Metro Area59 mi west
  2. San Diego-Chula Vista-Carlsbad, CA Metro Area78 mi south
  3. El Centro, CA Metro Area132 mi southeast
  4. Bakersfield-Delano, CA Metro Area135 mi northwest
  5. Lake Havasu City-Kingman, AZ Metro Area180 mi east
  6. Las Vegas-Henderson-North Las Vegas, NV Metro Area199 mi northeast
  7. Bishop, CA Micro Area243 mi north

Before using this answer on a form

A metro or micro area is a statistical area that OMB draws for federal statistics. It is not a city, a local government or a mailing address, and it is not a measure of urban and rural: whole counties count, rural parts included. Programs that use metro areas, such as housing income limits or wage rates, can use their own version of these lists; check the program’s own list for an address.

Find the metro area where you are now, find your county, or see every metro and micro area by population.

See this area on Census.gov ↗