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San Bernardino County, California
San Bernardino County is the largest county by area in the United States, running from the Inland Empire's warehouse belt across the San Bernardino Mountains and Mojave Desert to the Nevada and Arizona lines. Logistics is the defining industry — Ontario's airport and the I-10 and I-15 corridors — with warehouse-siting moratoria, desert renewable-energy planning, and mountain fire-hazard zoning the live regulatory fights.
Open the live San Bernardino County map →
San Bernardino County at a glance
- 2,214,000Population (2024)
- San BernardinoCounty seat
- 20,068 sq miLand area
- 110 / sq miDensity
- $82,000Median household income
- $475,000Median home value
What the live San Bernardino County map shows
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- City Boundaries: 24
- School Boundaries: 36
- Congressional Districts: 6
- Soils: 832
- State House Districts: 10
- State Senate Districts: 8
- Voter Precincts: 2,872
- Wetlands: 5
- Development News: 1
Cities and towns in San Bernardino County
Adelanto, Apple Valley, Barstow, Big Bear Lake, Chino, Chino Hills, Colton, Fontana, Grand Terrace, Hesperia, Highland, Loma Linda, Montclair, Needles, Ontario, Rancho Cucamonga, Redlands, Rialto, San Bernardino, Twentynine Palms, Upland, Victorville, Yucaipa, Yucca Valley.
Neighboring counties
- Riverside County, CA · map
- Orange County, CA · map
- La Paz County, AZ · map
- Los Angeles County, CA · map
- Mohave County, AZ · map
- Inyo County, CA · map
- Kern County, CA · map