The San Bernardino County map shows the location, boundaries, cities, highways, rivers, airports, and major geographic features of California’s largest county by area. It highlights important places including San Bernardino, Barstow, Victorville, Apple Valley, Hesperia, Needles, and Twentynine Palms. The map also identifies Interstate 15, U.S. highways, state roads, county boundaries, rivers, lakes, parks, and airports. Neighboring areas such as Los Angeles, Riverside, Kern, Inyo, and Nevada are shown for geographic reference. This detailed map is useful for students, travelers, researchers, businesses, and anyone studying transportation routes, communities, geography, and surrounding desert landscapes clearly across Southern California and beyond region.
| Fact | Details |
|---|---|
| Official Name | San Bernardino County |
| State | California |
| Country | United States |
| Founded | April 26, 1853 |
| Incorporated | Not applicable — county government |
| Population | 2,224,091 (2025 estimate) |
| County | San Bernardino |
| Area | 20,068.01 sq mi (52,175 km²) |
| Time Zone | Pacific Time Zone (PT) |
| ZIP Codes | Approximately 91701–92397, 92401–92427, and other county ZIP codes |
| Area Code | 909, 760, 442, 951 |
| Known For | Mojave Desert, mountains, logistics, Route 66, and extensive national parks |
| Major Airport | Ontario International Airport (ONT); San Bernardino International Airport (SBD) |
| Climate | Mediterranean in western valleys; desert in eastern and northern areas; alpine conditions in the mountains |
| Nickname | The Inland Empire / California’s largest county by area |
| Major Highways | I-10, I-15, I-40, I-210, I-215, US 60, US 66, CA-18, CA-62, CA-58 |
| Nearby Border | Nevada and Arizona; also borders several California counties |
| Major Attractions | Joshua Tree National Park, Mojave National Preserve, Big Bear Lake, San Bernardino Mountains, Route 66, and Kelso Dunes |