Adjacent Counties
- Los Angeles County, California—north, west
- San Bernardino County, California—northeast
- Riverside County, California—east
- San Diego County, California—southeast
| Los Angeles County | San Bernardino County | |||
| Los Angeles County | Riverside County | |||
| Orange County, California | ||||
| Pacific Ocean | San Diego County |
Read more about this topic: Orange County, California, Geography