| SUB REGION NAME | SUB REGIONS AND POST CODES |
|---|---|
| Alameda | Show |
| Alpine | Show |
| Amador | Show |
| Butte | Show |
| Calaveras | Show |
| Colusa | Show |
| Contra Costa | Show |
| Del Norte | Show |
| El Dorado | Show |
| Fresno | Show |
| Glenn | Show |
| Humboldt | Show |
| Imperial | Show |
| Inyo | Show |
| Kern | Show |
| Kings | Show |
| Lake | Show |
| Lassen | Show |
| Los Angeles | Show |
| Madera | Show |
| Marin | Show |
| Mariposa | Show |
| Mendocino | Show |
| Merced | Show |
| Modoc | Show |
| Mono | Show |
| Monterey | Show |
| Napa | Show |
| Nevada | Show |
| Orange | Show |
| Placer | Show |
| Plumas | Show |
| Riverside | Show |
| Sacramento | Show |
| San Benito | Show |
| San Bernardino | Show |
| San Diego | Show |
| City and County of San Francisco | Show |
| San Joaquin | Show |
| San Luis Obispo | Show |
| San Mateo | Show |
| Santa Barbara | Show |
| Santa Clara | Show |
| Santa Cruz | Show |
| Shasta | Show |
| Sierra | Show |
| Siskiyou | Show |
| Solano | Show |
| Sonoma | Show |
| Stanislaus | Show |
| Sutter | Show |
| Tehama | Show |
| Trinity | Show |
| Tulare | Show |
| Tuolumne | Show |
| Ventura | Show |
| Yolo | Show |
| Yuba | Show |
| CALIFORNIA SUB REGIONS | POST CODES (ZIP CODES) |
|---|
United States Swift Codes