PBMA's Central Region consists of the following 12 California counties:
| County |
Population |
| Fresno County |
1,003,150 |
| Inyo County |
18,804 |
| Kern County |
905,644 |
| Kings County |
151,887 |
| Madera County |
156,304 |
| Mariposa County |
17,225 |
| Merced County |
279,150 |
| Mono County |
13,291 |
| San Luis Obispo County |
282,771 |
| Stanislaus County |
550,842 |
| Tulare County |
470,999 |
| Tuolumne County |
55,243 |
|
