| Business | Phone |
| Crest Branch Library 105 Juanita Ln, El Cajon 92021 | (619) 442-7083 |
| East County Branch Law Library 250 E Main St, El Cajon 92020 | (619) 441-4451 |
| El Cajon Library 201 E Douglas Ave, El Cajon 92020 | (619) 588-3718 |
| San Diego County Law Library 250 E Main St, El Cajon 92020 | (619) 441-4444 |
| Rancho San Diego Library 1555 Via Rancho San Diego, El Cajon 92019 | (619) 660-5370 |
| East County Mobile Library El Cajon 92019 | (619) 660-6329 |
| Fletcher Hills Branch Library 576 Garfield Ave, El Cajon 92020 | (619) 466-1132 |