| Business | Phone |
| Meter Shop 335 W Rialto Ave, Rialto 92376 | (909) 820-2608 |
| Maintenance Center 246 S Willow Ave, Rialto 92376 | (909) 820-2602 |
| Rialto Building Div 150 S Palm Ave, Rialto 92376 | (909) 820-2505 |
| Rialto City Adm 150 S Palm Ave, Rialto 92376 | (909) 820-2689 |
| Rialto City Business Licenses 150 S Palm Ave, Rialto 92376 | (909) 820-2517 |
| Rialto City Engineering 150 S Palm Ave, Rialto 92376 | (909) 820-2530 |
| Rialto City Information 150 S Palm Ave, Rialto 92376 | (909) 820-2500 |
| Rialto Code Enforcement 246 S Willow Ave, Rialto 92376 | (909) 820-2636 |
| Rialto Community Players 150 E San Bernardino Ave, Rialto 92376 | (909) 873-8514 |
| Rialto Development Svc 150 S Palm Ave, Rialto 92376 | (909) 820-2535 |
| Rialto Dog Licenses 150 S Palm Ave, Rialto 92376 | (909) 421-7223 |
| Rialto Human Resources 290 W Rialto Ave, Rialto 92376 | (909) 820-2540 |
| Rialto Krto-Channel 3 150 S Palm Ave, Rialto 92376 | (909) 421-7235 |
| Rialto Sports Center 1243 S Riverside Ave, Rialto 92376 | (909) 820-2624 |
| Rialto Street Maintenance 150 S Palm Ave, Rialto 92376 | (909) 820-2602 |