| 911 Emergency | | 911 |
| Airport | | 928-764-3330 |
| Animal Control | | 928-855-7479 |
| Cablevision | | 866-674-1800 |
| Chamber of Commerce | | 928-855-4115 |
| Citizens Communications | | 800-921-8101 |
| Citizens Utilities Electric | | 928-855-2138 |
| Citizens Utilities Gas Co. | | 928-453-0595 |
| County Assessor's Office | | 928-453-0702 |
| Creative Cultural Center | | 928-680-0221 |
| Fire Dept. | | 928-855-1141 |
| Havasu Regional Hospital | | 928-855-8185 |
| Lake Havasu City | | 928-855-2116 |
| Lake Havasu City Transit Service | | 928-453-7600 or 5479 |
| Lake Havasu Community Development | | 928-453-4148 |
| Library | | 928-453-0718 |
| Mohave Community College | | 928-855-7812 |
| Motor Vehicle Dept. | | 928-855-4355 |
| Parks and Recreation Dept. | | 928-453-8686 |
| Police | | 928-855-1171 |
| Post Office | | 928-855-2361 |
| Public Works Dept. | | 928-453-6660 |
| School District Office, grades K | 12 | | 928-855-7861 |
| State Parks Office | | 928-855-7851 |
| Tourism Bureau | | 928-453-3444 |
| Water and Trash Service | | 928-855-4146 |
