| Elmore County Courthouse | 150 South 4th East | 208- | 587-2129 | |
| Assessor | Suite 1 | Extension 507 | ||
| Auditor | Suite 3 | Extension 500 | ||
| Commissioners | Suite 3 | Extension 505 | ||
| District Court | Suite 4 | Extension 508 | ||
| Elections | Suite 3 | Extension 206 | ||
| Human Resources | Suite 3 | Extension 203 | ||
| Maintenance | Suite 3 | Extension 205 | ||
| Recorder | Suite 3 | Extension 500 | ||
| Security | Suite 5 | Extension 234 | ||
| Social Services | Suite 3 | Extension 243 | ||
| Treasurer | Suite 2 | Extension 501 | ||
| Growth and Development | 520 East 2nd South | 208- | 587-2129 | |
| Planning and Zoning | Extension 502 | |||
| Building Department | Extension 510 | |||
| Code Enforcement | Extension 283 | |||
| Juvenile Probation | 195 South 5th East | 208- | 587-2129 Extension 506 | |
| Motor Vehicles (DMV) | 430 East 2nd South | 208- | 587-2129 Extension 504 | |
| Prosecuting Attorney | 190 South 4th East | 208- | 587-2129 Extension 503 | |
| Sheriff | 2255 East 8th North | 208 | 587-3370 | |
| Sheriff Rick Layher | Extension 228 | |||
| Chief Deputy Nick Schilz | Extension 229 | |||
| Civil Department | Extension 235 | |||
| Records Department | Extension 233 | |||
| Warrants Department | Extension 231 | |||
| Dispatch | 208 | 587-2100 | ||
| Jail | 208- | 587-9103 | ||
| Detectives | 208- | 587-1888 | ||
| Drivers License | 125 South 5th East | 208- | 587-1888 Extension 124 | |
| U of I Extension Office | 535 East Jackson | 208- | 587-2129 Extension 509 | |
| Fair Office | Extension 287 | |||
| 4-H Office | Extension 251 | |||