| Department | Total Employees |
|---|---|
| Police Department | 13,572 |
| Fire Department | 4,798 |
| Streets and Sanitation | 2,095 |
| Water Management office | 1,808 |
| Aviation Department | 1,258 |
| Transportation Department | 1,202 |
| OEMC office | 1,184 |
| Public Library | 971 |
| General Services office | 929 |
| Family & Support office | 720 |
| Health Department | 570 |
| Finance Department | 535 |
| Law office | 455 |
| City Council's office | 395 |
| Buildings' Department | 261 |
| Community Development office | 218 |
| Business Affairs office | 180 |
| Board of Election office | 116 |
| City Clerk's office | 103 |
| Department of Innovation & Technology | 97 |
| Mayor's office | 97 |
| Independent Police Review Authority | 88 |
| Cultural Affairs office | 78 |
| Procurement office | 77 |
| Animal Control | 68 |
| Human Resources' office | 66 |
| Inspector General's office | 52 |
| Budget & Management Department | 44 |
| AdmHearing office | 40 |
| Disabilities office | 29 |
| Treasurer's office | 24 |
| Human Relations' Department | 18 |
| Board of Ethics | 9 |
| Police Board | 2 |
| License Application office | 1 |