| Department | Phone Number |
| Ambulance/Emergency Medical Service | 911 |
| Fire Service Emergency - Report A Fire | 911 |
| Police - Emergency | 911 |
| Administrative/General Info | 404-294-2605 |
| After Hours | 404-294-2523 |
| Alcohol License | 404-371-2462 |
| Animal Services-After Hours | 404-294-2519 |
| Animal Services-Stray Animals | 404-294-2996 |
| Atlanta Legal Aid (DeKalb) | 404-377-0701 |
| Automated Assistance | 404-371-3272 |
| Bidding Purchase | 404-371-2707 |
| Birth Certificate (Vital Records) | 404-294-3783 |
| Board of Education-DeKalb | 678-676-1200 |
| Board of Health-DeKalb | 404-294-3700 |
| Business License | 404-371-2462 |
| Center Precinct | 404-294-2580 |
| Chamber of Commerce-DeKalb | 404-378-8000 |
| Citizen's Drainage Program | 404-297-3840 |
| Code Enforcement | 770-724-7940 |
| Conventions & Visitors Bureau | 770-492-5000 |
| Courthouse | 404-371-2391 |
| Criminal Investigations | 404-294-2550 |
| Deaf Teletype | 404-294-2677 |
| DeKalb Community Relations (Police) | 404-286-7955 |
| DeKalb County Fire Resuce Adminstration | 678-406-7750 |
| DeKalb Housing Authority | 404-270-2500 |
| DeKalb Medical Center | 404-501-1000 |
| DeKalb Medical Center - Hillandale | 404-501-8000 |
| DeKalb Rape Crisis Center | 404-377-1428 |
| District Attorney-DeKalb | 404-371-2561 |
| Drainage Problems | 404-297-3840 |
| Driver's License (State) | 678-413-8400 |
| Drug Hotline | 770-322-2540 |
| East Precinct | 770-482-0300 |
| Economic Development | 404-687-2730 |
| Elections | 404-298-4020 |
| Emergency | 770-270-6243 |
| Family & Children Service (DFACS) | 404-370-5000 |
| Fleet Maintenance | 404-244-4201 |
| Gov. Off. Of Consumer Affairs | 404-656-3790 |
| Homeland Security/Gangs | 770-216-4926 |
| Housing Authority | 404-270-2574 |
| Human & Community Affairs | 770-322-2950 |
| Human Resources | 404-371-2332 |
| Information-General | 404-371-2000 |
| Jail Info Line | 404-298-8195 |
| Jury Management | 404-371-2022 |
| Juvenile Detention | 404-244-2183 |
| Keep DeKalb Beautiful | 404-371-2654 |
| Law Department | 404-371-3011 |
| Marriage License | 404-371-2262 |
| MARTA-Complaint Line | 404-848-4800 |
| Mental Health Emergencies | 404-892-4646 |
| Mobile Crisis Unit | 404-294-0499 |
| Motor Vehicle (TAGS) | 404-298-4000 |
| Neighborhood Watch | 404-286-7955 |
| Pistol License | 404-371-2262 |
| Planning & Development | 404-371-2155 |
| Police - General Information | 404-294-2000 |
| Pot Holes-DeKalb | 404-297-3840 |
| Probation | 404-371-2822 |
| Property Tax | 404-298-4000 |
| Public Defender | 404-371-2222 |
| Recorder's Court | 404-508-0368 |
| Records (Police Information) | 404-294-2512 |
| Recreation, Parks | 404-371-2631 |
| Roads & Drainage | 404-297-3840 |
| Sanitation | 404-294-2900 |
| Section 8 | 404-270-2600 |
| Sheriff's Department | 404-298-8000 |
| Sight Obstructions (Roads) | 404-294-2041 |
| South Precinct | 404-286-7911 |
| Speed Humps | 770-492-5200 |
| Stormwater Management | 404-297-2570 |
| Street Lights | 770-492-5200 |
| Tactical Ops (Radar) | 404-294-2278 |
| Tax Assessor's Office | 404-371-0841 |
| Tax Commissioner | 404-298-4000 |
| Traffic Signal Malfunction | 404-297-3929 |
| Trees Down | 404-297-3840 |
| Voter Registration | 404-298-4020 |
| Water-Billing | 404-378-4475 |
| Women's Resource Center | 404-688-9436 |
| Zoning | 404-371-4915 |