Sussex County
| 911 Addresses | (302) 855-1176 |
| Building Code | (302) 855-7860 |
| Building Permits | (302) 855-7720 |
| Code Enforcement | (302) 855-7819 |
| County Council | (302) 855-7743 |
| Deeds | (302) 855-7785 |
| Marriage Licenses | (302) 853-1717 |
| Sewer Billing | (302) 855-7871 |
| Sewer General Questions | (302) 855-7718 |
| Sewer & Water 24-Hour Emergency Contact | (302) 855-7379 |
| Sheriff Sales/Foreclosures | (302) 855-7830 |
| Taxes/Treasury | (302) 855-7760 |
| Wills | (302) 855-7875 |
| Zoning Issues | (302) 855-7878 |
State of Delaware
| Animal Control-Office of Animal Welfare | (302) 255-4646 |
| Attorney General's Office | (302) 856-5353 |
| Birth/Death Certificates | (302) 856-5495 |
| Business Licenses | (302) 856-5358 |
| Chancery Court | (302) 856-5775 |
| Court of Common Pleas | (302) 858-5700 |
| Department of Education | 1-800-464-4357 |
| DMV | (302) 853-1000 |
| Division of Public Health | (302) 856-5355 |
| Divorce Decrees | (302) 855-7478 |
| DNREC Reporting Line | (302) 855-1955 |
| Dog Licenses | 1-877-730-6347 |
| Family Court | (302) 855-7400 |
| Governor's Office | (302) 744-4101 |
| House of Representatives | (302) 744-4087 |
| Mosquito Spraying | (302) 422-1512 |
| Plumbing Code/Inspections | (302) 856-5122 |
| Public Defenders Office | (302) 856-5310 |
| Public Service Commission | (302) 746-7500 |
| Roads/Transportation (DELDOT) | 1-800-652-5600 |
| Secretary of State (incorporating) | (302) 739-3073 |
| Secretary of State (notarization) | (302) 739-4111 |
| Senate | (302) 744-4129 |
| Septic Systems/Wells (DNREC) | (302) 856-4561 |
| Sussex Conservation District | (302) 856-2105 |
| Trash (DE Solid Waste Auth.) | (302) 875-2004 |
| Unemployment | (302) 856-5611 |
| Voter Registration | (302) 856-5367 |
State Police
| Troop 4, Georgetown | (302) 856-5850 |
| Troop 5, Bridgeville | (302) 337-1090 |
| Troop 7, Lewes | (302) 644-5020 |
Justice of the Peace Courts
| Court 2, Rehoboth Beach | (302) 645-6163 |
| Court 3, Georgetown (Criminal) | (302) 856-1445 |
| Court 4, Seaford | (302) 628-2036 |
| Court 14, (DUI/Truancy) | (302) 856-4657 |
| Court 17, Georgetown (Civil) | (302) 856-1447 |
Sussex County Superior Court
| Criminal | (302) 855-7055 |
| Civil | (302) 855-7055 |
| Jury | (302) 855-7055 |
U.S. Government
| Social Security Administration | 1-866-864-1803 |
| Congresswoman Sarah McBride | (302) 830-2330 |
| Senator Christopher Coons | (302) 736-5601 |
| Senator Lisa Blunt Rochester | (302) 856-7690 |