| Business | Phone |
| City Manager's Office 220 Elkton Rd, Newark 19711 | (302) 366-7020 |
| George Wilson Ctr 303 New London Rd, Newark 19711 | (302) 366-7069 |
| Newark City Building Dept 220 Elkton Rd, Newark 19711 | (302) 366-7075 |
| Newark City Electric 220 Elkton Rd, Newark 19711 | (302) 366-7050 |
| Newark Council's Office 220 Elkton Rd, Newark 19711 | (302) 366-7070 |
| Newark Personnel 220 Elkton Rd, Newark 19711 | (302) 366-7026 |
| Newark Planning Dept 220 Elkton Rd, Newark 19711 | (302) 366-7030 |
| Newark Purchasing Office 220 Elkton Rd, Newark 19711 | (302) 366-7022 |
| Newark Taxes Property 220 Elkton Rd, Newark 19711 | (302) 366-7088 |
| Parking Division 45 E Main St # 205, Newark 19711 | (302) 366-7154 |