| Business | Phone |
| Christiana Boro Office 10 W Slokom Ave, Christiana 17509 | (610) 593-5199 |
| Christiana Sewage Treatment Christiana 17509 | (610) 593-6502 |
| Sadsbury Township Supervisors 7182 White Oak Rd, Christiana 17509 | (610) 593-6796 |
| Georgetown Area Sewer Auth Christiana 17509 | (717) 786-0124 |