| Business | Phone |
| Chatham Township Community 109 E Mulberry St, Chatham 62629 | (217) 483-2488 |
| Chatham Township General Asst 704 E Chestnut St, Chatham 62629 | (217) 483-4403 |
| Chatham Township Road & Bridge 6749 Lick Rd, Chatham 62629 | (217) 483-5041 |
| Chatham Village Utility Office 116 E Mulberry St, Chatham 62629 | (217) 483-2451 |