| Business | Phone |
| Honorable Mark A Schuering 521 Vermont St, Quincy 62301 | (217) 277-2050 |
| Honorable Scott H Walden 521 Vermont St, Quincy 62301 | (217) 277-2060 |
| Honorable Thomas J Ortbal 521 Vermont St, Quincy 62301 | (217) 277-2036 |
| Quincy Risk Manager 730 Maine St 123, Quincy 62301 | (217) 228-4512 |
| Quincy Administrative Svc Quincy 62301 | (217) 228-4547 |
| Quincy City Administration 730 Maine St, Quincy 62301 | (217) 221-3673 |
| Quincy City Engineering 730 Maine St 2, Quincy 62301 | (217) 228-4527 |
| Quincy City Inspection Dept 706 Maine St, Quincy 62301 | (217) 228-4541 |
| Quincy General Assistance Ofc 706 Maine St 202, Quincy 62301 | (217) 223-4970 |
| Quincy Preservation Commission 706 Maine St, Quincy 62301 | (217) 228-4514 |
| Quincy Water Metering/Distr 2020 Jennifer Ln, Quincy 62301 | (217) 228-4588 |
| Fms 20 702 Kochs Ln, Quincy 62305 | (217) 228-2333 |
| Mississippi River Ranger 909 W Lock And Dam Rd, Quincy 62305 | (217) 228-0890 |
| South Quincy Drainage District 1034 W Turtle Lake Rd, Quincy 62305 | (217) 222-7299 |
| Township Garage 1927 Duck Harbor Rd, Quincy 62305 | (217) 222-1953 |
| Us Quincy P & Df 4330 Postal Dr, Quincy 62305 | (217) 224-5180 |