| Business | Phone |
| Duncan Animal Shelter 800 W Martin Luther King Blvd, Duncan 73533 | (580) 252-6608 |
| Duncan City Dog Pound 18 S 7th St, Duncan 73533 | (580) 252-6608 |
| Duncan City Sewer Plant S Of City, Duncan 73533 | (580) 252-0250 |
| Duncan City Streets 800 W Fair Park Blvd, Duncan 73533 | (580) 252-0250 |
| Duncan Water Filter Plant Rr 4 Box 241f1, Duncan 73533 | (580) 255-9190 |
| Lake Duncan Caretaker Po Box 18, Duncan 73534 | (580) 255-9183 |