| Business | Phone |
| Plainfield Village Adm 24000 W Lockport St, Plainfield 60544 | (815) 436-7093 |
| Plainfield Ambulance Dept 703 N Des Plaines St, Plainfield 60544 | (815) 436-7096 |
| Plainfield Village Building 24401 W Lockport St, Plainfield 60544 | (815) 439-2937 |
| Plainfield Water Dept 14400 Coil Plus Dr, Plainfield 60544 | (815) 436-3577 |
| Plainfield Township Mntnc 1025 E Lockport Rd, Plainfield 60544 | (815) 254-4935 |
| Plainfield Township Assessor 22525 W Lockport St, Plainfield 60544 | (815) 436-5110 |
| Plainfield Twp Highway Comm 22525 W Lockport St, Plainfield 60544 | (815) 436-6090 |
| Plainfield Twp Suprvisor 22525 W Lockport St, Plainfield 60544 | (815) 436-8308 |