| Business | Phone |
| Clay County Commissioner 712 5th St, Clay Center 67432 | (785) 632-5237 |
| Clay County Engineer 1515 17th Rd, Clay Center 67432 | (785) 632-3456 |
| Clay County Extension Agents 322 Grant Ave, Clay Center 67432 | (785) 632-5335 |
| Clay County Motor Vehicle Dept 712 5th St, Clay Center 67432 | (785) 632-3619 |
| Clay County Reappraiser Office 712 5th St, Clay Center 67432 | (785) 632-5264 |
| Clay County Register Of Deeds 712 5th St, Clay Center 67432 | (785) 632-3811 |
| Clay County Tool House 1515 17th Rd, Clay Center 67432 | (785) 632-2941 |