The Milam Appraisal District is responsible for the fair market appraisal of properties within each of the following taxing entities:
| School Districts |
| Buckholts ISD |
| Cameron ISD |
| Gause ISD |
| Milano ISD |
| Rockdale ISD |
| Thorndale ISD |
| Shared School Districts |
| Bartlett ISD (Bell County) |
| Holland ISD (Bell County) |
| Lexington ISD (Lee County) |
| Rogers ISD (Bell County) |
| Rosebud ISD (Falls County) |
| Special Districts |
| Donahoe Watershed |
| Elmcreek Watershed |
| Rockdale Hospital District |
| Milam County ESD #1 |