Assessment Officials
Township Assessors
| Township | Name | Address | Phone |
| Buckeye | County Assessment Office | 50 W. Douglas St, Suite 502 Freeport, IL 61032 | 815-235-8260 |
| Dakota | County Assessment Office | 50 W. Douglas St, Suite 502 Freeport, IL 61032 | 815-235-8260 |
| Erin | County Assessment Office | 50 W. Douglas St, Suite 502 Freeport, IL 61032 | 815-235-8260 |
| Florence | County Assessment Office | 50 W. Douglas St, Suite 502 Freeport, IL 61032 | 815-235-8260 |
| Freeport | Meta Ridgway, CIAO-I | 524 W. Stephenson St. Freeport, IL 61032 | 815-232-6131 |
| Harlem | County Assessment Office | 50 W. Douglas St, Suite 502 Freeport, IL 61032 | 815-235-8260 |
| Jefferson | County Assessment Office | 50 W. Douglas St, Suite 502 Freeport, IL 61032 | 815-235-8260 |
| Kent | County Assessment Office | 50 W. Douglas St, Suite 502 Freeport, IL 61032 | 815-235-8260 |
| Lancaster | County Assessment Office | 50 W. Douglas St, Suite 502 Freeport, IL 61032 | 815-235-8260 |
| Loran | County Assessment Office | 50 W. Douglas St, Suite 502 Freeport, IL 61032 | 815-235-8260 |
| Oneco | County Assessment Office | 50 W. Douglas St, Suite 502 Freeport, IL 61032 | 815-235-8260 |
| Ridott | County Assessment Office | 50 W. Douglas St, Suite 502 Freeport, IL 61032 | 815-235-8260 |
| Rock Grove | County Assessment Office | 50 W. Douglas St, Suite 502 Freeport, IL 61032 | 815-235-8260 |
| Rock Run | County Assessment Office | 50 W. Douglas St, Suite 502 Freeport, IL 61032 | 815-235-8260 |
| Silver Creek | County Assessment Office | 50 W. Douglas St, Suite 502 Freeport, IL 61032 | 815-235-8260 |
| Waddams | County Assessment Office | 50 W. Douglas St, Suite 502 Freeport, IL 61032 | 815-235-8260 |
| West Point | County Assessment Office | 50 W. Douglas St, Suite 502 Freeport, IL 61032 | 815-235-8260 |
| Winslow | County Assessment Office | 50 W. Douglas St, Suite 502 Freeport, IL 61032 | 815-235-8260 |
Board of Review
| Chairman | Brad Hartog | 50 W. Douglas St, Suite 502 Freeport, IL 61032 | 815-235-8260 |
| Member | John Trimble | 50 W. Douglas St, Suite 502 Freeport, IL 61032 | 815-235-8260 |
| Member | Marg Christensen | 50 W. Douglas St, Suite 502 Freeport, IL 61032 | 815-235-8260 |
Chief County Assessment Staff
| Chief Assessment Officer | Angie Dieterman, CIAO | 50 W. Douglas St, Suite 502 Freeport, IL 61032 | 815-235-8260 |
| Deputy Assessor | Cami Grossenbacher | 50 W. Douglas St, Suite 502 Freeport, IL 61032 | 815-235-8260 |
| Deputy Assessor | Kimber Scace | 50 W. Douglas St, Suite 502 Freeport, IL 61032 | 815-235-8260 |
