Grantsburg Illinois Profile
| Place Name | Grantsburg |
| Place Type | Unincorporated |
| ZIP Code(s) | 62943 |
| County | Johnson County |
| Area Code(s) | 618 |
| Timezone | Central Standard Time (CST) |
| Population () | |
| Metro/Micro Stats Area | Carbondale-Marion, IL |
| US Congressional District(s) | Illinois 12th |
| State House Districts | 117 |
| State Senate Districts | 59 |