| Place Name | Fairmont |
| Place Type | Census Designated Place |
| ZIP Code(s) | 60441 |
| County | Will County |
| Area Code(s) | 815,779 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 2,277 |
| Population Growth Rate (2010-19) | -2.85% |
| Majority Ethnicity | White 39.16% |
| Metro/Micro Stats Area | Chicago-Naperville-Elgin, IL-IN-WI |
| US Congressional District(s) | Illinois 3rd |
| State House Districts | 85 |
| State Senate Districts | 43 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 39.16% |
| African American | 25.7% |
| Hispanic | 0.1% |
| Asian | 0.79% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 34.25% |