| Place Name | Mason Township |
| Place Type | Township |
| ZIP Code(s) | 62426 62443 |
| County | Effingham County |
| Area Code(s) | 618,217 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 1,501 |
| Majority Ethnicity | White 93.42% |
| Metro/Micro Stats Area | Effingham, IL |
| US Congressional District(s) | Illinois 15th |
| State House Districts | 107 |
| State Senate Districts | 54 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 93.42% |
| African American | 0% |
| Hispanic | 0.13% |
| Asian | 1.68% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 4.77% |