| Place Name | Erienna Township |
| Place Type | Township |
| ZIP Code(s) | 60450 |
| County | Grundy County |
| Area Code(s) | 815,779 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 2,709 |
| Majority Ethnicity | White 91.47% |
| Metro/Micro Stats Area | Chicago-Naperville-Elgin, IL-IN-WI |
| US Congressional District(s) | Illinois 16th |
| State House Districts | 75 |
| State Senate Districts | 38 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 91.47% |
| African American | 0.34% |
| Hispanic | 0% |
| Asian | 2.8% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 5.39% |