| Place Name | Summit Township (Clay County) |
| Place Type | Township |
| ZIP Code(s) | 51301 51338 51340 |
| County | Clay County |
| Area Code(s) | 712 |
| Timezone | Central Standard Time (CST) |
| Population (2021) | 316 |
| Majority Ethnicity | White 98.1% |
| Metro/Micro Stats Area | Spencer, IA |
| US Congressional District(s) | Iowa 4th |
| State House Districts | 2 |
| State Senate Districts | 1 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 98.1% |
| African American | 0.32% |
| Hispanic | 0.63% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0.95% |