| Place Name | Parnell |
| Place Type | City |
| ZIP Code(s) | 52325 |
| County | Iowa County |
| Area Code(s) | 319 |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 164 |
| Population Growth Rate (2010-19) | 0.52% |
| Majority Ethnicity | White 97.5% |
| US Congressional District(s) | Iowa 1st |
| State House Districts | 76 |
| State Senate Districts | 38 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 97.5% |
| African American | 0% |
| Hispanic | 1.25% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.25% |