| Place Name | Big Rock |
| Place Type | Census Designated Place |
| ZIP Code(s) | 52729 52745 52765 52777 |
| County | Scott County |
| Area Code(s) | 563 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 34 |
| Majority Ethnicity | White 100% |
| Metro/Micro Stats Area | Davenport-Moline-Rock Island, IA-ILClinton, IA |
| US Congressional District(s) | Iowa 2nd |
| State House Districts | 92 |
| State Senate Districts | 46 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 100% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |