| Place Name | Oak Grove |
| Place Type | Town |
| ZIP Code(s) | 72660 |
| County | Carroll County |
| Area Code(s) | 327,870 |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 407 |
| Population Growth Rate (2010-19) | 4.61% |
| Majority Ethnicity | White 93.65% |
| US Congressional District(s) | Arkansas 3rd |
| State House Districts | 98 |
| State Senate Districts | 5 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 93.65% |
| African American | 0% |
| Hispanic | 1.34% |
| Asian | 2.34% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 2.68% |