| Place Name | Rockdale |
| Place Type | City |
| ZIP Code(s) | 76567 |
| County | Milam County |
| Area Code(s) | 512,737 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 5,602 |
| Population Growth Rate (2010-19) | -4.86% |
| Majority Ethnicity | White 61.17% |
| US Congressional District(s) | Texas 17th |
| State House Districts | 20 |
| State Senate Districts | 5 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 61.17% |
| African American | 10.71% |
| Hispanic | 0.23% |
| Asian | 0.64% |
| Native American | 0.82% |
| Hawaiin/Pacific Islander | 26.43% |