| Place Name | Smithfield Township |
| Place Type | Township |
| ZIP Code(s) | 27520 27524 27576 27577 |
| County | Johnston County |
| Area Code(s) | 919,984 |
| Timezone | Eastern Standard Time (EST) |
| Population (2021) | 19,305 |
| Majority Ethnicity | White 58.05% |
| Metro/Micro Stats Area | Raleigh-Cary, NC |
| US Congressional District(s) | North Carolina 2ndNorth Carolina 7th |
| State House Districts | 26,28 |
| State Senate Districts | 10,11 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 58.05% |
| African American | 19.22% |
| Hispanic | 0.49% |
| Asian | 1.05% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 21.19% |