| Place Name | Arlington Township |
| Place Type | Township |
| ZIP Code(s) | 65401 65459 65529 65550 |
| County | Phelps County |
| Area Code(s) | 573 |
| Timezone | Central Standard Time (CST) |
| Population (2021) | 2,536 |
| Majority Ethnicity | White 96.02% |
| Metro/Micro Stats Area | Rolla, MO |
| US Congressional District(s) | Missouri 8th |
| State House Districts | 121 |
| State Senate Districts | 16 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 96.02% |
| African American | 0.89% |
| Hispanic | 0.21% |
| Asian | 1.82% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.06% |