| District Name | Arlington School District |
| State | Washington |
| County | Snohomish County |
| Statistical Area | Seattle-Tacoma-Bellevue, WA |
| Total Students (2021) | 5451 |
| District Growth Rate (2017-21) | -1.8% |
| Majority Race/Ethnicty | White (73.3%) |
| Free/Reduced Lunch Program | 34.95% |