Cities with the most
| City | Inspection stations |
|---|
Overture Maps Places (release 2026-10-21.0) · CDLA Permissive 2.0 / Apache 2.0 / CC0
All inspection stations 6
| Name | City |
|---|---|
| Clackamas DEQ Test Station | Clackamas |
| Hillsboro DEQ Test Station | Hillsboro |
| Medford DEQ Test Station | Medford |
| NE Portland DEQ Test Station | Portland |
| Scappoose DEQ Test Station | Scappoose |
| Sherwood DEQ Test Station | Sherwood |