The median annual wage for Occupational Therapy Assistants in Illinois is $63,710 (May 2024 BLS OES). The mean (average) is $63,550.
Pay spans roughly $47,830 at the 10th percentile to $77,780 at the 90th, so experience and specialisation move this figure a lot. At the median that is about $30.63 per hour. An estimated 2,230 people work as occupational therapy assistants in Illinois.
| Median (annual) | $63,710 |
| Mean (annual) | $63,550 |
| Median (hourly) | $30.63 |
| 10th percentile | $47,830 |
| 90th percentile | $77,780 |
| Employment | 2,230 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.