The median annual wage for Teaching Assistants, Except Postsecondary in Kennewick-Richland, WA is $43,500 (May 2024 BLS OES). The mean (average) is $42,400.
Pay spans roughly $35,770 at the 10th percentile to $49,040 at the 90th, so experience and specialisation move this figure a lot. An estimated 2,290 people work as teaching assistants, except postsecondary in Kennewick-Richland, WA.
| Median (annual) | $43,500 |
| Mean (annual) | $42,400 |
| Median (hourly) | — |
| 10th percentile | $35,770 |
| 90th percentile | $49,040 |
| Employment | 2,290 |
Updated 2026-07-23.
Source: BLS OES May 2024 — bls.gov/oes. Checked 2026-07-23.