The average salary for a radiation therapist in Illinois is around $124,600 per year.
Avg Salary
Radiation therapists earn an average yearly salary of $124,600.
Wages typically start from $96,340 and go up to $124,850.
58% above national average Updated in 2025
Radiation therapist earnings by seniority
90th percentile
Top-level radiation therapist earnings begin at:
$60.02 per hour
$124,850 per year
75th percentile
Senior-level radiation therapist earnings begin at:
$60.02 per hour
$124,850 per year
50th percentile
Mid-level radiation therapist earnings begin at:
$59.91 per hour
$124,600 per year
25th percentile
Junior-level radiation therapist earnings begin at:
$51.63 per hour
$107,380 per year
10th percentile
Starting level radiation therapist earnings begin at:
$46.32 per hour
$96,340 per year
Approximate values based on highest and lowest earning segments.
Radiation therapist salary by state
| State Name | Average Salary |
|---|---|
| Missouri | $99,890 |
| Idaho | $99,660 |
| North Carolina | $99,250 |
| Nebraska | $98,670 |
| Ohio | $98,650 |
| Oklahoma | $98,390 |
| Minnesota | $98,000 |
| Kentucky | $97,760 |
| South Dakota | $97,470 |
| Indiana | $96,690 |
| Rhode Island | $95,950 |
| Michigan | $95,890 |
| Louisiana | $94,710 |
| Georgia | $94,460 |
| Wisconsin | $93,600 |
| Nevada | $92,990 |
| Mississippi | $88,100 |
| Alabama | $87,330 |
| Tennessee | $83,520 |
| Iowa | $81,610 |
| Arkansas | $78,950 |
| Alaska | $77,100 |
| West Virginia | $71,590 |
| Puerto Rico | $31,630 |
| California | $166,450 |
| Oregon | $131,600 |
| New York | $129,620 |
| New Jersey | $129,460 |
| Washington | $125,880 |
| Hawaii | $125,520 |
| Illinois | $124,600 |
| Connecticut | $116,170 |
| Kansas | $108,830 |
| Arizona | $108,760 |
| Colorado | $108,020 |
| Utah | $107,660 |
| Maryland | $107,120 |
| Massachusetts | $106,300 |
| New Hampshire | $106,270 |
| Texas | $105,770 |
| Montana | $105,400 |
| Virginia | $103,310 |
| Maine | $101,980 |
| Delaware | $101,140 |
| Vermont | $101,060 |
| Florida | $100,920 |
| South Carolina | $100,790 |
| Pennsylvania | $100,540 |
| District of Columbia | $100,250 |
| New Mexico | $100,010 |
How do radiation therapist salaries compare to similar careers?
Radiation therapists earn about the same as related careers in Illinois. On average, they make less than health services managers but more than audiologists.
| Career | Median Salary |
|---|---|
| Health services manager salary | $118K |
| Pharmacist salary | $139K |
| Physician assistant salary | $132K |
| Anesthesiologist assistant salary | $132K |
| Nurse practitioner salary | $131K |
| Radiation therapist salary | $125K |
| Certified nurse midwife salary | $121K |
| Nuclear medicine technologist salary | $105K |
| Informatics nurse specialist salary | $102K |
| Audiologist salary | $94K |
Source: CareerExplorer (Aggregated)