Radiation Therapist salary in Illinois
Radiation Therapists in Illinois earn a median of $124,600 a year ($59.91 an hour), based on BLS data for this job.
Pay ranges from $96,340 for the lowest-paid 10% to $124,850 for the top 10%. That is 18% higher than the national median of $105,310. Illinois ranks 7th of 46 states for radiation therapists pay. The average (mean) salary is $114,470, close to the median.
Pay range for radiation therapists in Illinois
| Pay level | Yearly | Hourly |
|---|---|---|
| 10th percentile (entry level) | $96,340 | $46.32 |
| 25th percentile | $107,380 | $51.63 |
| Median | $124,600 | $59.91 |
| 75th percentile | $124,850 | $60.02 |
| 90th percentile (top earners) | $124,850 | $60.02 |
| Average (mean) | $114,470 | $55.03 |
Half of radiation therapists earn more than the median and half earn less. Percentiles show the spread: 10% earn less than the 10th percentile, and 10% earn more than the 90th.
Median paycheck, before taxes
| Pay period | Amount |
|---|---|
| Monthly | $10,383.33 |
| Semi-monthly (24 a year) | $5,191.67 |
| Biweekly (26 a year) | $4,792.31 |
| Weekly | $2,396.15 |
| Hourly | $59.91 |
Based on a full-time year of 2,080 hours. Convert any amount with the hourly to salary converter.
Radiation Therapist salary in cities in Illinois
| Metro area | Median salary | Workers |
|---|---|---|
| Chicago-Naperville-Elgin, IL-IN | $124,850 | n/a |
| St. Louis, MO-IL | $105,310 | 200 |
Highest-paying states for radiation therapists
| State | Median salary |
|---|---|
| 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 |
Related jobs in Illinois
| Job | Median salary | Hourly |
|---|---|---|
| Registered Nurse | $95,990 | $46.15 |
| Physicians, All Other | $132,540 | $63.72 |
| Pharmacist | $139,080 | $66.86 |
| Physical Therapist | $105,250 | $50.60 |
| Nurse Practitioner | $130,680 | $62.83 |
| Speech-Language Pathologist | $95,080 | $45.71 |
| Dental Hygienist | $96,670 | $46.48 |
| Occupational Therapist | $99,700 | $47.93 |
| Dentists, General | $156,110 | $75.06 |
| Respiratory Therapist | $84,090 | $40.43 |
| Physician Assistant | $131,950 | $63.44 |
| Dietitians and Nutritionists | $73,520 | $35.35 |
| Veterinarian | $133,580 | $64.22 |
| Chiropractor | $66,650 | $32.04 |
More: Healthcare Practitioners and Technical Occupations · all salaries in Illinois
Source: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025 estimates, occupation code 29-1124. Wages include base pay, tips, commissions and shift pay, but not overtime, bonuses or benefits, and exclude the self-employed.
Frequently asked questions
How much does a radiation therapist make in Illinois?
The median salary for radiation therapists in Illinois is $124,600 a year, or $59.91 an hour. Pay ranges from $96,340 for the lowest-paid 10% to $124,850 for the top 10%.
How much do the highest-paid radiation therapists make in Illinois?
The top 10% of radiation therapists in Illinois earn at least $124,850 a year. The top 25% earn $124,850 or more.
What is the starting pay for radiation therapists in Illinois?
Entry-level pay (the 10th percentile) is about $96,340 a year, and a quarter of radiation therapists earn $107,380 or less.