Radiation Therapist salary in St. Louis, MO-IL
Radiation Therapists in the St. Louis, MO-IL metro area earn a median of $105,310 a year ($50.63 an hour), based on BLS data for 200 workers.
Pay ranges from $73,060 for the lowest-paid 10% to $145,670 for the top 10%. That is about the same as the national median of $105,310. Pay here is 5% higher than the Missouri statewide median of $99,890. There are 0.15 radiation therapists per 1,000 jobs here — the job is 1.3× more common than nationally. The average (mean) salary is $104,110, close to the median.
Pay range for radiation therapists in St. Louis, MO-IL
| Pay level | Yearly | Hourly |
|---|---|---|
| 10th percentile (entry level) | $73,060 | $35.12 |
| 25th percentile | $83,680 | $40.23 |
| Median | $105,310 | $50.63 |
| 75th percentile | $110,000 | $52.88 |
| 90th percentile (top earners) | $145,670 | $70.03 |
| Average (mean) | $104,110 | $50.05 |
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 | $8,775.83 |
| Semi-monthly (24 a year) | $4,387.92 |
| Biweekly (26 a year) | $4,050.38 |
| Weekly | $2,025.19 |
| Hourly | $50.63 |
Based on a full-time year of 2,080 hours. Convert any amount with the hourly to salary converter.
Radiation Therapist salary in other metro areas nearby
| Metro area | Median salary | Workers |
|---|---|---|
| Chicago-Naperville-Elgin, IL-IN | $124,850 | n/a |
| Kansas City, MO-KS | $117,280 | 220 |
| Columbia, MO | $84,980 | 60 |
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 |
See Radiation Therapist pay in every state or the Missouri statewide figures.
Related jobs in St. Louis, MO-IL
| Job | Median salary | Hourly |
|---|---|---|
| Registered Nurse | $83,180 | $39.99 |
| Nurse Practitioner | $131,580 | $63.26 |
| Pharmacist | $138,530 | $66.60 |
| Physical Therapist | $100,600 | $48.37 |
| Physicians, All Other | $246,440 | $118.48 |
| Dental Hygienist | $97,650 | $46.95 |
| Occupational Therapist | $95,770 | $46.04 |
| Family Medicine Physician | $76,830 | $36.94 |
| Speech-Language Pathologist | $86,480 | $41.58 |
| Physician Assistant | $136,120 | $65.44 |
| Respiratory Therapist | $79,210 | $38.08 |
| Dentists, General | $210,430 | $101.17 |
| Veterinarian | $122,460 | $58.87 |
| Dietitians and Nutritionists | $70,360 | $33.83 |
More: Healthcare Practitioners and Technical Occupations · all salaries in St. Louis, MO-IL
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 St. Louis, MO-IL?
The median salary for radiation therapists in the St. Louis, MO-IL metro area is $105,310 a year, or $50.63 an hour. Pay ranges from $73,060 for the lowest-paid 10% to $145,670 for the top 10%.
How much do the highest-paid radiation therapists make in St. Louis, MO-IL?
The top 10% of radiation therapists in the St. Louis, MO-IL metro area earn at least $145,670 a year. The top 25% earn $110,000 or more.
What is the starting pay for radiation therapists in St. Louis, MO-IL?
Entry-level pay (the 10th percentile) is about $73,060 a year, and a quarter of radiation therapists earn $83,680 or less.
How many radiation therapists work in St. Louis, MO-IL?
About 200 radiation therapists are employed in the St. Louis, MO-IL metro area, not counting the self-employed.