Radiation Therapists pay range in Louisville
New workers and the lowest-paid 10% earn about $56,010 a year or less, while the top 10% make $129,770 or more. The middle half of radiation therapists in Louisville earn between $85,030 and $105,180.
- $56K10th
- $85K25th
- $100KMedian
- $105K75th
- $130K90th
median average · bar = middle 50% of workers · how to read it
| Pay level | Per year | Per month | Per hour* |
|---|---|---|---|
| Average | $111,020 | $9,252 | $53.38 |
| Median | $100,410 | $8,368 | $48.27 |
| Entry level (25th percentile) | $85,030 | $7,086 | $40.88 |
| Experienced (75th percentile) | $105,180 | $8,765 | $50.57 |
*Hourly figures assume 2,080 paid hours a year. Hourly to annual salary.
Radiation Therapists pay in Louisville vs. Kentucky and the U.S.
Radiation therapists in Louisville earn 6% more than the Kentucky average ($105,000) and 3% less than the U.S. average ($114,990). At the median the gap is -5% against the U.S. median of $105,310.
| Area | Average | Median | 10th pct. | 90th pct. | Jobs |
|---|---|---|---|---|---|
| Louisville | $111,020 | $100,410 | $56,010 | $129,770 | 90 |
| Kentucky | $105,000 | $97,760 | $56,010 | $127,470 | 170 |
| United States | $114,990 | $105,310 | $80,560 | $156,710 | 17,070 |
State and U.S. rows: BLS statewide and national estimates, May 2025, which include rural areas.
Radiation Therapists salary after taxes in Louisville
On the average salary of $111,020, a single filer in Louisville takes home about $80,722 a year, or $6,727 a month and $3,105 every two weeks. Taxes take 27% of gross pay.
The Louisville/Jefferson County, KY-IN metro area crosses state lines, so take-home pay depends on the state where you work:
| State | Per year | Per month |
|---|---|---|
| Working in IN | $83,632 | $6,969 |
| Working in KY | $80,722 | $6,727 |
Single filer, standard deduction: federal income tax (2026 brackets), Social Security, Medicare and state income tax (2026 rules). Includes Louisville's local income tax (2.2%).
Is Louisville a good place for radiation therapists? Pay vs. cost of living
Prices in the Louisville area are 7% below the U.S. average (BEA price parity 93.1), so the average $111,020 buys what about $119,281 would buy in a typical U.S. metro. This job pays 2.1 times the median wage of all jobs in Louisville ($48,370). A typical home costs $283,232, or 2.6 years of this average salary before tax.
Radiation Therapists salary in nearby metro areas
- Cincinnati, OH$97,560
- Indianapolis, IN$94,400
- Dayton, OH$91,330
- Nashville, TN$87,990
- Columbus, OH$97,570
- Toledo, OH$98,820
Highest-paying cities for radiation therapists
San Francisco, CA pays this job the most of the metro areas we cover ($197,410).
- San Francisco, CA$197,410
- San Jose, CA$197,360
- Sacramento, CA$187,220
- San Diego, CA$167,150
- Los Angeles, CA$164,410
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Radiation Therapists salary in Louisville: questions
How much do radiation therapists make an hour in Louisville?
$53.38 an hour on average, and $48.28 at the median (BLS, May 2025).
What is the entry-level radiation therapists salary in Louisville?
The lowest-paid 10% earn about $56,010 a year and the 25th percentile is $85,030, a fair guide to starting pay.
What is the radiation therapists take-home pay in Louisville?
About $80,722 a year ($6,727 a month) for a single filer on the average salary of $111,020. Includes Louisville's local income tax (2.2%).
Do radiation therapists earn more in Louisville than elsewhere?
The average here is 3% less than the U.S. average for this job ($114,990).
Sources and how to read this page
- Wages: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics (OEWS), May 2025 estimates for metropolitan areas. SOC code 29-1124; area Louisville/Jefferson County, KY-IN (31140). Relative standard error of the mean wage: 5.9%.
- U.S. and statewide figures: BLS OEWS national and state estimates, May 2025, every employer including rural areas.
- Cost of living: Bureau of Economic Analysis regional price parities (RPP), 2024; 100 = U.S. average.
- Home value: Zillow Home Value Index. Typical-wage figure: OEWS all occupations, same metro.
- Take-home pay: Single filer, standard deduction: federal income tax (2026 brackets), Social Security, Medicare and state income tax (2026 rules). Includes Louisville's local income tax (2.2%).
- Job concentration: location quotient 1.14, this job is about as common as in the U.S. overall.
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