How much do Radiation Therapists make in Chicago-Naperville-Elgin, IL-IN?

Percentile spread

For Radiation Therapists, the published 10th percentile is $103,480 and the 90th percentile is $124,850. The difference is $21,370, which is 17.1% of the median. Ten percent of measured wages fall below the 10th percentile and ten percent fall above the 90th. How to read a percentile.

The middle half of the distribution, from the 25th percentile at $111,120 to the 75th at $124,850, covers $13,730.

The mean annual wage is $117,830, which sits below the median of $124,850. Median and mean measure different points in the same distribution.

National and state comparison

The Chicago-Naperville-Elgin, IL-IN median is 18.6% higher than the national median of $105,310 for Radiation Therapists. In 2024 national prices the local median is $120,517, which is 14.4% higher than that same national median. The national figure is already in national prices because the United States parity is 100.

It is 0.2% higher than the Illinois median of $124,600.

Chicago-Naperville-Elgin, IL-IN covers more than one state. The state comparison uses Illinois, the primary state on the BLS area record.

Price-adjusted pay

The 2024 all-items regional price parity for Chicago-Naperville-Elgin, IL-IN is 103.595, with the United States at 100. The Bureau of Economic Analysis released those parities on February 19, 2026. Dividing the May 2025 median of $124,850 by that parity and multiplying by 100 puts Radiation Therapists at $120,517 in national prices. The wage year and the price year are different. Compare this wage after prices.

Nearby metros

5 other metropolitan areas within 200 miles publish a annual median for Radiation Therapists. Chicago-Naperville-Elgin, IL-IN ranks 1st of 6 on that median, counting itself. Distance is the great-circle mileage between Census Bureau internal points (U.S. Census Bureau, 2024 Gazetteer Files, Core Based Statistical Areas, internal points (INTPTLAT, INTPTLONG).).

• Milwaukee-Waukesha, WI is 80 miles away, with a median of $103,180 and employment of 140. That median is 17.4% lower than the median here. In 2024 national prices it is $106,440, against $120,517 here.
• Grand Rapids-Wyoming-Kentwood, MI is 137 miles away, with a median of $83,780 and employment of 30. That median is 32.9% lower than the median here. In 2024 national prices it is $87,686, against $120,517 here.
• Indianapolis-Carmel-Greenwood, IN is 163 miles away, with a median of $98,190 and employment of 70. That median is 21.4% lower than the median here. In 2024 national prices it is $102,606, against $120,517 here.