Occupational Therapy Assistant Salary in Illinois

Occupational Therapy Assistants in Illinois have a median annual salary of $64,120, which works out to about $30.83 per hour, with a typical 25th–75th percentile range of $59,460 to $73,850, based on the latest BLS OEWS data.

31-2011 · Occupational Therapy Assistants

Occupational Therapy Assistant pay in Illinois at a glance

Median annual salary

$64,120

Median hourly wage

$30.83/hr

Average annual salary

$65,580

Average hourly wage

$31.53/hr

25th percentile

$59,460

75th percentile

$73,850

10th percentile

$47,830

90th percentile

$80,150

People employed

2,470

Salary distribution

Reported wage points from the lowest to the highest paid occupational therapy assistant roles in Illinois.

10th percentile
$47,830
25th percentile
$59,460
Median percentile
$64,120
75th percentile
$73,850
90th percentile
$80,150

Illinois vs U.S. salary

The median salary for occupational therapy assistant roles in Illinois is about 11.3% below the U.S. median of $72,300 for the same occupation.

See the national occupational therapy assistant benchmark →

Compare your salary

Compare your own pay as occupational therapy assistant in Illinois

Free and private — your salary is never stored or shared.

How much does a occupational therapy assistant make in Illinois?

Half of occupational therapy assistant roles in Illinois report earning more than $64,120 a year and half report earning less — that is the median. The mean (average) of $65,580 is pulled up or down by the highest and lowest earners, which is why the median is usually the better benchmark.

Salary range

A quarter of reported salaries fall below $59,460 and a quarter are above $73,850, so most occupational therapy assistant pay sits between those two figures. These percentiles describe how pay is spread across all reported roles — they are not a direct measure of years of experience.

What can affect occupational therapy assistant pay?

  • Years of experience and level of responsibility
  • Employer type and size
  • Specialization within the occupation
  • Certifications and licensing
  • Industry
  • Hours worked, shift patterns and overtime
  • The local labor market where the job is based

Occupational Therapy Assistant pay in other states

Related jobs in Illinois

Want to see how your pay compares?

Check any job title and location against the latest official wage data.

Open the salary calculator

Source: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025. Methodology · Data sources

Salary figures are benchmarks and can vary by employer, experience, specialization, hours worked and other factors.