OT Assistant Salary

Chicago vs Mount Prospect: Occupational Therapy Assistant Salary (2026)

Compare occupational therapy assistant salaries between Chicago, IL and Mount Prospect, IL. All figures are 2026 estimates projected from BLS 2025 data.

Chicago, IL
$69,746
$33.53/hr
Mount Prospect, IL
$63,446
$30.50/hr

Side-by-Side Comparison

MetricChicago, ILMount Prospect, IL
Median Salary$69,746$63,446
Hourly Rate$33.53$30.50
Entry Level (P10)$50,356$43,857
25th Percentile$63,465$52,682
75th Percentile$76,336$69,177
Top Earner (P90)$84,880$77,512
Total Employed1,71013
Side-by-side bar chart comparing Chicago ($69,746) and Mount Prospect ($63,446) occupational therapy assistant salaries.ChicagoMount ProspectMedian Salary$69,746$63,446Entry Level (P10)$50,356$43,857Top Earner (P90)$84,880$77,512US Median $74,332

Verdict

Chicago, IL offers better overall compensation for occupational therapy assistants, winning 4 out of 4 metrics compared to Mount Prospect.

The salary gap between Chicago and Mount Prospect is $6,300 (9.93%). Chicago's median is -6.17% compared to the US national median of $74,332.

Salary Range Comparison

The full salary range (10th to 90th percentile) in Chicago spans $34,524,Mount Prospect spans $33,655. Chicago has a wider pay range, meaning more potential for high earners but also more variation.

Chicago
P10 (Entry)$50,356
P25$63,465
Median$69,746
P75$76,336
P90 (Top)$84,880
Mount Prospect
P10 (Entry)$43,857
P25$52,682
Median$63,446
P75$69,177
P90 (Top)$77,512

Cost-of-Living Adjusted Comparison

After cost-of-living adjustment, Chicago ($67,326 effective) pays 3.04% more than Mount Prospect ($65,341 effective).

Chicago
Nominal: $69,746
CoL Index: 103.595
Adjusted: $67,326
Mount Prospect
Nominal: $63,446
CoL Index: 97.1
Adjusted: $65,341

Cost-of-living adjustment: salary × (100 / CoL index). Index of 100 = national average.

Which City Is Right for You?

Choose Chicago if…

  • Higher median salary ($69,746/year)
  • Better top-earner potential ($84,880)
  • Larger job market (1,710 employed)
  • Better purchasing power (CoL-adjusted: $67,326)
  • You prefer the Illinois area and lifestyle

Choose Mount Prospect if…

  • You prefer the Illinois area and lifestyle

Historical Salary Growth Comparison

Based on BLS OEWS metropolitan area data, occupational therapy assistant salaries in Chicago grew 2.8% from 2019 to 2025, compared to -6.5% growth in Mount Prospect over the same period.

Chicago, IL

+2.8%

$66,000 (2019) → $67,840 (2025)

Mount Prospect, IL

+-6.5%

$65,998 (2024) → $61,712 (2025)

View Full Salary Data

Frequently Asked Questions

Which city pays occupational therapy assistants more: Chicago or Mount Prospect?

Chicago has a higher median occupational therapy assistant salary at $69,746/year, compared to Mount Prospect at $63,446/year — a difference of $6,300 (9.93%).

What is the hourly rate difference between Chicago and Mount Prospect?

Chicago occupational therapy assistants earn $33.53/hr while Mount Prospect hygienists earn $30.50/hr (2026 est.).

Should I relocate from Chicago to Mount Prospect as a occupational therapy assistant?

Consider more than just salary when comparing Chicago and Mount Prospect. Factor in cost of living (CoL-adjusted: Chicago = $67,326, Mount Prospect = $65,341), job availability (1,710 vs 13 employed), commute, and career growth potential.

What do entry-level occupational therapy assistants earn in Chicago vs Mount Prospect?

Entry-level (10th percentile) occupational therapy assistants earn $50,356 in Chicago and $43,857 in Mount Prospect. The Chicago area offers higher starting salaries.

Related Comparisons

JL

Written by Jordan Lee, MS, OTR/L

Career Analyst

Jordan Lee has 10 years of experience as an occupational therapist. Their specialty is working with children with developmental disorders. They have worked in various healthcare settings including schools and rehabilitation facilities.

Clinically reviewed by Maria Gonzalez, COTA/LData verified by Samuel Chen, OTR/L

Methodology & Data Source

All salary figures are 2026 projections based on BLS OEWS May 2025 data. A 2.81% CAGR (derived from 6-year national BLS trends) was applied to estimate current compensation. Cost-of-living adjustments use BEA Regional Price Parity data. Actual salaries vary by employer, certifications, and experience.

Data Sources & Methodology

Source: BLS, OEWS , released .

Compiled and verified by Jordan Lee, MS, OTR/L, a licensed occupational therapy assistant with 10+ years of clinical experience. · View source data at BLS.gov