OT Assistant Salary

Des Moines vs Waterloo: Occupational Therapy Assistant Salary (2026)

Compare occupational therapy assistant salaries between Des Moines, IA and Waterloo, IA. All figures are 2026 estimates projected from BLS 2025 data.

Des Moines, IA
$66,055
$31.76/hr
Waterloo, IA
$63,290
$30.43/hr

Side-by-Side Comparison

MetricDes Moines, IAWaterloo, IA
Median Salary$66,055$63,290
Hourly Rate$31.76$30.43
Entry Level (P10)$52,207$49,010
25th Percentile$60,658$58,458
75th Percentile$78,269$67,783
Top Earner (P90)$86,134$76,408
Total Employed8040
Side-by-side bar chart comparing Des Moines ($66,055) and Waterloo ($63,290) occupational therapy assistant salaries.Des MoinesWaterlooMedian Salary$66,055$63,290Entry Level (P10)$52,207$49,010Top Earner (P90)$86,134$76,408US Median $74,332

Verdict

Des Moines, IA offers better overall compensation for occupational therapy assistants, winning 4 out of 4 metrics compared to Waterloo.

The salary gap between Des Moines and Waterloo is $2,765 (4.37%). Des Moines's median is -11.14% compared to the US national median of $74,332.

Salary Range Comparison

The full salary range (10th to 90th percentile) in Des Moines spans $33,927,Waterloo spans $27,398. Des Moines has a wider pay range, meaning more potential for high earners but also more variation.

Des Moines
P10 (Entry)$52,207
P25$60,658
Median$66,055
P75$78,269
P90 (Top)$86,134
Waterloo
P10 (Entry)$49,010
P25$58,458
Median$63,290
P75$67,783
P90 (Top)$76,408

Cost-of-Living Adjusted Comparison

After cost-of-living adjustment, Waterloo ($72,699 effective) pays 0.93% more than Des Moines ($72,033 effective).

Des Moines
Nominal: $66,055
CoL Index: 91.701
Adjusted: $72,033
Waterloo
Nominal: $63,290
CoL Index: 87.057
Adjusted: $72,699

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

Which City Is Right for You?

Choose Des Moines if…

  • Higher median salary ($66,055/year)
  • Better top-earner potential ($86,134)
  • Larger job market (80 employed)
  • You prefer the Iowa area and lifestyle

Choose Waterloo if…

  • Better purchasing power (CoL-adjusted: $72,699)
  • You prefer the Iowa area and lifestyle

Historical Salary Growth Comparison

Based on BLS OEWS metropolitan area data, occupational therapy assistant salaries in Des Moines grew 13.5% from 2019 to 2025, compared to 12.9% growth in Waterloo over the same period.

Des Moines, IA

+13.5%

$56,590 (2019) → $64,250 (2025)

Waterloo, IA

+12.9%

$54,530 (2019) → $61,560 (2025)

View Full Salary Data

Frequently Asked Questions

Which city pays occupational therapy assistants more: Des Moines or Waterloo?

Des Moines has a higher median occupational therapy assistant salary at $66,055/year, compared to Waterloo at $63,290/year — a difference of $2,765 (4.37%).

What is the hourly rate difference between Des Moines and Waterloo?

Des Moines occupational therapy assistants earn $31.76/hr while Waterloo hygienists earn $30.43/hr (2026 est.).

Should I relocate from Des Moines to Waterloo as a occupational therapy assistant?

Consider more than just salary when comparing Des Moines and Waterloo. Factor in cost of living (CoL-adjusted: Des Moines = $72,033, Waterloo = $72,699), job availability (80 vs 40 employed), commute, and career growth potential.

What do entry-level occupational therapy assistants earn in Des Moines vs Waterloo?

Entry-level (10th percentile) occupational therapy assistants earn $52,207 in Des Moines and $49,010 in Waterloo. The Des Moines area offers higher starting salaries.
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