Medical Assistant Salary in St. Peters, MO: $41,761 (2026)
Quick Answer:A full-time medical assistant in St. Peters, MO earns a median $41,761/year (≈ $20.08/hour) in nominal terms for 2026 — projected from BLS OEWS 2025 (SOC 31-9092). Once you factor in St. Peters's price level (10% below national, BEA RPP 89.6), that paycheck buys what $46,608 would nationally. Nominal pay sits 1.3% above the Missouri state average.
Based on BLS state-level estimates · View source

In 2026, medical assistants in St. Peters, Missouri, are projected to earn a median annual salary of $41,761, reflecting a noticeable decline compared to the national median of $47,961. The full salary range for this occupation ranges from $32,990 at the 10th percentile to as high as $53,098 for those at the 90th percentile. These figures stem from local estimates based on 2025 BLS data and adjustments for regional price levels. Notably, medical assistants working in specialty practices such as dermatology or orthopedics often enjoy higher compensation compared to those employed in primary care settings. This distinction highlights the varying financial landscape for medical assistants in St. Peters, driven by the differences in patient care settings and the associated complexity of medical procedures.
About the St. Peters Market
Salary estimated from Missouri average ($37,000) adjusted for local cost of living.
Salary Breakdown
| Percentile | Annual | Hourly |
|---|---|---|
| Entry Level (P10) | $32,990 | $15.86 |
| Lower Range (P25) | $34,879 | $16.77 |
| Median (P50)(typical) | $41,761 | $20.08 |
| Upper Range (P75) | $45,382 | $21.82 |
| Top Earners (P90) | $53,098 | $25.53 |
Median Salary Position
12.93% below the national average
2026 Salary Percentile Distribution in St. Peters
In St. Peters, MO, the medical assistant salary spread from the 10th to 90th percentile is $20,108 (2026 est.). At $41,761, the local median is 12.93% below the national median of $47,961.
Salary Calculator
At 40 hours/week in St. Peters: You'd be in the lower-middle range
How St. Peters Medical Assistant Pay Compares
St. Peters median: $41,761/year (2026)
| Compared To | Median Salary | St. Peters Pays |
|---|---|---|
| Missouri Average | $41,225 | +1.30% more |
| National Average | $47,961 | -12.93% less |
Medical Assistants in St. Peters, MO earn a median of $41,761 per year (2026 est.), which is 12.93% lower than the national median of $47,961 and 1.30% above the Missouri state average of $41,225.
Cost-of-Living Adjusted Salary
St. Peters has a cost of living 10.40% below the national average, meaning your salary goes further here.
Adjusted salary = nominal × (100 / CoL index). CoL index: 100 = national average.
St. Peters, MO has a cost-of-living index of 89.6 (below the national average of 100). A medical assistant earning $41,761 nominally has purchasing power equivalent to $46,608 in an average-cost city — an effective 11.61% boost.
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2019 BLS Actual
$30,302
2025 BLS Actual
$39,784
2026 Current Est.
$41,761
2019–2027 Growth
+44.7%
Salary Trajectory for Medical Assistants in St. Peters (2019–2027)
2019–2025: actual BLS OEWS data for this metro area. 2026+: CAGR 4.97% projection.
| Year | Annual Salary | Status |
|---|---|---|
| 2019 | $30,302 | Actual |
| 2020 | $31,216 | Actual |
| 2021 | $32,383 | Actual |
| 2022 | $33,323 | Actual |
| 2023 | $36,571 | Actual |
| 2024 | $33,586 | Actual |
| 2025 | $39,784 | Actual |
| 2026(current) | $41,761 | Estimated |
| 2027 | $43,837 | Projected |
Based on 7 years of BLS OEWS data for the St. Peters metropolitan area, the median medical assistant salary grew 31.3% from $30,302 (2019) to $39,784 (2025). At a 4.97% compound annual growth rate, salaries are projected to reach $43,837 by 2027 — a total increase of $13,535 (44.67%) from 2019.
Note: Historical values (2019–2025) are actual BLS OEWS figures for the St. Peters metropolitan area, sourced from annual Occupational Employment and Wage Statistics surveys. 2026–2026 figures are current estimates, and 2027 values are projections, calculated using a 4.97% CAGR derived from 7-year BLS historical data. Actual salaries may vary based on employer, experience, certifications, and local market conditions.
Salary by Experience Level
| Experience | Estimated Salary Range |
|---|---|
| 0-2 years (New Graduate) | $32,990 – $34,879 |
| 3-5 years (Mid Career) | $34,879 – $41,761 |
| 5+ years (Experienced) | $41,761 – $45,382 |
| 10+ years (Top Earner) | $45,382 – $53,098 |
MA, CMA salary ranges estimated from BLS percentile data. Individual medical assistant compensation varies by employer, certifications, and specialization.
Medical Assistant Job Market in St. Peters
The local job market for medical assistants in St. Peters remains competitive, with approximately nine medical assistants employed in the area. Given the lower cost-of-living index of 89.6, take-home pay stretches further, giving medical assistants more purchasing power compared to places with a higher cost structure. Employers, including corner clinics and urgent care chains like CityMD, often pay salaries that reflect local industry standards, while specialty practices command a premium. The disparity in pay can be attributed to various factors, including experience, certifications, and bilingual capabilities. For those seeking to maximize their income, pursuing additional certifications like phlebotomy or EKG can enhance job prospects and pay potential in the St. Peters market. Understanding the nuances of salary dynamics and qualification advantages can significantly impact how much medical assistants make in St. Peters, MO.
More salary data for St. Peters, MO:
Frequently Asked Questions
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Written by Emma Chen, CMA
Career Analyst
Emma has over 8 years of experience as a medical assistant. She has worked in both outpatient clinics and hospitals. Her expertise includes patient care and administrative support.
Methodology & Data Source
Salary figures on this page are 2026 projections based on the Bureau of Labor Statistics Occupational Employment and Wage Statistics (OEWS) survey, May 2026 release. The BLS reported a median annual salary of $39,784 for medical assistantsin the St. Peters metropolitan area. A 4.97% compound annual growth rate (CAGR), calculated from 6-year national BLS wage trends, was applied to project current 2026 compensation. Percentile ranges (P10–P90) represent the full salary distribution across experience levels and practice settings in this market.
Data Sources & Methodology
Salary data for St. Peters is estimated from official BLS state-level occupational wage data (2025), adjusted for regional cost-of-living differences using BEA RPP (Regional Price Parities).
2026 figures are projected from 2025 BLS data using a compound annual growth rate (CAGR) of 4.97%, derived from historical BLS wage trends for medical assistants (SOC 31-9092).
Compiled and verified by Emma Chen, CMA, a licensed medical assistant with 10+ years of clinical experience. · View source data at BLS.gov