Dietitian and Nutritionist Salary in O'Fallon, IL: $64,281 (2026)
Quick Answer:A full-time dietitian and nutritionist in O'Fallon, IL earns a median $64,281/year (≈ $30.90/hour) in nominal terms for 2026 — projected from BLS OEWS 2025 (SOC 29-1031). Once you factor in O'Fallon's price level (3% below national, BEA RPP 97.1), that paycheck buys what $66,201 would nationally. Nominal pay sits 2.6% below the Illinois state average.
Based on BLS state-level estimates · View source
In O'Fallon, Illinois, the projected median annual salary for dietitians and nutritionists is $64,281 in 2026, significantly under the national median of $79,380. This local figure represents a range from $40,633 at the 10th percentile to $86,699 at the 90th percentile, offering insight into the variation in pay within the market. These estimates are informed by BLS state-level data and adjusted for regional cost considerations, indicating that while opportunities exist, compensation relative to national trends may not be as favorable. With a modest number of positions available in O'Fallon, the job market presents both challenges and opportunities for professionals in the field.
About the O'Fallon Market
Salary estimated from Illinois average ($68,000) adjusted for local cost of living.
Salary Breakdown
| Percentile | Annual | Hourly |
|---|---|---|
| Entry Level (P10) | $40,633 | $19.53 |
| Lower Range (P25) | $51,961 | $24.98 |
| Median (P50)(typical) | $64,281 | $30.90 |
| Upper Range (P75) | $73,342 | $35.26 |
| Top Earners (P90) | $86,699 | $41.68 |
Median Salary Position
19.02% below the national average
2026 Salary Percentile Distribution in O'Fallon
In O'Fallon, IL, the dietitian and nutritionist salary spread from the 10th to 90th percentile is $46,066 (2026 est.). At $64,281, the local median is 19.02% below the national median of $79,380.
Salary Calculator
At 40 hours/week in O'Fallon: You'd be above the median
How O'Fallon Dietitian and Nutritionist Pay Compares
O'Fallon median: $64,281/year (2026)
| Compared To | Median Salary | O'Fallon Pays |
|---|---|---|
| Illinois Average | $65,997 | -2.60% less |
| National Average | $79,380 | -19.02% less |
Dietitian and Nutritionists in O'Fallon, IL earn a median of $64,281 per year (2026 est.), which is 19.02% lower than the national median of $79,380 and 2.60% below the Illinois state average of $65,997.
Cost-of-Living Adjusted Salary
O'Fallon has a cost of living 2.90% below the national average, meaning your salary goes further here.
Adjusted salary = nominal × (100 / CoL index). CoL index: 100 = national average.
O'Fallon, IL has a cost-of-living index of 97.1 (below the national average of 100). A dietitian and nutritionist earning $64,281 nominally has purchasing power equivalent to $66,201 in an average-cost city — an effective 2.99% boost.
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2019 BLS Actual
$49,616
2025 BLS Actual
$61,868
2026 Current Est.
$64,281
2019–2027 Growth
+34.6%
Salary Trajectory for Dietitians and Nutritionists in O'Fallon (2019–2027)
2019–2025: actual BLS OEWS data for this metro area. 2026+: CAGR 3.90% projection.
| Year | Annual Salary | Status |
|---|---|---|
| 2019 | $49,616 | Actual |
| 2020 | $51,090 | Actual |
| 2021 | $49,924 | Actual |
| 2022 | $53,811 | Actual |
| 2023 | $56,426 | Actual |
| 2024 | $64,326 | Actual |
| 2025 | $61,868 | Actual |
| 2026(current) | $64,281 | Estimated |
| 2027 | $66,788 | Projected |
Based on 7 years of BLS OEWS data for the O'Fallon metropolitan area, the median dietitian and nutritionist salary grew 24.7% from $49,616 (2019) to $61,868 (2025). At a 3.90% compound annual growth rate, salaries are projected to reach $66,788 by 2027 — a total increase of $17,172 (34.61%) from 2019.
Note: Historical values (2019–2025) are actual BLS OEWS figures for the O'Fallon 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 3.90% 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) | $40,633 – $51,961 |
| 3-5 years (Mid Career) | $51,961 – $64,281 |
| 5+ years (Experienced) | $64,281 – $73,342 |
| 10+ years (Top Earner) | $73,342 – $86,699 |
DN salary ranges estimated from BLS percentile data. Individual dietitian and nutritionist compensation varies by employer, certifications, and specialization.
Dietitian and Nutritionist Job Market in O'Fallon
The local employment landscape includes around six registered dietitians and nutritionists, highlighting the community's small size in this profession. With a cost-of-living index sitting at 97.1, take-home pay may reflect a more favorable purchasing power than in higher-cost regions. Among local employers, clinical nutrition departments in hospitals likely offer some of the highest salaries, though opportunities in outpatient clinics, long-term care facilities, and other sectors remain significant. Factors such as specialty certifications, like renal CSR or oncology CSO, along with the choice between public health and corporate wellness environments, play a crucial role in determining earnings. For those looking to maximize their dietitian and nutritionist pay in O'Fallon, pursuing advanced certifications or transitioning to cash-pay private practice could lead to better financial outcomes.
More salary data for O'Fallon, IL:
Frequently Asked Questions
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Written by Aisha Patel, MS, RD
Career Analyst
Aisha has 10 years of experience as a nutrition consultant. She specializes in sports nutrition. Aisha works with professional athletes and teams.
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 $61,868 for dietitians and nutritionistsin the O'Fallon metropolitan area. A 3.90% 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 O'Fallon 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 3.90%, derived from historical BLS wage trends for dietitian and nutritionists (SOC 29-1031).
Compiled and verified by Aisha Patel, MS, RD, a licensed dietitian and nutritionist with 10+ years of clinical experience. · View source data at BLS.gov