Accountant Salary in O'Fallon, IL: $76,589 (2026)
Quick Answer:A full-time accountant in O'Fallon, IL earns a median $76,589/year (≈ $36.83/hour) in nominal terms for 2026 — projected from BLS OEWS 2025 (SOC 13-2011). Once you factor in O'Fallon's price level (3% below national, BEA RPP 97.1), that paycheck buys what $78,876 would nationally. Nominal pay sits 2.6% below the Illinois state average.
Based on BLS state-level estimates · View source
Accountants in O'Fallon, Illinois, are projected to earn a median annual salary of $76,589 in 2026, which reflects an average that is approximately 10.80% lower than the national median of $85,864. This local salary range spans from $50,540 at the 10th percentile to $118,714 at the 90th percentile, indicating significant variation based on experience, education, and the type of employer. The figures presented are derived from state-level estimates and regional price adjustments, highlighting how local economic conditions influence accountant pay in O'Fallon. In this market, obtaining a Certified Public Accountant (CPA) license can significantly elevate earnings potential as it allows individuals to advance from staff positions to senior roles, leading to higher compensation levels compared to their non-licensed counterparts.
About the O'Fallon Market
Salary estimated from Illinois average ($88,000) adjusted for local cost of living.
Salary Breakdown
| Percentile | Annual | Hourly |
|---|---|---|
| Entry Level (P10) | $50,540 | $24.30 |
| Lower Range (P25) | $59,987 | $28.84 |
| Median (P50)(typical) | $76,589 | $36.83 |
| Upper Range (P75) | $98,034 | $47.13 |
| Top Earners (P90) | $118,714 | $57.07 |
Median Salary Position
10.8% below the national average
2026 Salary Percentile Distribution in O'Fallon
In O'Fallon, IL, the accountant salary spread from the 10th to 90th percentile is $68,174 (2026 est.). At $76,589, the local median is 10.8% below the national median of $85,864.
Salary Calculator
At 40 hours/week in O'Fallon: You'd be in the lower-middle range
How O'Fallon Accountant Pay Compares
O'Fallon median: $76,589/year (2026)
| Compared To | Median Salary | O'Fallon Pays |
|---|---|---|
| Illinois Average | $78,634 | -2.60% less |
| National Average | $85,864 | -10.80% less |
Accountants in O'Fallon, IL earn a median of $76,589 per year (2026 est.), which is 10.80% lower than the national median of $85,864 and 2.60% below the Illinois state average of $78,634.
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 accountant earning $76,589 nominally has purchasing power equivalent to $78,876 in an average-cost city — an effective 2.99% boost.
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2019 BLS Actual
$63,821
2025 BLS Actual
$74,641
2026 Current Est.
$76,589
2019–2027 Growth
+23.1%
Salary Trajectory for Accountants in O'Fallon (2019–2027)
2019–2025: actual BLS OEWS data for this metro area. 2026+: CAGR 2.61% projection.
| Year | Annual Salary | Status |
|---|---|---|
| 2019 | $63,821 | Actual |
| 2020 | $65,614 | Actual |
| 2021 | $68,906 | Actual |
| 2022 | $69,575 | Actual |
| 2023 | $71,251 | Actual |
| 2024 | $83,246 | Actual |
| 2025 | $74,641 | Actual |
| 2026(current) | $76,589 | Estimated |
| 2027 | $78,588 | Projected |
Based on 7 years of BLS OEWS data for the O'Fallon metropolitan area, the median accountant salary grew 17.0% from $63,821 (2019) to $74,641 (2025). At a 2.61% compound annual growth rate, salaries are projected to reach $78,588 by 2027 — a total increase of $14,767 (23.14%) 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 2.61% 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) | $50,540 – $59,987 |
| 3-5 years (Mid Career) | $59,987 – $76,589 |
| 5+ years (Experienced) | $76,589 – $98,034 |
| 10+ years (Top Earner) | $98,034 – $118,714 |
CPA salary ranges estimated from BLS percentile data. Individual accountant compensation varies by employer, certifications, and specialization.
Accountant Job Market in O'Fallon
With only six accountants currently employed in O'Fallon, the local job market for this profession remains niche while also facing the reality of a cost-of-living index of 97.1, which is suggestive of a below-average living expense compared to national norms. This economic backdrop can enhance purchasing power, resulting in accountants having a bit more flexibility with their salaries. Employers in the area that traditionally tend to offer higher compensation include Big 4 firms like Deloitte and EY, although regional CPA firms and corporate accounting departments often present strong opportunities for competitive pay. Variations in salary are driven largely by factors such as the CPA license, the prestige of the employing firm, and specialty areas like tax or forensic accounting, which often command premiums. For accountants aiming to secure better pay in O'Fallon, focusing on gaining licensure, pursuing roles in thriving firms, and maximizing overtime opportunities during the busy season can be effective strategies.
More salary data for O'Fallon, IL:
Frequently Asked Questions
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Written by Sofia Patel, CPA
Career Analyst
Sofia Patel has over 10 years of experience in financial analysis. She specializes in tax preparation for small businesses. She has worked in both corporate and public accounting environments.
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 $74,641 for accountantsin the O'Fallon metropolitan area. A 2.61% 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 2.61%, derived from historical BLS wage trends for accountants (SOC 13-2011).
Compiled and verified by Sofia Patel, CPA, a licensed accountant with 10+ years of clinical experience. · View source data at BLS.gov