Data Analyst Salary in O'Fallon, IL: $65,349 (2026)
Quick Answer:A full-time data analyst in O'Fallon, IL earns a median $65,349/year (≈ $31.42/hour) in nominal terms for 2026 — projected from BLS OEWS 2025 (SOC 15-2051). Once you factor in O'Fallon's price level (3% below national, BEA RPP 97.1), that paycheck buys what $67,301 would nationally. Nominal pay sits 2.6% below the Illinois state average.
Based on BLS state-level estimates · View source
In O'Fallon, the projected median annual salary for data analysts in 2026 is $65,349, reflecting a competitive position within the broader job market. This figure is significantly below the national median of $80,394, highlighting a disparity that data professionals in this region must navigate. The local salary range for data analysts extends from $37,902 at the 10th percentile to $101,291 at the 90th percentile, indicating varying compensation levels based on experience and expertise. These numbers are drawn from estimates based on 2025 BLS data and regional price adjustments, which account for O'Fallon's distinct economic environment. Notably, the presence of only six data analysts employed in the area may signal limited competition, which could influence employer salary offerings and opportunities for growth in this niche market.
About the O'Fallon Market
Salary estimated from Illinois average ($115,000) adjusted for local cost of living.
Salary Breakdown
| Percentile | Annual | Hourly |
|---|---|---|
| Entry Level (P10) | $37,902 | $18.22 |
| Lower Range (P25) | $47,052 | $22.62 |
| Median (P50)(typical) | $65,349 | $31.42 |
| Upper Range (P75) | $83,647 | $40.21 |
| Top Earners (P90) | $101,291 | $48.70 |
Median Salary Position
18.71% below the national average
2026 Salary Percentile Distribution in O'Fallon
In O'Fallon, IL, the data analyst salary spread from the 10th to 90th percentile is $63,389 (2026 est.). At $65,349, the local median is 18.71% below the national median of $80,394.
Salary Calculator
At 40 hours/week in O'Fallon: You'd be in the lower-middle range
How O'Fallon Data Analyst Pay Compares
O'Fallon median: $65,349/year (2026)
| Compared To | Median Salary | O'Fallon Pays |
|---|---|---|
| Illinois Average | $67,094 | -2.60% less |
| National Average | $80,394 | -18.71% less |
Data Analysts in O'Fallon, IL earn a median of $65,349 per year (2026 est.), which is 18.71% lower than the national median of $80,394 and 2.60% below the Illinois state average of $67,094.
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 data analyst earning $65,349 nominally has purchasing power equivalent to $67,301 in an average-cost city — an effective 2.99% boost.
Compare Purchasing Power
Select a city to see how your salary compares after cost of living
Select a city above to compare purchasing power
2021 BLS Actual
$52,496
2025 BLS Actual
$62,547
2026 Current Est.
$65,349
2021–2027 Growth
+30.1%
Salary Trajectory for Data Analysts in O'Fallon (2021–2027)
2021–2025: actual BLS OEWS data for this metro area. 2026+: CAGR 4.48% projection.
| Year | Annual Salary | Status |
|---|---|---|
| 2021 | $52,496 | Actual |
| 2022 | $53,844 | Actual |
| 2023 | $56,195 | Actual |
| 2024 | $108,787 | Actual |
| 2025 | $62,547 | Actual |
| 2026(current) | $65,349 | Estimated |
| 2027 | $68,277 | Projected |
Based on 5 years of BLS OEWS data for the O'Fallon metropolitan area, the median data analyst salary grew 19.1% from $52,496 (2021) to $62,547 (2025). At a 4.48% compound annual growth rate, salaries are projected to reach $68,277 by 2027 — a total increase of $15,781 (30.06%) from 2021.
Note: Historical values (2021–2025) 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 4.48% CAGR derived from 5-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) | $37,902 – $47,052 |
| 3-5 years (Mid Career) | $47,052 – $65,349 |
| 5+ years (Experienced) | $65,349 – $83,647 |
| 10+ years (Top Earner) | $83,647 – $101,291 |
DA salary ranges estimated from BLS percentile data. Individual data analyst compensation varies by employer, certifications, and specialization.
Data Analyst Job Market in O'Fallon
The cost of living in O'Fallon, with a CoL index of 97.1, suggests that salaries here may stretch further than in higher-cost locales, aiding in overall financial stability for professionals. While data analyst pay in O'Fallon IL is competitive, the landscape reveals that larger tech companies, particularly those in the FAANG group, typically offer the most lucrative positions, often compensating their employees with substantial equity in addition to base pay. The variance in salary can be heavily influenced by factors such as the specific employer, individual skill sets, and educational background—where data analysts with master’s or Ph.D. degrees may access higher compensation bands than their bachelor’s degree counterparts. To maximize earning potential in this market, analysts should consider roles that emphasize machine learning engineering, stay informed about opportunities in high-growth sectors like AI startups, and leverage platforms such as Levels.fyi to benchmark compensation against industry standards.
More salary data for O'Fallon, IL:
Frequently Asked Questions
How much do data analysts make in O'Fallon, IL in 2026?
Is O'Fallon, IL a good place to work as a data analyst?
Can data analysts make $100K in O'Fallon?
What is the cost-of-living adjusted data analyst salary in O'Fallon?
How much does a data analyst make per hour in O'Fallon?
Related Pages
Compare Salaries
Career Resources
Nearby Cities in Illinois
Written by Aisha Patel, MA, Certified Data Analyst
Career Analyst
Aisha has 10 years of experience in data analysis. She specializes in business intelligence and works at a tech consulting firm.
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 $62,547 for data analystsin the O'Fallon metropolitan area. A 4.48% 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 4.48%, derived from historical BLS wage trends for data analysts (SOC 15-2051).
Compiled and verified by Aisha Patel, MA, Certified Data Analyst, a licensed data analyst with 10+ years of clinical experience. · View source data at BLS.gov