Custom Computer Programming Services in Illinois

Custom Computer Programming Services (NAICS 541511) in Illinois reports 43,213 workers across 2,838 establishments, with $5.3B of aggregate annual payroll flowing through Census CBP 2023 filings. That represents 4.3% of national employment for this industry, a concentration ratio that tells you whether Illinois is a primary labor market for this NAICS code or a smaller satellite. A share above 5% signals a meaningful regional cluster; below 1% usually means the state is not a structural fit for this industry at scale. Illinois accounts for 4.2% of the national Custom Computer Programming Services establishment count (2,838 of 68,051), according to Census County Business Patterns.

Wage benchmarking is where state-level data earns its keep. The average annual compensation for Custom Computer Programming Services employees in Illinois is $123,310/yr, versus a national average of $124,254/yr. Illinois pays below the national average for this industry, common in lower cost-of-living states or where the industry has a smaller, less specialized local workforce.

Profitability data is only available at the national level because the IRS Statistics of Income program does not publish state-level margin breakdowns. The national net profit margin for Custom Computer Programming Services is not reported, and while margins do vary by state, the direction of variance usually follows labor cost and establishment size, both shown above. For a complete picture, pair this state-industry view with the Custom Computer Programming Services national page (entity structure, SBA lending, sub-industries) and the Illinois overview (top employers, payroll dispersion across industries).