Illinois contract developer rates
What contract developers cost in Illinois (IL), by stack and occupation, plus cost of living, state tax and LLC costs for contractors.
Illinois has about 84,790 people working in the six core IT occupations BLS tracks, a median software developer salary of $132,110 (-2.8% against the US median), and estimated contract developer rates of $83–102/hr.
Contract rates by stack in Illinois
US stack rates adjusted to Illinois developer wages.
| Stack | Illinois rate | US rate | W-2 equivalent |
|---|---|---|---|
| Python | $85–105 | $88–108 | $136,300 |
| AWS | $91–112 | $93–115 | $145,000 |
| Java | $85–105 | $88–108 | $136,300 |
| .NET | $75–92 | $77–94 | $119,300 |
| Kubernetes | $96–118 | $99–121 | $153,400 |
| C++ | $80–98 | $82–101 | $127,900 |
| Docker | $88–108 | $90–111 | $140,700 |
| React | $85–105 | $88–108 | $136,300 |
| Terraform | $98–121 | $101–124 | $157,200 |
| TypeScript | $85–105 | $88–108 | $136,300 |
Each stack's US W-2 benchmark is scaled by Illinois's BLS software developer median ($132,110) divided by the US median ($135,980), a factor of 0.97, then multiplied by 1.3–1.6 for contractor tax, benefits and overhead.
The 10 stacks with the most US job postings in the last 30 days. Rates are per hour, C2C or 1099. All stacks · Rate calculator
IT wages by occupation in Illinois
| Occupation | Employment | Mean salary | Est. contract rate |
|---|---|---|---|
| Software Developers | 56,310 | $136,540 | $85–105 |
| Network and Computer Systems Administrators | 9,820 | $105,450 | $66–81 |
| Computer Network Architects | 7,810 | $138,530 | $87–107 |
| Information Security Analysts | 5,260 | $127,000 | $79–98 |
| Web Developers | 4,310 | $95,460 | $60–73 |
| Computer Programmers | 1,280 | $87,660 | $55–67 |
Source: BLS Occupational Employment and Wage Statistics (OEWS), May 2025. Contract rate = mean hourly wage × 1.3–1.6. “Not published” means BLS suppressed the estimate for this state.
Business environment for contractors
Federal IT contracts: FY2025 federal contract awards performed in the state under NAICS 5415 (computer systems design and related services). High-spending states usually have more cleared and government-adjacent contract work.
Tech hub metros
| Metro area | Cost of living | vs US |
|---|---|---|
| Chicago-Naperville-Elgin, IL-IN-WI | 103.4 | +3.4% |
| St. Louis, MO-IL | 89.2 | -10.8% |
Bureau of Economic Analysis Regional Price Parities (2022). 100 = national average.