The answer to 'cost to install outlet in Illinois' is that the typical cost to install a new electrical outlet in Illinois can range from $150 to $300 on average. The actual cost will depend on several factors, including the complexity of the installation, the accessibility of the electrical panel, the need for any additional wiring or drywall work, and the hourly rates charged by the electrician.
In general, basic outlet installations in accessible locations tend to be on the lower end of the range, while more complex jobs that require running new wiring or making major modifications to the electrical system will be on the higher end. It's always best to get quotes from multiple licensed electricians in your local area to get the most accurate estimate for your specific project.