In Illinois, the median income is $50,000, slightly above the national median of $77,719 .
However, salaries across the state can differ greatly due to varying costs of living and economic conditions. In cities like Chicago and Naperville, the cost of living is notably higher, which is reflected in median salaries reaching $65,250 in Chicago, with 80% of salaries falling between $31,668 and $143,550 . In Naperville, a suburb of Chicago, the median income is approximately $110,474, indicating a higher earning potential in these urban areas .