What does a Chemistry Teachers, Postsecondary salary really buy you in Illinois?
Illinois is near the US average cost of livingData: BLS OEWS 2024 + BEA Regional Price Parities 2022 • Updated 2026-03-31
Illinois's Regional Price Parity (RPP) is 101.3, meaning prices are 1.3% higher the national average. A Chemistry Teachers, Postsecondary earning $95,270 in Illinois has the equivalent purchasing power of $94,047 in an average-cost US state.
Every dollar goes further in low-cost states. Here is how each salary percentile compares after adjusting for Illinois's cost of living.
| Percentile | Nominal Salary | COL-Adjusted | Difference |
|---|---|---|---|
| 10th Percentile (P10) | $56,720 | $55,992 | $-727 |
| 25th Percentile (P25) | $62,540 | $61,737 | $-802 |
| Median (P50) | $95,270 | $94,047 | $-1,222 |
| 75th Percentile (P75) | $122,040 | $120,473 | $-1,566 |
| 90th Percentile (P90) | $159,630 | $157,581 | $-2,048 |
Illinois's cost of living is close to the national average, so $95,270 keeps most of its value at $94,047 in real terms. Location choice here is more about career opportunities than cost arbitrage.
Where does Chemistry Teachers, Postsecondary salary stretch the furthest? Top 10 states ranked by COL-adjusted median salary.
Illinois ranks #12 out of 47 states for Chemistry Teachers, Postsecondary after cost-of-living adjustment.
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A Chemistry Teachers, Postsecondary in Illinois earns a median salary of $95,270 per year. After adjusting for Illinois's cost of living (RPP=101.3), the real purchasing power is $94,047 — a -1.3% difference.
Illinois's cost of living is 1.3% higher than the national average according to the BEA Regional Price Parities (2022). The RPP index for Illinois is 101.3 (US average = 100).
Regional Price Parities (RPPs) are price indexes published by the U.S. Bureau of Economic Analysis (BEA) that measure differences in price levels across states. They are expressed as a percentage of the national average (US = 100). Higher RPP means higher cost of living.
The adjusted salary is calculated as: Nominal Salary x (100 / RPP). For a Chemistry Teachers, Postsecondary in Illinois: $95,270 x (100 / 101.3) = $94,047. This represents what the salary would be worth in a state with average living costs.