Last updated: 2025 BLS data · Page refreshed:
What does a Physics Teachers, Postsecondary salary really buy you in Illinois?
Illinois is near the US average cost of livingData: BLS OEWS 2025 + BEA Regional Price Parities 2022 • Updated 2026-05-19
Illinois's Regional Price Parity (RPP) is 101.3, meaning prices are 1.3% higher the national average. A Physics Teachers, Postsecondary earning $94,900 in Illinois has the equivalent purchasing power of $93,682 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) | $61,150 | $60,365 | $-784 |
| 25th Percentile (P25) | $67,620 | $66,752 | $-867 |
| Median (P50) | $94,900 | $93,682 | $-1,217 |
| 75th Percentile (P75) | $128,430 | $126,781 | $-1,648 |
| 90th Percentile (P90) | $166,410 | $164,274 | $-2,135 |
Illinois's cost of living is close to the national average, so $94,900 keeps most of its value at $93,682 in real terms. Location choice here is more about career opportunities than cost arbitrage.
With an RPP of 101.3, Illinois is within a few percent of the national cost-of-living baseline. Salary adjustment for Physics Teachers, Postsecondary is therefore minor — what you earn is close to what you'd keep in real purchasing power.
After adjusting for Illinois's cost of living, $94,900 nominal nets out to $93,682 in real purchasing power — a small 1.3% loss. The state's cost profile is close enough to average that COL alone shouldn't drive location decisions for this Physics Teachers, Postsecondary.
Illinois's rank of #35 of 47 states means real purchasing power for Physics Teachers, Postsecondary trails the national half-way line.
Where does Physics Teachers, Postsecondary salary stretch the furthest? Top 10 states ranked by COL-adjusted median salary.
Illinois ranks #35 out of 47 states for Physics Teachers, Postsecondary after cost-of-living adjustment.
How much do you actually take home? See Physics Teachers, Postsecondary take-home pay in Illinois after taxes →
A Physics Teachers, Postsecondary in Illinois earns a median salary of $94,900 per year. After adjusting for Illinois's cost of living (RPP=101.3), the real purchasing power is $93,682 — 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 Physics Teachers, Postsecondary in Illinois: $94,900 x (100 / 101.3) = $93,682. This represents what the salary would be worth in a state with average living costs.
Some links are affiliate links. See our disclosure.