College Scorecard data · Updated August 17, 2026
| Tuition | Difference | |
|---|---|---|
| Principia College (in-state) | $34,680 | — |
| IL average | $18,678 | +86% |
| National average | $18,082 | +92% |
In-state tuition at Principia College is $34,680 per year; out-of-state students pay $34,680.
Principia College in-state tuition is 86% above the IL average of $18,678.
National average in-state tuition is $18,082; Principia College is 92% above that.
$34,680 is the official in-state tuition published by College Scorecard for the most recent cohort year.