Costs at both public and private colleges have soared more than 150% since 1975.
The most expensive states for in-state college tuition are New Hampshire, Vermont, Pennsylvania, New Jersey and Illinois. Prices in those states range from $13,190 to $15,160 a year.
The least expensive states for in-state tuition are Wyoming, Montana, New Mexico, Florida and Utah. Prices in those states range from $4,890 to $6,360 a year.