Tuition costs can vary significantly depending on factors like residency status, program, and financial aid. Public universities, particularly in states with lower tuition rates, often offer more affordable options. For in-state students, some of the least expensive public universities include institutions like New Mexico Highlands University and Minot State University in North Dakota, where tuition can be relatively low. However, specific tuition costs can change over time, so it's essential to check the most recent data and compare various universities before making a decision