Is UC San Diego or UC Davis more affordable for an undergraduate student?

For a California resident paying the standard UC undergraduate rate, UC San Diego and UC Davis start at broadly similar tuition and required-fee levels. The meaningful affordability difference is usually housing and day-to-day living costs, where UC Davis has often been less expensive than the San Diego area. That makes Davis the more budget-friendly option for many students, especially those who expect to live off campus after their first year. Financial aid can change the result, so compare each school’s actual aid offer and current housing estimate rather than tuition alone.

UC Davis may fit a student who wants to keep a close watch on total living expenses and is comfortable in a college town where biking, local transportation, and sharing off-campus housing can be practical ways to manage costs. Its setting can reduce the pressure to spend on a car or frequent entertainment and dining in a large coastal metro area. Still, Davis housing availability and rental prices can vary, so a lower-cost reputation is not a guarantee of a cheap lease.

UC San Diego can make financial sense for a student who receives stronger net aid there, has a realistic campus-housing option, or can limit transportation costs by living and studying close to campus. San Diego’s broader housing market and everyday prices can make an off-campus budget harder to control, particularly once students are no longer in university housing. A meal plan may be convenient at either campus, but it is worth comparing its cost with a realistic grocery budget and how often you would actually use it.

For either school, build a year-by-year estimate, not just a first-year total: tuition and fees, housing, food, books, health insurance if applicable, transportation home, and personal spending.