In-state tuition and fees fell 1.5 percent for 2017-18 at University of Puerto Rico-Rio Piedras, according to the latest disclosure from the U.S. Department of Education.
Puerto Rico residents paid $2,046 to attend the four-year public institution this year $32 less than the $2,078 charged for 2016-17.
Non-resident students would have paid 127.4 percent more than residents this year, or $4,652. Non-resident tuition and fees grew 0.5 percent from $4,630 in 2016-17.
About 90 percent of the school's undergraduate population are Puerto Rico residents.
Data shows 68 percent of full-time undergraduates who started school in 2015-16 received student financial aid in some form. In all, 1,739 students received grants or scholarships totaling $9.03 million and 45 students took out student loans totaling more than $155,700.
Including all undergraduates, 8,878 students used grants or scholarships totaling $44.5 million. Another 1,105 took out $4.63 million in federal student loans.