How do we rank these schools? Learn more about our college ranking system.
      Note that some schools do not
      have enough data to be ranked, and these
      schools will not appear in our lists. To find information about a school not
      listed below, try our site search at the bottom of this page.
    
| Rank in Puerto Rico | Highest Enrollment | |||
|---|---|---|---|---|
| 2020 | 2015 | School Name | 2020 | 2015 | 
| 1 | 1 | Universidad Ana G. Mendez-Gurabo Campus | 15,699 | 17,287 (↓9.2%) | 
| 2 ↑ | 3 | University of Puerto Rico-Rio Piedras | 14,932 | 15,487 (↓3.6%) | 
| 3 ↑ | 6 | University of Puerto Rico-Mayaguez | 13,224 | 11,838 (↑11.7%) | 
| 4 | 4 | Universidad Ana G. Mendez-Cupey Campus | 11,596 | 13,631 (↓14.9%) | 
| 5 ↑ | 11 | National University College | 11,260 | 5,213 (↑116.0%) | 
| 6 ↓ | 5 | Universidad Ana G. Mendez-Carolina Campus | 10,330 | 13,420 (↓23.0%) | 
| 7 ↓ | 2 | Instituto de Banca y Comercio Inc | 8,295 | 16,339 (↓49.2%) | 
| 8 ↓ | 7 | Inter American University of Puerto Rico-Metro | 7,831 | 9,853 (↓20.5%) | 
| 9 ↓ | 8 | Pontifical Catholic University of Puerto Rico-Ponce | 7,136 | 8,341 (↓14.4%) | 
| 10 | 10 | Inter American University of Puerto Rico-Ponce | 4,604 | 5,821 (↓20.9%) | 
| 11 ↓ | 9 | Universidad del Sagrado Corazon | 4,469 | 5,892 (↓24.2%) | 
| 12 | 12 | Inter American University of Puerto Rico-San German | 4,450 | 5,177 (↓14.0%) | 
| 13 ↑ | 18 | MBTI Business Training Institute | 4,431 | No Change | 
| 14 | 14 | Inter American University of Puerto Rico-Bayamon | 4,293 | 4,857 (↓11.6%) | 
| 15 ↑ | 16 | Universidad Politecnica de Puerto Rico | 4,231 | 4,646 (↓8.9%) | 
| 16 ↓ | 13 | University of Puerto Rico-Bayamon | 4,190 | 5,075 (↓17.4%) | 
| 17 ↓ | 15 | Inter American University of Puerto Rico-Arecibo | 3,954 | 4,799 (↓17.6%) | 
| 18 ↓ | 17 | Inter American University of Puerto Rico-Aguadilla | 3,903 | 4,595 (↓15.1%) | 
| 19 ↑ | 21 | University of Puerto Rico-Arecibo | 3,638 | 3,759 (↓3.2%) | 
| 20 ↓ | 19 | University of Puerto Rico-Carolina | 3,392 | 3,994 (↓15.1%) | 
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