The average graduation rate over the past 10 years (2015-2025) is 80.40% where the last year rate was 83%.The average retention rate of the last 11 years is 91.60% for full-time students and 66.00% for part-time students. Judging by its graduation rate and retention rate, many students at Purdue continue to enrolled each semester and complete their studies in time. Graduation Rate ChangesThe average graduation rate of the last 11 years is 80.40% where the current academic year rate is 83%. The following table and chart show the changes of graduation rate at Purdue University-Main Campus over the past 10 years (2015-2025). Trends Table Interactive Chart Downloadable Chart YearTotalMenWomen 2015-16 75%72%78%2016-17 76%74%80%2017-18 78%76%81%2018-19 81%78%84%2019-20 81%79%84%2020-21 82%81%84%2021-22 82%81%84%2022-23 83%81%84%2023-24 83%80%86%2024-25 83%81%85%Average80.40%78.30%83.00% Retention Rate ChangesThe average retention rate of the last 11 years is 91.60% for full-time students and 66.00% for part-time students. The following table shows the changes of retention rate at Purdue from 2015 to 2025. Trends Table Interactive Chart YearFull-timePart-time2015-1692%67%2016-1791%79%2017-1891%47%2018-1992%76%2019-2091%74%2020-2193%70%2021-2291%75%2022-2390%45%2023-2492%69%2024-2593%58%Average91.60%66.00% Student to Faculty Ratio ChangesThe average student to faculty ratio over the last 11 years is 13.20 to 1 where the current academic year ratio is 14 to 1. The following table and chart illustrate the change of student to faculty ratio at Purdue University-Main Campus since 2025. Trends Table Interactive Chart YearStudent to Faculty Ratio 2015-1612:12016-1712:12017-1813:12018-1913:12019-2013:12020-2113:12021-2214:12022-2314:12023-2414:12024-2514:1Average13.20:1 Ratings & Review R Robert G. Watts ---- Bob (Alum) January 25, 2026 I studied engineering at Tulane, MIT, and Purdue. Phd in 1965. Purdue isn. the best in the World It was a great experience. Robert G. Watts ---- Bob strongly recommends the school.