The student population at Colby College is 2,412 (all undergraduate). The number of students has increased by 555 (29.89%) over the past decade.
- Gender Breakdown: In 2025, there were 95 male students for every 100 female students, up from 91 in 2015.
- All students have enrolled in on-campus classes (Colby College does not offer online degree/certificate program).
Student Population Changes
The average student population over the last 11 years is 2,107 where 2,412 students are attending the school for the academic year 2024-2025.
Total enrollment fluctuated between 2016 and 2025, with 8 year-over-year increases and 1 decrease. It peaked at 2,412 students in 2025 and was lowest at 1,857 in 2016. Overall, enrollment rose from 1,857 to 2,412 students, a net gain of 555 (29.9%).
The following table and chart illustrate the changes in student population by gender at Colby College since 2015.
Enrollment by Race/Ethnicity Changes
The percentage of white students is 54.77%. The percentage was 61.60% 10 years ago and Colby still has a high percentage of white students. 10.20% of enrolled students is Asian and 4.77% is black students. Hispanic students comprise 8.37% of the student body.
Over the past 10 years, the racial composition has shifted. The percentage of white students decreased from 61.60% to 54.77%. Asian enrollment grew from 6.19% to 10.20%. Black student enrollment increased from 2.64% to 4.77%. Hispanic student representation expanded from 6.41% to 8.37%.
The overall racial diversity, measured by the Census Bureau Diversity Index, is 0.6753 which indicates that moderately diverse. This increased from 0.6093 a decade ago, suggesting that racial diversity has improved.
The following table and chart illustrate the student population trends by race/ethnicity at Colby College over the past 11 years (2015-2025).
Distance Learning (Online Courses) Enrollment Changes
Colby College does not offer online degree/certificate programs. All Students have enrolled in on-campus programs.