The student population at College of Southern Idaho is 10,176 (all undergraduate). The number of students has increased by 2,628 (34.82%) over the past decade.
The average student population over the last 11 years is 7,797 where 10,176 students are attending the school for the academic year 2024-2025.
Total enrollment fluctuated between 2016 and 2025, with 7 year-over-year increases and 2 decreases. It peaked at 10,176 students in 2025 and was lowest at 6,876 in 2018. Overall, enrollment rose from 7,548 to 10,176 students, a net gain of 2,628 (34.8%).
The following table and chart illustrate the changes in student population by gender at College of Southern Idaho since 2015.
| Year | Total | Men | Women |
|---|---|---|---|
| 2015-16 | 7,548 | 2,809 | 4,739 |
| 2016-17 | 7,053 -495 | 2,708 -101 | 4,345 -394 |
| 2017-18 | 6,876 -177 | 2,595 -113 | 4,281 -64 |
| 2018-19 | 6,906 30 | 2,497 -98 | 4,409 128 |
| 2019-20 | 7,288 382 | 2,693 196 | 4,595 186 |
| 2020-21 | 7,321 33 | 2,717 24 | 4,604 9 |
| 2021-22 | 7,927 606 | 2,942 225 | 4,985 381 |
| 2022-23 | 8,096 169 | 3,089 147 | 5,007 22 |
| 2023-24 | 8,775 679 | 3,452 363 | 5,323 316 |
| 2024-25 | 10,176 1,401 | 4,043 591 | 6,133 810 |
| Average | 7,797 | 2,955 | 4,842 |
The percentage of white students is 44.90% and the percentage of black students is 0.99% at College of Southern Idaho. 0.85% of enrolled students is Asian. Hispanic students comprise 23.06% of the student body.
Over the past 10 years, the racial composition has shifted. The percentage of white students decreased from 71.82% to 44.90%. Asian enrollment declined from 0.95% to 0.85%. Black student enrollment increased from 0.76% to 0.99%. Hispanic student representation expanded from 19.34% to 23.06%.
The overall racial diversity, measured by the Census Bureau Diversity Index, is 0.7448 which indicates that quite diverse. This increased from 0.4460 a decade ago, suggesting that racial diversity has improved.
The following table and chart illustrate the student population trends by race/ethnicity at College of Southern Idaho over the past 11 years (2015-2025).
| Year | American Indian or Native American | Asian | Black | Hispanic | Native Hawaiian or Other Pacific Islander | White | Two or More Races |
|---|---|---|---|---|---|---|---|
| 2015-16 | 56 | 72 | 57 | 1,460 | 94 | 5,421 | 147 |
| 2016-17 | 61 | 80 | 59 | 1,393 | 205 | 4,855 | 122 |
| 2017-18 | 75 | 112 | 63 | 1,502 | 17 | 4,484 | 120 |
| 2018-19 | 50 | 105 | 71 | 1,504 | 23 | 4,580 | 114 |
| 2019-20 | 42 | 84 | 83 | 1,752 | 27 | 4,718 | 124 |
| 2020-21 | 35 | 73 | 80 | 1,647 | 14 | 4,748 | 147 |
| 2021-22 | 36 | 73 | 75 | 1,673 | 24 | 5,192 | 161 |
| 2022-23 | 40 | 83 | 92 | 1,785 | 18 | 5,392 | 198 |
| 2023-24 | 42 | 79 | 84 | 1,896 | 24 | 5,943 | 241 |
| 2024-25 | 49 | 87 | 101 | 2,347 | 25 | 4,569 | 130 |
| Average | 49 | 85 | 77 | 1,696 | 47 | 4,990 | 150 |
1,879 students are enrolled in online degree programs exclusively for the academic year 2024-2025, which is 19% of total students. The number of online students has increased 102.48% since 2015. The following table and chart illustrate the changes in the online student population by enrolled type at College of Southern Idaho from 2015 to 2025.
| Year | Total Enrollment | Online Completely | Enrolled in Some Online Courses | Not Enrolled in Online Courses |
|---|---|---|---|---|
| 2015-16 | 7,548 | 928 | 1,595 | 5,025 |
| 2016-17 | 7,053 | 865 | 1,528 | 4,660 |
| 2017-18 | 6,876 | 632 | 1,049 | 5,195 |
| 2018-19 | 6,906 | 982 | 1,278 | 4,646 |
| 2019-20 | 7,288 | 897 | 1,324 | 5,067 |
| 2020-21 | 7,321 | 1,314 | 1,694 | 4,313 |
| 2021-22 | 7,927 | 1,349 | 1,732 | 4,846 |
| 2022-23 | 8,096 | 1,475 | 1,685 | 4,936 |
| 2023-24 | 8,775 | 1,603 | 1,694 | 5,478 |
| 2024-25 | 10,176 | 1,879 | 2,018 | 6,279 |
| Average | 7,797 | 1,192 | 1,560 | 5,045 |
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