The student population at College of the Siskiyous is 1,575 (all undergraduate). The number of students has decreased by 628 (28.51%) over the past decade.
The average student population over the last 11 years is 1,682 where 1,575 students are attending the school for the academic year 2024-2025.
Total enrollment fluctuated between 2016 and 2025, with 5 year-over-year increases and 4 decreases. It peaked at 2,249 students in 2017 and was lowest at 1,204 in 2023. Overall, enrollment dropped from 2,203 to 1,575 students, a net loss of 628 (28.5%).
The following table and chart illustrate the changes in student population by gender at College of the Siskiyous since 2015.
| Year | Total | Men | Women |
|---|---|---|---|
| 2015-16 | 2,203 | 1,152 | 1,051 |
| 2016-17 | 2,249 46 | 1,224 72 | 1,025 -26 |
| 2017-18 | 2,111 -138 | 1,111 -113 | 1,000 -25 |
| 2018-19 | 1,677 -434 | 765 -346 | 912 -88 |
| 2019-20 | 1,761 84 | 847 82 | 914 2 |
| 2020-21 | 1,276 -485 | 552 -295 | 724 -190 |
| 2021-22 | 1,329 53 | 656 104 | 673 -51 |
| 2022-23 | 1,204 -125 | 611 -45 | 593 -80 |
| 2023-24 | 1,430 226 | 734 123 | 696 103 |
| 2024-25 | 1,575 145 | 815 81 | 760 64 |
| Average | 1,682 | 847 | 835 |
The percentage of white students is 58.29%. The percentage was 57.15% 10 years ago and C of the Siskiyous still has a high percentage of white students. 2.22% of enrolled students is Asian and 2.73% is black students. Hispanic students comprise 19.11% of the student body.
Over the past 10 years, the racial composition has shifted. The percentage of white students increased from 57.15% to 58.29%. Asian enrollment declined from 5.99% to 2.22%. Black student enrollment decreased from 5.90% to 2.73%. Hispanic student representation expanded from 14.16% to 19.11%.
The overall racial diversity, measured by the Census Bureau Diversity Index, is 0.6129 which indicates that moderately diverse. This decreased from 0.6414 a decade ago, suggesting that racial diversity has declined.
The following table and chart illustrate the student population trends by race/ethnicity at College of the Siskiyous 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 | 132 | 130 | 312 | 12 | 1,259 | 143 |
| 2016-17 | 64 | 140 | 103 | 360 | 13 | 1,292 | 147 |
| 2017-18 | 52 | 117 | 111 | 380 | 17 | 1,178 | 156 |
| 2018-19 | 48 | 46 | 72 | 296 | 11 | 1,018 | 137 |
| 2019-20 | 54 | 58 | 87 | 330 | 12 | 947 | 129 |
| 2020-21 | 40 | 24 | 54 | 263 | 6 | 738 | 103 |
| 2021-22 | 38 | 55 | 48 | 258 | 3 | 770 | 103 |
| 2022-23 | 37 | 28 | 41 | 251 | 3 | 697 | 88 |
| 2023-24 | 40 | 40 | 39 | 258 | 9 | 867 | 108 |
| 2024-25 | 40 | 35 | 43 | 301 | 15 | 918 | 148 |
| Average | 47 | 68 | 73 | 301 | 10 | 968 | 126 |
612 students are enrolled in online degree programs exclusively for the academic year 2024-2025, which is 39% of total students. The number of online students has increased 50.00% since 2015. The following table and chart illustrate the changes in the online student population by enrolled type at College of the Siskiyous from 2015 to 2025.
| Year | Total Enrollment | Online Completely | Enrolled in Some Online Courses | Not Enrolled in Online Courses |
|---|---|---|---|---|
| 2015-16 | 2,203 | 408 | 608 | 1,187 |
| 2016-17 | 2,249 | 348 | 635 | 1,266 |
| 2017-18 | 2,111 | 353 | 627 | 1,131 |
| 2018-19 | 1,677 | 367 | 664 | 646 |
| 2019-20 | 1,761 | 403 | 667 | 691 |
| 2020-21 | 1,276 | 652 | 377 | 247 |
| 2021-22 | 1,329 | 611 | 296 | 422 |
| 2022-23 | 1,204 | 519 | 326 | 359 |
| 2023-24 | 1,430 | 526 | 366 | 538 |
| 2024-25 | 1,575 | 612 | 385 | 578 |
| Average | 1,682 | 480 | 495 | 707 |
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