The student population at California State University-Fullerton is 43,662 (38,760 undergraduate and 4,902 graduate students) . The number of students has increased by 4,714 (12.10%) over the past decade.
The average student population over the last 11 years is 40,961 where 43,662 students are attending the school for the academic year 2024-2025.
Total enrollment fluctuated between 2016 and 2025, with 6 year-over-year increases and 3 decreases. It peaked at 43,662 students in 2025 and was lowest at 38,948 in 2016. Overall, enrollment rose from 38,948 to 43,662 students, a net gain of 4,714 (12.1%).
The following table and chart illustrate the changes in student population by gender at California State University-Fullerton since 2015.
| Year | Total | Undergraduate | Graduate | ||||
|---|---|---|---|---|---|---|---|
| Total | Men | Women | Total | Men | Women | ||
| 2015-16 | 38,948 | 33,144 | 14,790 | 18,354 | 5,804 | 2,548 | 3,256 |
| 2016-17 | 40,235 1,287 | 34,576 1,432 | 15,332 542 | 19,244 890 | 5,659 -145 | 2,293 -255 | 3,366 110 |
| 2017-18 | 40,905 670 | 35,162 586 | 15,361 29 | 19,801 557 | 5,743 84 | 2,221 -72 | 3,522 156 |
| 2018-19 | 40,280 -625 | 34,860 -302 | 15,199 -162 | 19,661 -140 | 5,420 -323 | 2,031 -190 | 3,389 -133 |
| 2019-20 | 40,445 165 | 35,335 475 | 15,209 10 | 20,126 465 | 5,110 -310 | 1,917 -114 | 3,193 -196 |
| 2020-21 | 42,051 1,606 | 36,975 1,640 | 15,470 261 | 21,505 1,379 | 5,076 -34 | 1,920 3 | 3,156 -37 |
| 2021-22 | 40,738 -1,313 | 35,600 -1,375 | 14,653 -817 | 20,947 -558 | 5,138 62 | 1,892 -28 | 3,246 90 |
| 2022-23 | 40,386 -352 | 35,432 -168 | 14,920 267 | 20,512 -435 | 4,954 -184 | 1,855 -37 | 3,099 -147 |
| 2023-24 | 41,962 1,576 | 37,125 1,693 | 15,987 1,067 | 21,138 626 | 4,837 -117 | 1,835 -20 | 3,002 -97 |
| 2024-25 | 43,662 1,700 | 38,760 1,635 | 17,086 1,099 | 21,674 536 | 4,902 65 | 1,872 37 | 3,030 28 |
| Average | 40,961 | 35,697 | 15,401 | 20,296 | 5,264 | 2,038 | 3,226 |
The average number of Undergraduate students over the last 11 years is 35,697 where 38,760 students are attending the Undergraduate school for the academic year 2024-2025. The following table and chart illustrate the changes in Undergraduate enrollment by attending status and gender at California State University-Fullerton since 2015.
| Year | Total | Full-time | Part-time | ||||
|---|---|---|---|---|---|---|---|
| Total | Men | Women | Total | Men | Women | ||
| 2015-16 | 33,144 | 27,105 | 11,914 | 15,191 | 6,039 | 2,876 | 3,163 |
| 2016-17 | 34,576 | 27,994 | 12,213 | 15,781 | 6,582 | 3,119 | 3,463 |
| 2017-18 | 35,162 | 28,475 | 12,291 | 16,184 | 6,687 | 3,070 | 3,617 |
| 2018-19 | 34,860 | 27,936 | 12,066 | 15,870 | 6,924 | 3,133 | 3,791 |
| 2019-20 | 35,335 | 28,820 | 12,271 | 16,549 | 6,515 | 2,938 | 3,577 |
| 2020-21 | 36,975 | 29,721 | 12,140 | 17,581 | 7,254 | 3,330 | 3,924 |
| 2021-22 | 35,600 | 27,874 | 11,318 | 16,556 | 7,726 | 3,335 | 4,391 |
| 2022-23 | 35,432 | 27,822 | 11,554 | 16,268 | 7,610 | 3,366 | 4,244 |
| 2023-24 | 37,125 | 29,695 | 12,619 | 17,076 | 7,430 | 3,368 | 4,062 |
| 2024-25 | 38,760 | 31,722 | 13,883 | 17,839 | 7,038 | 3,203 | 3,835 |
| Average | 35,697 | 35,697 | 12,227 | 16,490 | 35,697 | 3,174 | 3,807 |
The average number of Graduate students over the last 11 years is 5,264 where 4,902 students are attending the Graduate school for the academic year 2024-2025. The following table and chart illustrate the changes in Graduate enrollment by attending status and gender at California State University-Fullerton since 2015.
| Year | Total | Full-time | Part-time | ||||
|---|---|---|---|---|---|---|---|
| Total | Men | Women | Total | Men | Women | ||
| 2015-16 | 5,804 | 2,752 | 1,133 | 1,619 | 3,052 | 1,415 | 1,637 |
| 2016-17 | 5,659 | 2,613 | 954 | 1,659 | 3,046 | 1,339 | 1,707 |
| 2017-18 | 5,743 | 2,682 | 874 | 1,808 | 3,061 | 1,347 | 1,714 |
| 2018-19 | 5,420 | 2,396 | 799 | 1,597 | 3,024 | 1,232 | 1,792 |
| 2019-20 | 5,110 | 2,359 | 772 | 1,587 | 2,751 | 1,145 | 1,606 |
| 2020-21 | 5,076 | 2,372 | 793 | 1,579 | 2,704 | 1,127 | 1,577 |
| 2021-22 | 5,138 | 2,230 | 712 | 1,518 | 2,908 | 1,180 | 1,728 |
| 2022-23 | 4,954 | 2,267 | 792 | 1,475 | 2,687 | 1,063 | 1,624 |
| 2023-24 | 4,837 | 2,253 | 788 | 1,465 | 2,584 | 1,047 | 1,537 |
| 2024-25 | 4,902 | 2,250 | 765 | 1,485 | 2,652 | 1,107 | 1,545 |
| Average | 5,264 | 5,264 | 838 | 1,579 | 5,264 | 1,200 | 1,647 |
The percentage of white students is 14.16% and the percentage of black students is 2.55% at California State University-Fullerton. 20.31% of enrolled students is Asian. Hispanic students comprise 54.26% of the student body.
Over the past 10 years, the racial composition has shifted. The percentage of white students decreased from 23.24% to 14.16%. Asian enrollment declined from 20.65% to 20.31%. Black student enrollment increased from 2.06% to 2.55%. Hispanic student representation expanded from 37.15% to 54.26%.
The overall racial diversity, measured by the Census Bureau Diversity Index, is 0.6422 which indicates that moderately diverse. This decreased from 0.7631 a decade ago, suggesting that racial diversity has declined.
The following table and chart illustrate the student population trends by race/ethnicity at California State University-Fullerton 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 | 49 | 8,042 | 802 | 14,471 | 63 | 9,052 | 1,636 |
| 2016-17 | 50 | 8,246 | 846 | 15,728 | 63 | 8,666 | 1,720 |
| 2017-18 | 49 | 8,364 | 815 | 16,653 | 66 | 8,358 | 1,708 |
| 2018-19 | 37 | 8,401 | 783 | 16,689 | 61 | 8,114 | 1,600 |
| 2019-20 | 51 | 8,249 | 808 | 17,669 | 70 | 7,870 | 1,554 |
| 2020-21 | 40 | 8,675 | 879 | 19,356 | 72 | 7,848 | 1,569 |
| 2021-22 | 28 | 8,829 | 842 | 19,192 | 73 | 7,215 | 1,527 |
| 2022-23 | 40 | 8,817 | 905 | 20,265 | 62 | 6,637 | 1,450 |
| 2023-24 | 45 | 8,795 | 1,033 | 21,930 | 65 | 6,379 | 1,504 |
| 2024-25 | 51 | 8,868 | 1,114 | 23,693 | 68 | 6,184 | 1,630 |
| Average | 44 | 8,529 | 883 | 18,565 | 66 | 7,632 | 1,590 |
3,776 students are enrolled in online degree programs exclusively for the academic year 2024-2025, which is 9% of total students. The number of online students has increased 130.38% since 2015. The following table and chart illustrate the changes in the online student population by enrolled type at California State University-Fullerton from 2015 to 2025.
| Year | Total Enrollment | Online Completely | Enrolled in Some Online Courses | Not Enrolled in Online Courses |
|---|---|---|---|---|
| 2015-16 | 38,948 | 1,639 | 9,509 | 27,800 |
| 2016-17 | 40,235 | 1,829 | 10,913 | 27,493 |
| 2017-18 | 40,905 | 2,109 | 11,848 | 26,948 |
| 2018-19 | 40,280 | 2,161 | 12,133 | 25,986 |
| 2019-20 | 40,445 | 2,286 | 13,193 | 24,966 |
| 2020-21 | 42,051 | 39,292 | 2,711 | 48 |
| 2021-22 | 40,738 | 6,814 | 25,781 | 8,143 |
| 2022-23 | 40,386 | 4,122 | 19,249 | 17,015 |
| 2023-24 | 41,962 | 3,752 | 21,199 | 17,011 |
| 2024-25 | 43,662 | 3,776 | 23,263 | 16,623 |
| Average | 40,961 | 6,778 | 14,980 | 19,203 |
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