Enrollment Trends at Caltech

The student population at California Institute of Technology is 2,430 (987 undergraduate and 1,443 graduate students) . The number of students has increased by 175 (7.76%) over the past decade.

Class Level: The percentage of undergraduate students at Caltech is 40.62% which is decreased by 14 over last 10 years. The graduate student population increased by 189 and it has been increasing.
Gender Breakdown: In 2025, there were 150 male students for every 100 female students, down from 206 in 2015.
All students have enrolled in on-campus classes (California Institute of Technology does not offer online degree/certificate program).

School Home 2024 Student Population

Student Population Changes

The average student population over the last 11 years is 2,313 where 2,430 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 2,463 students in 2024 and was lowest at 2,233 in 2019. Overall, enrollment rose from 2,255 to 2,430 students, a net gain of 175 (7.8%).

The following table and chart illustrate the changes in student population by gender at California Institute of Technology since 2015.

Year	Total	Undergraduate			Graduate
Year	Total	Total	Men	Women	Total	Men	Women
2015-16	2,255	1,001	610	391	1,254	908	346
2016-17	2,240 -15	979 -22	579 -31	400 9	1,261 7	900 -8	361 15
2017-18	2,238 -2	961 -18	532 -47	429 29	1,277 16	891 -9	386 25
2018-19	2,233 -5	948 -13	518 -14	430 1	1,285 8	909 18	376 -10
2019-20	2,237 4	938 -10	513 -5	425 -5	1,299 14	890 -19	409 33
2020-21	2,240 3	901 -37	490 -23	411 -14	1,339 40	912 22	427 18
2021-22	2,397 157	987 86	546 56	441 30	1,410 71	941 29	469 42
2022-23	2,401 4	982 -5	537 -9	445 4	1,419 9	927 -14	492 23
2023-24	2,463 62	1,023 41	580 43	443 -2	1,440 21	925 -2	515 23
2024-25	2,430 -33	987 -36	541 -39	446 3	1,443 3	918 -7	525 10
Average	2,313	971	545	426	1,343	912	431

California Institute of Technology Enrollment Trends Chart

Undergraduate Enrollment Changes

The average number of Undergraduate students over the last 11 years is 971 where 987 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 Institute of Technology since 2015.

Year	Total	Men	Women
2015-16	1,001	1,001	610	391	0
2016-17	979	979	579	400	0
2017-18	961	961	532	429	0
2018-19	948	948	518	430	0
2019-20	938	938	513	425	0
2020-21	901	901	490	411	0
2021-22	987	987	546	441	0
2022-23	982	982	537	445	0
2023-24	1,023	1,023	580	443	0
2024-25	987	987	541	446	0
Average	971	971	545	426	971

California Institute of Technology Undergraduate Enrollment Trends Chart

Graduate Enrollment Changes

The average number of Graduate students over the last 11 years is 1,343 where 1,443 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 Institute of Technology since 2015.

Year	Total	Men	Women
2015-16	1,254	1,254	908	346	0	0
2016-17	1,261	1,260	900	360	1	1
2017-18	1,277	1,277	891	386	0	0
2018-19	1,285	1,285	909	376	0	0
2019-20	1,299	1,299	890	409	0	0
2020-21	1,339	1,339	912	427	0	0
2021-22	1,410	1,410	941	469	0	0
2022-23	1,419	1,419	927	492	0	0
2023-24	1,440	1,440	925	515	0	0
2024-25	1,443	1,443	918	525	0	0
Average	1,343	1,343	912	431	1,343	0

California Institute of Technology Graduate Enrollment Trends Chart

Enrollment by Race/Ethnicity Changes

The percentage of white students is 23.05% and the percentage of black students is 2.80% at California Institute of Technology. 22.63% of enrolled students is Asian. Hispanic students comprise 11.40% of the student body.

Over the past 10 years, the racial composition has shifted. The percentage of white students decreased from 31.75% to 23.05%. Asian enrollment declined from 26.87% to 22.63%. Black student enrollment increased from 1.15% to 2.80%. Hispanic student representation expanded from 7.63% to 11.40%.

The overall racial diversity, measured by the Census Bureau Diversity Index, is 0.8777 which indicates that highly diverse. This increased from 0.8200 a decade ago, suggesting that racial diversity has improved.

The following table and chart illustrate the student population trends by race/ethnicity at California Institute of Technology 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
Year	2015-16	5	606	26	172	0	716	73
2016-17	1	562	22	169	0	725	86
2017-18	1	554	21	169	0	728	102
2018-19	1	517	21	187	0	700	119
2019-20	2	479	24	229	1	675	124
2020-21	2	514	23	237	1	651	120
2021-22	3	514	38	321	1	662	141
2022-23	2	517	53	315	1	641	143
2023-24	3	552	59	298	1	598	156
2024-25	2	550	68	277	2	560	157
Average	2	537	36	237	1	666	122

California Institute of Technology Enrollment by Race Trends Chart

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Enrollment Trends at Caltech

Student Population Changes

Undergraduate Enrollment Changes

Graduate Enrollment Changes

Enrollment by Race/Ethnicity Changes

Distance Learning (Online Courses) Enrollment Changes

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