This article will not tell you whether Caltech is the right school for your family. Nobody knows that yet, not even you. But by the time you finish reading it, you will understand this piece of the puzzle—what California Institute of Technology is, using official United States government data—well enough to put it together with the other two pieces that belong to your child and your family.
What kind of school it is
Caltech is classified by the Carnegie system, which organizes the country’s universities according to what they do, among doctoral institutions with the highest research activity there is. It is a small, four-year, highly residential school: at the time of the report, at least half of its undergraduate students lived in institution-provided housing, and at least 80 out of every 100 studied full time. It also appears in the most selective admissions group recognized by this classification.
There is one detail you cannot overlook: in that same classification, at least half of the full-time-equivalent enrollment consisted of graduate students, not undergraduate students. It is a snapshot of one specific moment, not a fixed rule forever, but it tells you something real: at Caltech, graduate education carries weight. It is part of the air people breathe there.
None of these labels tells you how many out of every hundred applicants get in. You will see that later, with its own number. And no label should be the only school on your child’s list.
Where it is and what life is like
Caltech is in Pasadena, California, within Los Angeles County, and its location falls within the Los Angeles-Long Beach-Anaheim metropolitan area. That does not mean the campus is in the middle of a major city. If your child were considering living at home, the recommendation is simple and practical: drive the route yourself on a weekday, at the actual time of their classes. The time shown on the map is almost never the real time.
What type of institution it is, on paper
It is private, four years or more, and nonprofit. The highest level it reports offering is the doctorate, and the government classifies it as a degree-granting institution, primarily offering bachelor’s degrees or higher levels. It reports graduate offerings, but that does not tell you whether the exact major your child is interested in exists there or whether it connects to graduate study. That must be asked program by program.
And one thing is worth saying right away, because it will appear several times in this article: being private does not mean you should rule it out because of the sticker price, nor choose it because of it. That is the number compared across schools, not the catalog price.
What Caltech is not
Caltech does not have any of these three designations: it is not a historically Black college or university, it is not a tribal college or university, and it is not a land-grant institution. Of the 3,012 universities in this federal directory, 138 have one of the three. Caltech’s absence from that list does not say which students it serves, how many Latino students are on campus, or how your child will feel there. Nor does it say the opposite. That is learned by asking which cultural centers and student organizations exist today, and by talking with someone who is already studying there.
A small community, with a particular composition
Among Caltech undergraduates, 19 out of every 100 students reported themselves as Hispanic or Latino in the fall of 2023. They are not a majority, but neither are they rare. Compared with 941 private four-year schools with selective admissions in this same census, that proportion places it in the highest quarter of the group: three out of every four of those schools reported an equal or lower figure.
There are more men than women among undergraduates: out of every 100 students, 43 are women. And something worth noting if your child is not a typical teenager just out of high school: the percentage of students from 25 to 64 years old rounds to zero. That does not mean there is nobody that age, but it means almost nobody.
Here is a fact that matters if you live far away: fewer than half of first-time, degree-seeking students had permanent residence reported in California, the school’s state—30 out of every 100. The rest come from other states, other countries, or had no residence reported; this figure does not separate those categories. It does not directly measure distance or travel cost, but if your child would need to fly or drive a long distance to get there, that is a real expense that needs to go into the budget. Cost of attendance includes an estimate for “other expenses” that may include transportation, but it does not break it out. If it applies to your family, ask for that detail.
The real size
Caltech had 2,463 students enrolled in the official fall count. It is a medium-sized school—between 1,000 and 4,999—and compared with its peers, it falls right in the middle: neither among the large schools nor the small ones.
But here is the fact that truly should stay with you: of those 2,463, only 1,023 are undergraduates. The other 1,440 are graduate students. At this school, graduate education carries more weight than undergraduate education. If your child is starting college, the number that matters to them is not the total of 2,463. It is 1,023.
How the academic year works and what is taught
Caltech operates on a quarter system: the year is divided into three periods of approximately 12 weeks each, with the possibility of a fourth period in the summer. It is a different calendar from the semester system used by many other schools, and that matters if your child ever considers transferring: calendars do not always line up, and credit recognition between one school and another must be confirmed in writing with both institutions.
In its most recent report, Caltech indicated that it does not offer credit for life experience or AP exams, and that it does not enroll high school students in college-credit courses. It does report accepting credit for military training. None of these facts measures dual credit or other transfer policies; those must be confirmed directly.
Which majors account for most degrees
In the most recently reported year, Caltech awarded 233 bachelor’s degrees, spread across 11 academic program families. By far, the family with the most degrees was engineering: 84 of the 233, meaning 36 out of every 100. Compared with 942 selective private schools in this census, Caltech falls in the quarter with the fewest program families represented in its undergraduate detail: it is a concentrated offering, not a broad one.
With few degrees awarded in a year, the number can move substantially from one period to another. If the program your child is interested in is on that list, ask for the last three years for that specific major; do not rely on a snapshot from a single year.
The student-faculty ratio
Caltech reports 3 full-time-equivalent students for every full-time-equivalent faculty member. It is one of the lowest ratios you will find in any comparison: among 941 similar schools, it falls in the lowest quarter. But pay attention to what this does not say: a low ratio does not guarantee small classes. The number relates staff and students overall; it does not count seats in a particular classroom. If this matters to you, ask directly how many students are in first-year classes.
Structured academic opportunities
Caltech reports offering study abroad and co-curricular undergraduate research as structured academic pathways. When the time comes, it is worth asking how students access each one and how available they are for your child’s major.
Getting in: what Caltech requires and how many make it
This is where many families feel the weight of this school.
Caltech does not have open admission. Of nine admissions considerations reviewed by the government, it marks four as required: the high school record, the personal essay, letters of recommendation, and an English-proficiency examination for those to whom it applies. It also considers, although they are not required, high school grade-point average, class rank, completion of the course plan the university requires, a portfolio or competency examination, and work experience.
Put simply: collecting documents is not enough here. The essay is required, so your child has to write, and write well. The practical recommendation is to start it in the summer, not the week of the deadline. The first draft is never the one submitted. The published undergraduate application fee is $75.
The admission rate
Caltech reported 13,107 first-time applicants in the 2023 cycle and offered admission to 412. That is 3 out of every 100. On the other side were 12,695 applicants without an admission offer. Compared with 942 selective private schools in this census, Caltech is among those that admit the fewest: nine out of every ten schools in that group, or more, admitted a greater percentage.
I need to tell you this clearly: a low percentage does not mean the school is better. This number says how many places were offered compared with how many people asked for them. It says nothing about your child’s worth. Having schools on both sides of this figure on your child’s list—some highly selective, others that admit most applicants—is not a negative backup plan. It is sensible.
Those who say yes, say yes
Out of every 100 first-year students admitted in 2023, 65 ultimately enrolled. It is among the highest percentages at similar schools. But do not read it as applause: this figure counts what other families did after receiving the letter; it does not measure again how hard it was to receive one. If your child gets a yes, ask that same day when the deposit is due and whether it can be extended while you wait for other letters. The fact that most enrolled quickly in past years does not mean your child should sign in a hurry.
About the SAT and ACT
Caltech reports that it does not consider SAT or ACT scores in the admissions decision, even if they are sent. This does not say whether it uses them for scholarships, placement, or other purposes—that must be asked separately. Not requiring a test does not mean it requires nothing else: review the other considerations and confirm the current policy directly with admissions.
About transfers
Transferring out was uncommon: of the cohort that entered in 2017, only 7 students—3 out of every 100—transferred to another school without completing here. And the arrival of transfer students at Caltech was minimal: only 5 in the fall count of 2023. Compared with similar schools, departures from Caltech are on the low side: most of its peers saw a greater proportion of their students leave.
The fact that few leave does not mean those who remain complete their degree—that is another calculation, and you will see it later. And if you ever considered having your child transfer to Caltech, this number says nothing about how many courses would be recognized. That must be requested in writing, with the course list in hand, before moving anyone.
The price: what the paper says and what each family pays
At California Institute of Technology, among 26 first-time, full-time, degree-seeking students who received federal Title IV aid and whose EFC records showed family income below $30,000, the average net price was $1,667. Among 12 students from the same population with family EFC income from $48,001 to $75,000, it was $7,003; among 20 students with family EFC income above $110,000, it was $56,275. For dependent students, the band combines their parents’ income with their own.
Between the average for the lower-income band (26 students) and that for the higher-income band (20 students), there is a difference of $54,608. These are group averages, not a prediction of your family’s price. Among first-year students who received any scholarship, the average was $23,397.
Among the 937 schools of the same type and control included in this census that reported this figure with the same time coverage, this one falls in the least expensive quarter for lower-income families, with scholarships already deducted. That does not mean it is inexpensive for your family. It is a fact that matters when building the list of schools to apply to.
Because the price changes so much from one income band to another, identifying yours correctly comes first. The income bands in this profile describe first-time, full-time, degree-seeking students who received federal Title IV aid; at public institutions, they use the in-state or district rate. The overall average with scholarships, when it appears, describes first-time, full-time, degree-seeking students who received federal, state, local, or institutional scholarships or grants. The one that matters is the aid letter you receive.
How it is paid for: scholarships, loans, and what remains unknown
61 out of every 100 degree-seeking Caltech students received aid that does not need to be repaid—more than half, but not all. Among those who received it, the average for the year was $52,266. Compared with similar schools, Caltech falls in the quarter where scholarships reach proportionally fewer students.
The Pell Grant, which is federal aid specifically for students with demonstrated financial need, went to only 15 out of every 100. That means at least 46 out of every 100 received aid that was not Pell, but rather from another source—probably the institution itself.
$52,266 is real money, but it is not a price and it is not your offer. A high average among those who received aid does not tell you the size of yours. When the letter arrives, what matters is how much your family would need to pay out of pocket. Compare that number across schools, not the size of the advertised discount.
About loans
Only 4 out of every 100 Caltech undergraduate students had a federal student loan in the 2022-23 academic year—very few compared with similar schools, where nine out of every ten, or more, had a greater proportion. Among those who did borrow, the average was $6,378 that year.
Most Caltech students did not use federal loans. But this does not show how everyone else managed: it could have been scholarships, work, family savings, or another type of debt this report does not record. And that average of $6,378 is for one year only, only for federal loans in the student’s name—it does not include parent PLUS loans, bank debt, credit cards, or debt accumulated by graduation. To know that, all years would need to be added, and that number is not here.
Caltech also reports offering a tuition payment plan in installments as a way to manage costs.
Campus life, beyond classes
Caltech does have its own housing. Not all first-time students are required to live there—but that does not mean no specific program has that requirement. It also offers meal plans, although the number of meals per week varies by plan. The reported maximum housing capacity is 1,575 students. The existence of housing does not guarantee a bed for your child: request in writing the yearly rate, the application deadline, and whether a space is guaranteed or they are placed on a waiting list.
ROTC: Caltech indicates that the opportunity exists in the Army and Air Force branches. The Navy branch is not indicated. Being marked does not say whether the program is taken on this specific campus or what capacity or requirements it has—ask by name before building a plan around it.
Sports: Caltech competes in intercollegiate athletics and is affiliated with the NCAA, with reported membership in basketball, baseball, and cross-country or track. Membership belongs to the school, not your child. If they are interested, you must write directly to the coach and ask about roster space, division, and whether that sport offers a scholarship.
Format: Caltech does not offer distance education, either at the undergraduate or graduate level. Zero students took all their classes that way. If your child works or cares for someone at home, the schedule has to fit in person. This figure is from a specific year; ask whether it remains so before deciding.
Library: it operates with paid staff and exceeded the government’s reported spending threshold of $100,000. It has physical and digital materials, as well as interlibrary loan. Exceeding that threshold does not guarantee databases specific to your child’s major—that must be asked by major name.
Other reported supports: combined academic and career counseling, employment services for current students, placement services for graduates, participation in the Yellow Ribbon program, a point of contact for veterans and military personnel, and a webpage of services for people with disabilities.
What happened to those who already got in
This may be the part that gives you the most peace of mind, as long as you read it with your eyes open.
Of the cohort that entered in the fall of 2022—224 full-time students seeking bachelor’s degrees—219 met the official retention criterion: 98 out of every 100 were still enrolled or had already completed their degree one year later. It is among the highest rates at similar schools. But this number combines two different things—remaining enrolled and having already graduated—without telling you which happened to each person, or what happened to the 5 left out.
Graduation: of those who entered bachelor’s programs in 2017, 93 out of every 100—218 of 234—left with a degree within six years or less. With a four-year timeframe, the figure drops to 79 out of every 100, a difference of 14 points. Compared with similar schools, Caltech is among those that graduate the most students.
This number is high, and it is real. But it is what happened to the class of 2017, not a promise about your child. What is in your hands: that they enter with their credits in order, and that from the first semester they know who their adviser is and when courses in their major are registered for.
At eight years: of the cohort that entered between July of 2015 and June of 2016, as of August 2023, 96 out of every 100 had a Caltech degree or certificate. It is among the highest proportions at similar schools. A number like that does not predict the result for any particular person. It is worth asking about current program supports and results for more recent cohorts when the time comes to decide.
What belongs to each person
It is a school where almost everyone who gets in stays, and almost everyone who stays graduates. Neither of those facts decides for you or your child.
Your child’s job is to write that essay, build their record, decide whether this school fits what they want to study and the life they imagine living far from—or close to—home. Your job is the money: complete the FAFSA, request the aid letter in writing, and make no major decision until you have it in hand. Caltech’s job is to admit, deny, and offer aid according to its own rules.
Now you know in detail one of the three pieces you need to decide: what this university really is and offers. Put it together with what your child wants and has built, and with what your family can and is willing to pay. A plan comes from that combination, not from any number alone.
Source note: the information in this article comes from official data reported by California Institute of Technology to IPEDS (Integrated Postsecondary Education Data System) of the United States Department of Education, corresponding to different years and cycles as indicated in each section. Best College Aid does not represent California Institute of Technology or the United States government, and this article does not constitute personalized admissions advice.