What is admissions.caltech.edu?

admissions.caltech.edu is the official undergraduate admissions website for Caltech (the California Institute of Technology). If you are a prospective undergraduate applicant, a parent, a school counselor, or anyone trying to understand how to apply to Caltech and what the school is like, this is the site to use. It is not a general Caltech homepage or a graduate admissions portal — it is specifically built around the undergraduate admissions process and the information prospective students need to decide whether to apply.

What the site covers

The site is organized around the questions a prospective undergraduate actually asks, rather than around Caltech's internal departments. Based on the site's own framing ("Why Caltech," "Apply," "Afford"), the main areas are:

• Why Caltech — what the school is like and who it is for. The site describes Caltech as "built for students who love STEM and are driven not only to ask big questions, but to do the work to find the answers."
• Apply — the application path for undergraduate admission.
• Afford — cost and financial aid information for prospective students.
• Connect With Us — ways to get in touch with or hear from the admissions office.

The numbers the site highlights

The admissions site leads with a small set of institutional facts that shape what attending Caltech is actually like:

These figures matter for a decision, not just as trivia. A 3:1 ratio and 982 undergraduates describe a very small, research-intensive environment — the site itself quotes an alumnus saying "A small school isn't for everyone." The 95% research participation figure tells you that undergraduate research is the norm here, not an exception reserved for a few students.

Student, faculty, and alumni stories

A large part of the site is first-person narrative rather than statistics. These stories are useful because they describe the lived experience behind the numbers. Examples the site features:

• Elin Stenmark, on doing research "where you get paid to find things out about the universe and teach other people."
• Mars Arechavala, on how a research project only fully made sense once later coursework connected the science to the work.
• Miles Jones, on the shift from high school, where "I could just understand everything by myself," to Caltech, where "you need to reach out for assistance."
• Katherine de Kleer (Assistant Professor, Geological and Planetary Sciences) and Jared Leadbetter (Professor of Environmental Microbiology), on the constant interaction among students, postdocs, and faculty.
• Mason Smith (BS '09), on the school being for people "who want opportunities to get involved and make a difference."

Read these as signals about fit. The recurring themes — heavy research involvement, needing to ask for help, close faculty contact — are the same things the statistics point to.

How to use the site

1. Start with Why Caltech to check whether the small, STEM-focused, research-heavy model matches what you want.
2. Move to Apply for the undergraduate application process.
3. Use Afford to understand cost and aid before you assume the school is out of reach.
4. Use Connect With Us if you have questions the site doesn't answer or want to engage with the admissions office directly.

What it is not

• It is not Caltech's main institutional site or its graduate admissions site — those are separate.
• It is not a third-party ranking or review site; everything here is published by Caltech's undergraduate admissions office.
• It does not, on its own, tell you your chances of admission or provide personalized advice — it gives you the official process and the school's own account of itself.

If your goal is to understand or complete an undergraduate application to Caltech, this is the authoritative starting point. If you are looking for graduate programs, research groups, or general institute information, you are on the wrong site.