Which WashU School Fits Your Major: Arts and Sciences, Engineering, Olin, Sam Fox, or Beyond?

WashU undergraduate students apply to a specific school, not to the university at large. The structure matters more than international families often realize on a first visit. The College of Arts and Sciences, the McKelvey School of Engineering, the Olin Business School (undergraduate), the Sam Fox School of Design and Visual Arts, and the Brown School undergraduate programs (verify current structure) each have their own admissions criteria, academic culture, advising patterns, and student rhythms. A student whose interests align with one school may be a stronger applicant — and a happier undergraduate — than they would be in another. Choosing the right entry point is one of the most consequential pre-application decisions a WashU-bound student makes.

WashU academic fit route

This article walks the five schools, what kinds of students each fits, the visit-day questions that help families compare, and how to think about switching schools, double-majoring, and combining interests. Read it alongside the WashU campus visit and admissions guide for the visit logistics, the St. Louis campus visit landmarks article for the campus walk pattern, the Saint Louis University campus visit guide for the SLU comparison, and the St. Louis campus tour questions article for practical question phrasing. The St. Louis study-travel overview and the St. Louis university city map give the wider city frame.

Why School Fit Matters More Than University Fit

International applicants often think about U.S. universities in two layers: which schools match the student's stats, and which schools have the desired major. At WashU, the school structure adds a third layer. The same major can appear in different schools with different curricular structures, advising patterns, and admit profiles. Architecture is in Sam Fox; civil engineering is in McKelvey; environmental policy might appear in Arts and Sciences. Computer science exists in McKelvey Engineering with a specific applied orientation; computational approaches to data science can also appear in Arts and Sciences departments with a different feel. Verify current major locations on the WashU Undergraduate Admissions site during planning.

The practical implication: a student who applies to the wrong school inside WashU faces both a weaker admissions case (because the school's review committee evaluates against the school's expectations) and, if admitted, an experience that does not match their actual interests. Internal transfer between schools is possible but the rules and feasibility vary by school and year. Choosing the right school at the application stage is the cheapest correction.

College of Arts & Sciences

The College of Arts & Sciences is WashU's largest undergraduate school and holds the broadest curricular range. Departments include humanities (English, history, philosophy, comparative literature, classics, religious studies), social sciences (economics, political science, psychology, sociology, anthropology, international and area studies), natural sciences (biology, chemistry, physics, earth and planetary sciences, astronomy), mathematics, and a number of interdisciplinary programs (American culture studies, environmental studies, global studies, urban studies — verify current program names). The college also houses many of the foundational courses for pre-health students, pre-law students, and students pursuing interdisciplinary paths.

The Arts and Sciences feel is academically broad and curricular flexibility-friendly. Students often take coursework across multiple departments before declaring a major, and double-majoring within Arts and Sciences is common. The advising structure pairs students with departmental advisors after declaring a major and with college-level advising before that. Class sizes range from large introductory lectures in popular departments to small seminars in upper-level courses and specialized fields.

Arts and Sciences fits the student who:

Wants curricular flexibility across humanities, social sciences, and natural sciences.
Is pre-health, pre-law, or otherwise heading toward a graduate or professional school.
Likes the idea of double-majoring across departments (history and economics, biology and philosophy, psychology and computer science via Arts and Sciences offerings).
Wants research experience in laboratory sciences, social-science empirical research, or humanities research.
Is not yet sure of the exact major and wants room to explore before committing.

Arts and Sciences may be less fit for the student who:

Wants a specifically business, engineering, or design entry point with that school's advising culture from day one.
Is targeting a specific professional credential (architecture license, business analytics certification) that lives outside Arts and Sciences.

A visit-day walk through the Arts and Sciences quad, into a couple of departmental buildings, and into the Olin Library for a few minutes gives a useful sense of the academic rhythm.

McKelvey School of Engineering

The McKelvey School of Engineering houses WashU's engineering programs. Departments include biomedical engineering, chemical engineering, computer science, computer engineering, electrical and systems engineering, mechanical engineering and materials science, and applied mathematics and statistics. Verify current departments and program names during planning. The school has a strong project culture, with team-based design experiences, undergraduate research opportunities, and industry connections through the broader St. Louis engineering and biomedical research ecosystem.

The McKelvey feel is project-oriented and lab-intensive. Engineering students take a substantial core of mathematics, physics, and foundational engineering coursework alongside their specific department's coursework. Team project facilities and student engineering organizations (formula racing, robotics, biomedical design teams) provide a hands-on culture that complements the academic coursework. Class sizes in engineering tend to be smaller than the larger Arts and Sciences lectures, with substantial faculty contact in upper-level courses.

McKelvey fits the student who:

Has a clear engineering or computer science interest and wants to start coursework in the discipline from the first year.
Likes hands-on problem-solving, lab work, and team projects.
Wants undergraduate research opportunities in engineering or computer science.
Is interested in biomedical engineering specifically and wants proximity to the WashU Medical Campus and Barnes-Jewish Hospital for clinical research connections.
Sees engineering as a path to industry, graduate school, medical school (biomedical engineering as a pre-med path), or entrepreneurship.

McKelvey may be less fit for the student who:

Is unsure between engineering and other quantitative paths (economics, applied mathematics in Arts and Sciences, business analytics in Olin).
Wants more curricular flexibility across non-technical fields.

A visit-day walk through McKelvey's project lab spaces (when open to visitors), the engineering quad area, and into a foundational engineering classroom (if accessible during open-house events) gives a useful sense of the project culture.

Olin Business School (Undergraduate)

The Olin Business School houses WashU's undergraduate business programs. Programs include business analytics, economics and strategy, entrepreneurship, finance, marketing, accounting, supply-chain operations, and the bachelor of science in business administration (BSBA) with various concentrations. Verify current programs and concentrations during planning. Olin is a relatively small undergraduate program inside a larger business-school ecosystem that includes WashU's MBA and specialized master's programs.

The Olin feel is case-method and analytics-oriented. Students often work in teams on business case studies, with faculty contact that is substantial relative to many large public-business-school programs. The undergraduate business community has a distinct identity inside WashU's broader undergraduate population. Olin students often pursue double-majors or minors across Arts and Sciences departments (economics, computer science, applied mathematics) to deepen specific quantitative or analytical interests.

Olin fits the student who:

Has a clear interest in business, finance, marketing, entrepreneurship, or business analytics at the undergraduate level.
Wants case-method classroom experience and team-based problem-solving in a business context.
Sees undergraduate business as a path to industry, consulting, finance, entrepreneurship, or eventually graduate business or law school.
Is comfortable in a competitive, achievement-oriented academic culture.

Olin may be less fit for the student who:

Is interested in business themes but prefers a humanities or social-science academic frame (economics in Arts and Sciences, social-policy approaches in Arts and Sciences, or sociology of organizations).
Wants to delay business specialization until later in college.

A visit-day Olin case-method classroom visit, a walk through the Olin building, and a conversation with a current Olin student gives a useful sense of the academic rhythm.

Sam Fox School of Design and Visual Arts

The Sam Fox School of Design and Visual Arts houses WashU's architecture, fine arts, and design programs. The school includes the College of Architecture (with the Bachelor of Science in Architecture as the undergraduate pre-professional degree), the College of Art (with programs in fine arts, communication design, and related fields), and the Mildred Lane Kemper Art Museum. Sam Fox is portfolio-intensive: prospective applicants in architecture, fine arts, and design submit a portfolio as part of the application. Verify the current portfolio review process and submission requirements during planning.

The Sam Fox feel is studio-based and craft-oriented. Architecture students work in studio environments with iterative critique; fine arts and design students develop bodies of work through coursework, studio time, and visiting-artist programs. Faculty include practicing architects, designers, and artists alongside academic faculty. The Kemper Art Museum and the Steinberg Hall gallery provide ongoing exhibitions of significant contemporary work.

Sam Fox fits the student who:

Has a serious commitment to architecture, fine arts, or design at the undergraduate level.
Has been building a portfolio in high school or independent study.
Wants studio-based learning with regular critique and iterative work.
Sees the connection between studio practice and research / writing / theoretical framing in art and architecture.
Wants access to the Kemper Art Museum and the broader contemporary art ecosystem as part of undergraduate study.

Sam Fox may be less fit for the student who:

Has artistic interest but is not ready to commit to a studio-intensive program.
Wants to explore art history without studio practice — Arts and Sciences offers art history as an alternative path.

A visit-day Sam Fox studio visit (during open studio events), a walk through the Kemper Art Museum, and a conversation with a current Sam Fox student gives the clearest picture.

Brown School Undergraduate Programs

The Brown School — formally the Brown School of Social Work, Public Health, and Social Policy — is primarily a graduate school. Undergraduate programs at the Brown School have evolved over recent years; verify the current undergraduate offerings (which may include public health undergraduate majors or related programs) on the WashU admissions site during planning. The school is known for its applied research and policy work, with strong connections to St. Louis community organizations, the WashU Medical Campus public health work, and broader social-policy research.

If the current structure includes undergraduate programs, the Brown School fits the student interested in public health, social work, or social policy at the undergraduate level, with an applied and research-oriented academic frame. Verify the current program list and academic structure before assuming any specific path.

Interdisciplinary and Pre-Professional Paths

Several pre-professional and interdisciplinary paths cross WashU's school boundaries.

Pre-health. Students from any school can pursue pre-health requirements. Arts and Sciences (biology, chemistry, biochemistry, neuroscience) is the most common entry point. McKelvey (biomedical engineering) is also a viable path with the added technical depth. Olin (with a strong science-coursework load) is less common but possible. The WashU pre-health advising office serves students across schools. The WashU Medical Campus connection makes shadowing, research, and clinical exposure unusually accessible.

Pre-law. Students from any school can pursue pre-law. Arts and Sciences (political science, philosophy, history, economics) is the most common entry point, but no specific major is required. Olin students sometimes combine business undergraduate degrees with later law-school applications.

Design + Business. Students sometimes combine Sam Fox programs (communication design, architecture) with Olin coursework or minors. Verify current cross-school enrollment and minor structures.

Engineering + Entrepreneurship. McKelvey students sometimes combine engineering majors with Olin coursework or minors in entrepreneurship and business analytics.

Interdisciplinary majors. Arts and Sciences hosts a number of interdisciplinary programs that draw across departments — environmental studies, urban studies, American culture studies, philosophy-neuroscience-psychology, computer science with concentrations in fields like data analysis or computational biology. Verify current program names and structures during planning.

Switching Schools, Double Majoring, and Minors

Internal transfer between WashU undergraduate schools is possible but the rules and feasibility vary by school. Some transitions are relatively common (Arts and Sciences to Olin Business with strong GPA and prerequisite coursework, for example); some are more restrictive (transferring into McKelvey Engineering from another school after the first year requires specific coursework and approval). Ask the admissions office during the visit how internal transfer typically works for the schools you are considering.

Double-majoring within Arts and Sciences is common. Double-majoring across schools (Arts and Sciences plus Olin, Arts and Sciences plus McKelvey, McKelvey plus Olin) requires careful course planning and is feasible for many students but not all combinations are equally manageable. Minors are widely available and easier to combine across schools than full double majors.

These rules evolve. The current academic policies on transfers, double majors, and minors are documented on the WashU Office of the Registrar and on each school's academic-policies page. Verify before committing to a specific cross-school plan.

Visit-Day Questions for Each School

A useful visit-day conversation with a student tour guide or with current students includes questions specifically about the target school. Sample questions:

Arts and Sciences questions: "What does declaring a major actually look like — when does it happen, and how do students who switch majors handle that?" "How do students get into research labs as freshmen or sophomores?" "What is the pre-health advising structure like in practice?"

McKelvey Engineering questions: "What is a typical first-year engineering schedule like?" "How early can engineering students get into team project labs?" "How do biomedical engineering students access the WashU Medical Campus for clinical exposure?"

Olin Business questions: "What does a case-method classroom feel like as a freshman?" "How do Olin undergrads use the broader Olin MBA community — speakers, mentorship, networking?" "What does recruiting look like for Olin undergrads in their junior year?"

Sam Fox questions: "What is the studio culture like — how much time per week do students spend in studio?" "How do architecture students balance studio with non-studio coursework?" "How does the Kemper Art Museum factor into the undergraduate experience?"

General cross-school questions: "What does internal transfer between schools look like in practice?" "How do students who realize they applied to the wrong school typically handle it?" "What does double-majoring across schools require?"

The St. Louis campus tour questions article covers practical English phrasing for these conversations.

Honest Framing

Choosing the right WashU school is one of the highest-leverage decisions a prospective applicant can make before submitting an application. The differences in academic culture, advising structure, and student community across the five schools are significant — and the differences in admissions evaluation criteria are also significant. A student who walks into a WashU visit with a clear sense of which school fits, who spends time during the visit inside that school's space, and who asks the school-specific questions during the official tour will produce both a stronger application and a clearer sense of whether WashU is actually the right place. The university's school structure rewards intentional fit-matching; a generic "I want WashU" application is harder to write well than a specific "I want McKelvey biomedical engineering because of the medical campus connection" application. A serious campus visit that includes the target school's space, the Kemper, the Forest Park edge, and one student conversation produces the clearest picture of where the student belongs.