The Most Popular College Majors: A Complete Guide

Choosing a major is one of the first big decisions a college student makes, and it's rarely made in a vacuum. Job prospects, salary expectations, family influence, and just plain curiosity all play a role — and so does what everyone else seems to be studying. Here's a look at the majors drawing the biggest crowds right now, and what's driving students toward them.

Topics Covered: College Majors, Career Planning, Higher Education Trends

Business Still Sits at the Top

Business has been the single most popular major in the United States since the mid-1970s, and that hasn't changed. Roughly 17.5% of undergraduates at four-year institutions currently declare a business major, covering everything from finance and marketing to management, entrepreneurship, and supply chain operations.

The appeal is straightforward: business degrees are offered almost everywhere, the coursework applies to a wide range of industries, and the earning potential has stayed consistently strong. Business and financial operations roles pay well above the median for all occupations, which keeps the major attractive across generations of students who are thinking about return on investment as much as interest.

Health Professions Keep Climbing

Health-related majors — nursing, public health, health sciences, and related clinical fields — make up the second-largest share of undergraduate enrollment, at around 11% of four-year students.

A few forces are behind the growth: an aging population that needs more healthcare workers, pandemic-era interest in medical careers that never fully faded, and the kind of job stability that's hard to find elsewhere. Nursing in particular tends to come with low unemployment and strong demand, which makes it an easy sell to students and parents alike.

Computer Science and Tech Fields Are Growing the Fastest

No category has grown faster over the past decade than computer and information sciences. Degrees conferred in this area more than doubled between the early 2010s and early 2020s, driven by tech industry demand and the salary premium that comes with a CS degree.

That growth hasn't slowed — it's just splintered. What used to be one broad "computer science" track has spun off into more specialized majors:

• Data science and analytics, now often a standalone major rather than a subfield of math or CS
• Cybersecurity, growing alongside rising demand for security professionals
• Artificial intelligence, an entirely new major at some schools. At MIT, the newly created AI major quickly became the university's second-largest undergraduate program, and other schools are standing up similar tracks with enrollment expected to climb steadily over the next several years.

Despite the growth, computer science remains a case where popularity and pay overlap — it's one of the few fields that's both heavily enrolled and well compensated, rather than students having to choose one or the other.

Engineering Holds Steady

Engineering majors — mechanical, electrical, civil, and industrial among them — have seen moderate but consistent growth, tracking closely with infrastructure investment and continued demand from the tech sector. Civil engineering in particular is popular despite paying somewhat less than other engineering specialties, largely because of accessibility: it's offered at a huge number of schools and leads fairly directly into stable, in-demand careers.

Why Students Gravitate Toward the Same Majors

A few patterns explain why enrollment clusters around a relatively small number of fields:

• Perceived job stability. Majors tied to fields with low unemployment and strong projected demand — nursing and computer science are frequent examples — tend to attract more students simply because the payoff feels less uncertain.
• Accessibility. Popular majors are offered at more schools, which gives students more options for where to study, even if it also means more competition for scholarships within that field.
• Cultural and economic trends. Majors tend to track the world around them — computer science alongside the tech boom, public health alongside greater awareness of healthcare systems generally.
• Career and earnings motivation. Surveys of college-bound students consistently point to better career opportunities, specialized skills, and higher earning potential as top reasons for pursuing a degree in the first place.

A Word on Changing Your Mind

It's worth remembering that a declared major isn't a permanent decision. Roughly a third of college students change their major at least once within their first three years of enrollment, often as they get more exposure to a field and figure out what actually fits their interests and strengths. Choosing a "popular" major isn't a requirement for success, and switching paths partway through is common enough to be the norm rather than the exception.

Common Questions

What is the most popular college major in the US? Business, by a wide margin — it's held the top spot since the mid-1970s and currently accounts for roughly 17.5% of four-year undergraduate enrollment.

What's the fastest-growing major right now? Computer and information sciences, including newer offshoots like data science, cybersecurity, and AI-specific majors, which are among the newest programs to appear at major universities.

Is it normal to change majors? Yes — about a third of students change their major at least once within three years of starting college, usually to better match their interests or abilities.