STEM degrees are college degrees in science, technology, engineering, and mathematics. These four broad disciplines cover everything from biology and chemistry to computer science, civil engineering, and statistics. STEM graduates earn roughly double the national median salary, and the job market for these fields is growing more than twice as fast as the overall economy.
The Four Pillars of STEM
The acronym breaks down into four categories, each containing dozens of specific majors:
- Science includes biology, chemistry, physics, environmental science, and earth sciences. These programs focus on understanding natural systems through observation and experimentation.
- Technology covers computer science, information technology, cybersecurity, and data science. These majors center on building and managing digital systems.
- Engineering spans civil, mechanical, electrical, aerospace, chemical, and biomedical engineering, among others. Engineering programs train students to design and build solutions to physical and technical problems.
- Mathematics includes pure mathematics, applied mathematics, and statistics. These degrees develop the quantitative reasoning that underpins work across all STEM fields.
The U.S. Department of Homeland Security maintains an official STEM Designated Degree Program List that formally classifies which majors count as STEM. At its core, the list is built around four primary categories: engineering, biological and biomedical sciences, mathematics and statistics, and physical sciences. But it extends well beyond those traditional pillars. Programs like data science, business analytics, and even certain social science programs with heavy quantitative components have earned STEM designation in recent years.
What You Study in a STEM Program
STEM curricula share a common DNA regardless of the specific major. Coursework emphasizes hands-on experimentation, mathematical problem-solving, and technical skill development. You’ll spend time in labs, write code, build models, or analyze data sets rather than writing essays or conducting qualitative interviews. The goal is evidence-based conclusions: you learn to test a hypothesis, measure outcomes, and draw conclusions from numbers rather than opinions.
The transferable skills this builds go well beyond any single subject. STEM graduates develop technical expertise, quantitative analysis ability, and problem-solving skills focused on measurable outcomes. These skills translate across industries, which is a major reason employers outside traditional STEM fields (finance, consulting, management) actively recruit STEM graduates.
Salary and Job Growth
The economic case for STEM degrees is stark. The median annual wage for STEM occupations in 2024 was $103,580, compared to $49,500 for all occupations nationally, according to the Bureau of Labor Statistics. That’s more than a $54,000 gap.
Among specific undergraduate majors, some of the highest earners include electrical engineering (averaging $107,000 per year), aerospace engineering, computer engineering, and chemical engineering. Architectural engineering tops some rankings when factoring in both salary and low unemployment, with graduates averaging $90,000 and an unemployment rate of just 1.3%.
The job market is also expanding quickly. STEM occupations are projected to grow 10.4% between 2023 and 2033, while total employment across all fields is expected to grow just 4.0%. That faster-than-average growth means more open positions, more competition among employers for qualified candidates, and generally stronger job security for people with STEM credentials.
Degree Levels and Career Entry Points
STEM degrees exist at every level of higher education. An associate degree (two years) can qualify you for roles like IT support specialist, lab technician, or engineering technician. A bachelor’s degree (four years) is the standard entry point for most STEM careers, including software development, data analysis, and entry-level engineering positions. Many of the salary figures cited above reflect bachelor’s-level earnings.
Master’s and doctoral degrees open doors to more specialized or research-oriented roles. A master’s in data science or cybersecurity typically takes one to two years beyond undergrad and can significantly boost earning potential. Doctoral programs, common in fields like physics, biology, and mathematics, prepare graduates for academic research positions or senior roles in industry R&D. Some fields, like clinical laboratory science or certain engineering specialties, sit comfortably at the bachelor’s level, while others, like academic research or pharmacology, effectively require a graduate degree to advance.
Highest-Paying STEM Majors
Not all STEM degrees pay equally. Engineering disciplines consistently dominate the top of salary rankings. The ten most valuable undergraduate STEM majors, based on typical salary and employment rates, include architectural engineering, construction services, computer engineering, aerospace engineering, transportation sciences and technologies, electrical engineering, materials engineering, civil engineering, mechanical engineering, and chemical engineering. Electrical engineering leads the group in raw income at roughly $107,000 per year on average.
Computer science and data science don’t always top these particular lists, but they offer enormous volume of job openings and strong starting salaries, often in the $75,000 to $95,000 range for new graduates depending on location and employer. The sheer number of available positions in tech can make these majors a safer bet for students less certain about specializing early.
Who’s Earning STEM Degrees
The STEM workforce has historically skewed male and white, and while the gap is narrowing, significant disparities remain. Women account for roughly 29% of STEM workers in the federal workforce and about 26% of employed scientists overall. Among women in STEM, about 66% are white, 14.6% are Black, 9.8% are Asian, and 6.4% are Hispanic or Latina. Minority women represent only about 11% of all employed scientists. Universities and employers have expanded recruitment and scholarship programs to address these gaps, but the demographics of STEM fields still don’t reflect the broader population.
STEM Designation for International Students
For international students studying in the U.S. on F-1 visas, whether a degree carries STEM designation has major practical consequences. Students who complete a STEM-designated program can apply for a 24-month extension of their post-graduation work authorization, known as Optional Practical Training. This gives STEM graduates up to three total years of work experience in the U.S. after finishing their degree, compared to just one year for non-STEM graduates.
To qualify, your degree must come from a school accredited by a U.S. Department of Education-recognized agency, and your employer must meet specific requirements set by immigration authorities. This OPT extension is one reason international students pay close attention to whether their particular program appears on the official DHS STEM Designated Degree Program List, and it’s partly why programs like data science have sought and obtained STEM classification even when they sit outside traditional science or engineering departments.
Non-Traditional STEM Degrees
The boundaries of what counts as STEM have expanded considerably. Data science, which blends statistics, computer science, and domain expertise, is now widely recognized as a STEM field. Business analytics programs with sufficient quantitative coursework have also earned STEM designation at many universities. Some economics programs, digital forensics degrees, and industrial psychology programs qualify as well, depending on how heavily they incorporate mathematical and computational methods.
This expansion matters because STEM designation isn’t just a label. It affects eligibility for certain scholarships, federal funding, immigration benefits, and employer recruitment pipelines. If you’re choosing between two similar programs at different schools, it’s worth checking whether one carries official STEM classification and the other doesn’t, especially if the OPT extension or STEM-specific funding could affect your plans after graduation.