Quick Answer

A public health degree requires approximately 120 credit hours, with 40-50 credits in the major covering the five core areas: epidemiology, biostatistics, environmental health, health policy and management, and social and behavioral sciences. Most programs require introductory biology, a statistics sequence, research methods, a practicum placement, and a senior capstone. The biggest surprise for most students: public health is an interdisciplinary science degree with real quantitative demands, not a social justice discussion seminar.

The hidden question is whether public health is the "easy health major" — the one you pick when pre-nursing is too competitive and biology has too much chemistry. Some students do choose it for that reason, and they hit a wall in biostatistics and epidemiology. Public health programs accredited by CEPH (Council on Education for Public Health) are required to teach specific competencies in quantitative methods, and those requirements have teeth.

The Association of Schools and Programs of Public Health (ASPPH) reports that undergraduate public health programs grew from fewer than 100 to over 200 in the past decade1. That growth means the quality varies significantly. Programs accredited by CEPH follow standardized competency requirements. Unaccredited programs may skip the rigorous biostatistics and epidemiology training that makes the degree valuable to employers.

For career outcomes, see the public health degree overview. For specific job and salary data, see public health careers. This page covers exactly what the program requires.

Expert Tip

Biostatistics and epidemiology are the two most important courses in your public health degree for career outcomes, even though many students dread them. These courses teach you to analyze health data, investigate disease patterns, and evaluate evidence — skills that employers in health departments, hospitals, pharmaceutical companies, and consulting firms value more than your knowledge of health behavior theory. Engage deeply with both courses even if they are uncomfortable.

Core Coursework: What Every Public Health Major Takes

CEPH-accredited programs are structured around five foundational areas. Every public health student takes courses in all five, then specializes in one or two.

The Five Core Areas:

1. Epidemiology

  • Study design: cohort studies, case-control studies, cross-sectional studies, randomized controlled trials
  • Measures of disease frequency: incidence, prevalence, mortality rates
  • Measures of association: relative risk, odds ratios, attributable risk
  • Outbreak investigation methodology
  • Surveillance systems and disease reporting

2. Biostatistics

  • Descriptive statistics and data visualization
  • Probability and sampling distributions
  • Hypothesis testing: t-tests, chi-square, ANOVA
  • Linear and logistic regression
  • Survival analysis (in advanced courses)
  • Statistical software: SAS, R, Stata, or SPSS

3. Environmental Health Sciences

  • Air quality and respiratory health
  • Water quality and waterborne disease
  • Toxicology fundamentals
  • Occupational health and safety
  • Food safety and foodborne illness
  • Environmental policy and regulation

4. Health Policy and Management

  • U.S. healthcare system structure and financing
  • Health economics fundamentals
  • Health insurance and access to care
  • Quality improvement methods
  • Leadership and organizational management in health settings

5. Social and Behavioral Sciences

  • Health behavior theories: Health Belief Model, Social Cognitive Theory, Transtheoretical Model, Social Ecological Model
  • Health communication and health literacy
  • Cultural competency in health promotion
  • Program planning and evaluation
  • Health disparities and social determinants of health
200+
CEPH-accredited undergraduate public health programs in the United States, up from fewer than 100 a decade ago, reflecting growing student demand and institutional investment
ASPPH 2024

Additional required courses across most programs:

  • Introduction to Public Health — broad overview of the field and its career paths
  • Biology for Public Health — human biology and microbiology fundamentals (less intensive than pre-med biology but more than typical social science requirements)
  • Research Methods — study design, data collection, ethical research practices, IRB protocols
  • Health Informatics — electronic health records, health data systems, and data management
  • Practicum — supervised fieldwork at a health department, hospital, nonprofit, or research organization (typically 120-200 hours)
  • Capstone or Senior Thesis — culminating project demonstrating integration of public health competencies

BSPH vs. BA in Public Health

BSPH (Bachelor of Science in Public Health) — more science and quantitative requirements. Additional biology, chemistry, and statistics courses. Better preparation for epidemiology, biostatistics, and research-oriented careers. Stronger foundation for MPH programs.

BA in Public Health — more flexibility for liberal arts electives and double majors. Good for students combining public health with political science, sociology, or communications. Less science-intensive but may require supplemental coursework for MPH programs with strong quantitative requirements.

Important

Not all public health programs are CEPH-accredited, and the difference matters. CEPH accreditation ensures that the program covers all five core competency areas with appropriate rigor. Some unaccredited programs skip biostatistics or epidemiology courses entirely, which leaves graduates unprepared for the most marketable public health careers and may complicate MPH admission. Verify CEPH accreditation before enrolling. Check the CEPH website directly at ceph.org.

For MPH programs that require a specific undergraduate foundation, the BSPH provides the most efficient path. For students who want public health knowledge combined with a broader liberal arts education, the BA works but may require additional prerequisites for graduate school.

Common Concentrations

Epidemiology — disease investigation, surveillance, study design, and data analysis. The most research-intensive concentration and the one most directly connected to the field's core professional identity.

Community Health — health promotion, program design and evaluation, and community-based participatory research. The most people-facing concentration with the strongest connections to nonprofit and local government careers.

Environmental Health — toxicology, environmental policy, occupational health, and exposure assessment. Connects to careers in environmental agencies, occupational health departments, and corporate environmental compliance.

Health Policy and Management — healthcare systems, health economics, and organizational leadership. The concentration that leads most directly to health services management careers and hospital administration.

Global Health — international health systems, tropical disease, humanitarian response, and development. Connects to careers at international organizations, USAID, CDC Global Health Division, and international NGOs.

Biostatistics — advanced statistical methods, clinical trial design, and health data science. The most quantitative concentration and the one with the highest salary potential. Not all undergraduate programs offer this; it is more common at the MPH level.

Prerequisites and Admission Requirements

Most public health programs at public universities do not have competitive admission beyond university admission. You declare the major and begin coursework. Some programs at competitive universities require a minimum GPA (typically 2.5-3.0) to formally enter the major.

Common prerequisite courses that feed into the public health curriculum:

  • College algebra or pre-calculus (prerequisite for biostatistics)
  • Introductory biology (prerequisite for environmental health and epidemiology courses)
  • English composition (prerequisite for health communication courses)
  • Introductory psychology or sociology (prerequisite for social and behavioral health courses)
Expert Tip

If your program offers a choice between introductory statistics for social sciences and a more rigorous biostatistics sequence, take the biostatistics sequence. The social science statistics course covers the basics, but biostatistics courses teach you to work with health-specific data formats and survival analysis methods that are directly applicable to epidemiology and pharmaceutical careers. This choice matters more for your career preparation than any elective.

Skills You'll Build (and What Employers Actually Value)

Epidemiological reasoning — the ability to think about causation systematically, evaluate study designs, and identify bias. This skill transfers to any role involving evidence-based decision-making.

Statistical analysis — running and interpreting analyses using SAS, R, Stata, or SPSS. Public health programs teach applied statistics with health data, which gives you both the technical skill and the domain knowledge employers value.

Program planning and evaluation — designing health interventions, setting measurable objectives, and evaluating whether programs achieved their goals. This is the core competency for program coordinator and health educator roles.

Health data management — working with electronic health records, surveillance databases, and survey data. Understanding health data systems is increasingly valuable as the healthcare industry becomes more data-driven.

Scientific communication — writing reports, presenting findings, and translating research for non-technical audiences. Public health professionals constantly communicate complex health information to policymakers, community members, and organizational leaders.

Did You Know

The Bureau of Labor Statistics projects that epidemiologist positions will grow 7% from 2023 to 20332. Most epidemiologist positions require a master's degree, but the undergraduate foundation in epidemiology is what makes MPH programs possible and productive. Students who take epidemiology seriously during their BSPH — treating it as a core professional skill rather than a required course to survive — enter their MPH programs ahead of classmates who came from non-public-health undergraduate backgrounds.

The Practicum Requirement

Almost every CEPH-accredited program requires a practicum or field experience, typically in the junior or senior year. This involves 120-200 hours of supervised work at a public health organization.

Common practicum settings include:

  • Local or state health departments
  • Hospital community benefit or population health departments
  • Nonprofit health organizations (American Heart Association, American Cancer Society, local clinics)
  • Research laboratories at universities
  • Federal agencies (CDC, EPA, FDA — highly competitive)
  • International health organizations (for global health concentrations)

The practicum is the single most important component of your undergraduate public health education for employment purposes. It builds your professional network, gives you concrete skills to list on a resume, and often leads directly to job offers. Choose your practicum site based on your target career path, not convenience.

What Nobody Tells You About Public Health Requirements

The five core areas are non-negotiable. Unlike some majors where you can avoid uncomfortable subjects, public health requires coursework in epidemiology, biostatistics, environmental health, policy, and behavioral science regardless of your concentration. You cannot specialize in community health and skip statistics. The breadth requirement is built into accreditation standards.

Biology requirements vary significantly by program. Some BSPH programs require only one introductory biology course. Others require biology, microbiology, and human anatomy. If you are considering pre-med alongside public health, check whether your program's biology requirements overlap with medical school prerequisites or whether you need additional courses.

The practicum is where most students discover their career direction. Academic coursework teaches theory. The practicum teaches you what the daily work actually feels like. Students who thought they wanted community health discover they prefer data analysis. Students who thought they wanted epidemiology discover they enjoy program management. Use the practicum as a career exploration tool, not just a graduation requirement.

CEPH accreditation matters for MPH admission. Top MPH programs at Johns Hopkins, Harvard, Emory, UNC, and Michigan recognize CEPH-accredited undergraduate programs as providing adequate foundational training. Graduates of unaccredited programs may need to complete additional prerequisite courses before starting their MPH.

The writing requirements are constant and specific. Public health professionals write grant proposals, program reports, policy briefs, and research papers. The writing style is evidence-based, concise, and audience-specific. Every major course involves written assignments. If you dislike writing, public health will challenge you because the field communicates almost entirely through written documents.

For comparison, see nursing degree requirements for a clinically-focused health career path, and biology degree requirements for a more laboratory-intensive science degree.

FAQ

Is public health a hard major?

Introductory courses are accessible to most students. Biostatistics and epidemiology courses are genuinely challenging, involving statistical analysis, study design, and quantitative reasoning. The overall difficulty is moderate — harder than most social science majors but less intensive than nursing, engineering, or pre-med biology. The students who struggle are those who expected public health to have no math component.

How much math does a public health degree require?

At least one semester of biostatistics, and many programs require two semesters plus a research methods course. No calculus is typically required, though it may be recommended for biostatistics concentrations. The math involves applied statistics — running analyses in software and interpreting results — rather than theoretical proofs.

Can I become a doctor with a public health degree?

Yes, if you add the required science prerequisites: two semesters each of biology, chemistry, organic chemistry, physics, and biochemistry. Many BSPH programs do not cover all of these, so pre-med public health students need to plan additional coursework carefully. Medical schools value the population health perspective, and MPH-MD dual degrees are increasingly common.

What is the difference between public health and health science?

Public health focuses on population-level health through prevention, research, policy, and program design across the five core areas. Health science is a broader category that may include pre-clinical training, health administration, or allied health preparation depending on the program. Public health has a defined accreditation body (CEPH) and standardized competencies.

Do I need a master's degree after a BSPH?

Not for all career paths. Health education specialist, community health worker, environmental health technician, and program coordinator positions are accessible with a bachelor's degree. However, epidemiology, biostatistics, health management, and policy analysis positions typically require an MPH. The master's degree is the standard professional credential in public health for mid-level and leadership roles.

Is a BSPH or a BA in Public Health better?

The BSPH is stronger for students planning to pursue epidemiology, biostatistics, or research careers and for those applying to competitive MPH programs. The BA offers more flexibility for double majors and liberal arts exploration. If you are unsure, the BSPH provides a broader foundation because additional science coursework does not limit your options but missing it can.


More on this degree:

Footnotes

  1. Association of Schools and Programs of Public Health. (2024). Trends in Undergraduate Public Health Education. ASPPH. https://www.aspph.org/teach-research/

  2. U.S. Bureau of Labor Statistics. (2025). Occupational Outlook Handbook: Epidemiologists. BLS. https://www.bls.gov/ooh/life-physical-and-social-science/epidemiologists.htm

  3. Council on Education for Public Health. (2025). Accredited Schools and Programs. CEPH. https://ceph.org/about/org-info/who-we-accredit/accredited/