A public health course is a program of study focused on protecting and improving the health of entire populations rather than treating individual patients. These programs teach you how to analyze health data, design prevention programs, shape health policy, and address the social and environmental factors that make communities sick. Public health courses exist at every level, from undergraduate degrees to doctoral programs, with the Master of Public Health (MPH) being the most common graduate credential in the field.
What Public Health Courses Actually Cover
Public health education is built around a set of core disciplines. Historically, accredited programs organized their curricula around five pillars: biostatistics, epidemiology, environmental health, health policy and management, and social and behavioral sciences. In 2016, the accrediting body for public health programs shifted to a competency-based framework, giving schools more flexibility in how they teach these subjects. Still, the traditional courses remain dominant. About 82% of programs require a standalone biostatistics course, 81% require epidemiology, 69% require environmental health, and 62% require social and behavioral health.
In practical terms, here’s what those subjects look like in the classroom:
- Biostatistics and quantitative methods: You learn to analyze health data, interpret trends, and evaluate whether an intervention actually works. This is the mathematical backbone of the field, and it’s required in nearly every program.
- Epidemiology: The study of how diseases spread through populations, what causes them, and how to track outbreaks. You learn to design studies and draw conclusions about risk factors.
- Health policy and law: Covers the legal and healthcare systems that shape public health outcomes. Programs often use a social justice lens, teaching students that improving health requires understanding the structural factors, like poverty and discrimination, that create health disparities in the first place.
- Environmental health: Focuses on how physical environments, from air quality to water contamination to workplace hazards, affect human health.
- Social and behavioral sciences: Examines why people make the health choices they do and how community-level and societal-level factors influence behavior.
- Leadership and management: Teaches teamwork, strategic planning, organizational skills, and how to run public health programs from design through evaluation.
Beyond these core courses, you develop both technical and interpersonal skills. On the technical side, that means interpreting quantitative and qualitative data, implementing strategic plans, and designing evidence-based programs. On the interpersonal side, you practice consensus building, negotiation, conflict resolution, and learning how to engage communities in creating health programs that reflect their actual needs and cultures.
Specializations Within the Degree
Most graduate programs let you choose a concentration after completing the core curriculum. The options vary by school, but common specializations include:
- Epidemiology: Deep focus on how individual, social, and structural factors shape population health
- Biostatistics: Advanced statistical methods applied to clinical, biomedical, and population data
- Environmental public health: Sustainable, equitable solutions to environmental challenges
- Global health: Health equity and social justice across international contexts
- Public health policy: Influencing policy and improving healthcare delivery systems
- Public health nutrition: Diet-related health problems and the social, economic, and environmental factors behind malnutrition
- Community health science: Developing programs that improve health and reduce inequities among diverse populations
- Social and behavioral sciences: Tackling health equity challenges at the behavioral, community, and societal levels
Your choice of concentration shapes which electives you take, what kind of fieldwork you do, and ultimately what career path you’re best prepared for.
Undergraduate vs. Graduate Programs
Public health courses are available at both levels, but they differ in depth and career positioning. At the undergraduate level, you can pursue a Bachelor of Arts or Bachelor of Science with a public health major, or a more specialized Bachelor of Public Health (BPH) or Bachelor of Science in Public Health (BSPH). The BPH and BSPH programs mirror graduate-level content but at an introductory scope, and they provide roughly 47% more public health coursework than a general BA or BS with a public health major.
The MPH is the standard professional graduate degree. Accredited MPH programs require at least 42 credit hours and go considerably deeper into research methods, data analysis, and applied practice. An undergraduate degree can qualify you for entry-level positions, but the MPH opens doors to mid-level and leadership roles, and certain government positions specifically require it.
The Fieldwork Component
Public health programs don’t stay in the classroom. Most require a practicum or applied practice experience where you work with a real organization on real problems. At the University of Michigan, for example, some concentrations require a 10-week full-time placement, while others set a minimum of 252 internship hours. If you split your time across multiple placements, each one typically needs to be at least 84 hours.
During your practicum, you produce tangible deliverables for your partner organization, things like program evaluations, data analyses, policy briefs, or community health assessments. These products need to demonstrate at least five distinct competencies, so the experience is structured to prove you can apply what you learned in coursework to actual public health challenges. This is also where many students make the professional connections that lead to their first job after graduation.
Getting Into a Public Health Program
Graduate programs in public health generally require a bachelor’s degree from an accredited institution with a GPA of 3.0 or higher, though admitted students typically have GPAs above that minimum. Your undergraduate major doesn’t need to be in a health-related field. Programs accept students from backgrounds in biology, sociology, political science, economics, engineering, and many other disciplines.
Many programs have dropped the GRE requirement in recent years. Admissions committees look at the full picture: grades, recommendation letters, personal essays, prior training, and professional experience. Because public health relies heavily on data, applicants are encouraged to show evidence of quantitative ability, whether through coursework in statistics or math, or through applied skills listed on a resume.
Why Accreditation Matters
The Council on Education for Public Health (CEPH) is the body that accredits public health programs in the United States. Accreditation means a program meets standards for educational quality, faculty qualifications, and adequate resources. For you as a student, this has concrete implications: graduating from a CEPH-accredited program is required for positions with the U.S. Public Health Service, the U.S. military, and many government agencies. It also opens doors to professional certifications and certain funding opportunities that are only available to graduates of accredited programs.
Career Paths and Salary Expectations
A public health degree leads to a surprisingly wide range of careers across government agencies, nonprofits, hospitals, private companies, consulting firms, and research institutions. The field isn’t limited to one type of work. Graduates end up in roles spanning data science, policy advocacy, environmental safety, program management, nutrition counseling, and health consulting.
Some of the more common career paths and their median salaries:
- Community health worker: $52,000 per year
- Health educator: $68,000 per year
- Epidemiologist: $84,000 per year
- Public health analyst: $105,000 per year
- Healthcare policy advisor: $117,000 per year
- Medical and health services manager: $117,960 per year
For MPH graduates specifically, entry-level roles like research assistant, program coordinator, or junior epidemiologist typically pay in the $60,000 to $75,000 range. By the mid-career stage, roughly five to ten years in, salaries often climb to $80,000 to $110,000 or higher. Less obvious career options include environmental consultant, data scientist, urban planner, genetic counselor, diversity and equity consultant, and clinical strategy consultant. The breadth of the degree means your specific combination of concentration, fieldwork experience, and prior background shapes where you land.