What it is
Public health is the science of protecting and improving the health of communities and populations — through prevention, policy, epidemiology, and health promotion — rather than treating one patient at a time. It rose sharply in visibility and importance after recent global health events.
What you'll study
The flagship credential is the MPH:
- UndergraduatePublic health, biology, statistics, and social sciences
- Master of Public Health (MPH)Epidemiology, biostatistics, health policy, environmental & behavioral health
- Concentration + practicumA focus area plus supervised field experience
Concentrations & focus areas
- EpidemiologyDisease patterns
- BiostatisticsHealth data
- Health Policy / ManagementSystems & policy
- Environmental HealthEnvironment & health
- Global HealthInternational
- Health Education / BehaviorPromotion
Skills you'll build
- Data analysisHealth statistics
- Program designPrevention programs
- Policy analysisEvaluating options
- CommunicationPublic messaging
- Systems thinkingPopulation health
Careers & job titles
- EpidemiologistDisease investigation (~$81,390)
- Health educator / promotionCommunity health
- Policy / program analystGovernment & nonprofits
- Public-health officialAgencies
- Health-services managerAdministration (~$117,960)
- Global health specialistInternational
Job outlook & demand
Demand for public-health professionals is growing with heightened attention to prevention, health equity, and preparedness. Epidemiologists and health-services managers have solid outlooks across agencies, hospitals, nonprofits, and research.
Pay: median, range & trajectory
Per the U.S. Bureau of Labor Statistics, epidemiologists earn about $81,390, while medical & health services managers earn ~$117,960. Pay varies by role, sector, and degree; the MPH is the standard professional credential.
Degree levels it's offered at
Offered across these levels — click a level to learn about it:
A bachelor's starts some roles; the Master of Public Health (MPH) is the flagship professional degree; a doctorate (PhD/DrPH) leads research and senior leadership.
Is it right for you?
You might thrive here if you care about communities and prevention, like data and policy, and want mission-driven work with real-world impact.
Edge: pair public health with data/biostatistics or health-management skills — those concentrations lead to the strongest, best-paid roles (epidemiology, health administration).
Explore further
Keep exploring:
Key facts
- FocusPopulation & community health, prevention
- Flagship degreeMaster of Public Health (MPH)
- StudyEpidemiology, biostatistics, policy, environmental health
- CareersEpidemiologist, health educator, policy analyst, admin
- Pay~$81,390 (epidemiologists) / ~$117,960 (admin), BLS
Where to learn more
Authoritative sources for careers and pay: