Epidemiologist

What epidemiologists make

The national median is $87,220 a year, the bottom tenth earn $61,270 or less and the top tenth $138,800 or more, in the 2025 federal wage survey.

First job after the master's

An analyst or epidemiologist at a state or local health department usually starts in this lower part of the range. Public health salaries are set by government pay scales, so there is little room to negotiate, but the benefits and pension are real and the work starts on day one rather than after years of apprenticeship.

The top quarter

Drug companies hire epidemiologists to study how medicines behave once real people take them. Senior federal scientists and university faculty with grant funding work in this field too.

What it costs to get there

File the FAFSA (Free Application for Federal Student Aid) every year, for the master's as well as the bachelor's. Health departments, public universities and most hospitals are qualifying employers for the Public Service Loan Forgiveness program, which cancels the rest of your federal loans after ten years of payments. That matters more in public health than in almost any other science career.

Who actually pays you

• State and local health departments

  Surveillance, outbreak response, immunization and chronic disease programs. The classic job.

• Federal agencies

  The CDC (Centers for Disease Control and Prevention) and other agencies, paid on the government's set pay ladder.

• Hospitals and health systems

  Infection prevention, quality data, and tracking what is spreading inside the building.

• Universities

  Research funded by grants. More freedom, less security, and you spend a lot of time writing funding applications.

• Drug and device companies

  Safety monitoring and real world studies. The least publicly visible branch.

The path to becoming an epidemiologist, step by step

A science bachelor's then a public health master's. Six years, and you are paid from the first job.

1. 1

   High school diploma

   Grade 12

   Biology, statistics and as much math as your school offers. A computer class is worth more here than in most health careers.

2. 2

   Bachelor's degree

   4 years

   Biology, statistics, public health, mathematics or nursing all work. Get research experience with a professor, even unpaid, because it is what admissions committees look for.

3. 3

   Master of public health in epidemiology

   2 years

   Two years covering study design, biostatistics and data analysis, plus a supervised practice placement. Choose a school accredited by the Council on Education for Public Health.

4. 4

   First job

   Hired on

   Health department, hospital or research group. You will spend it cleaning and analyzing data, which is the real craft.

5. 5

   Optional doctorate or fellowship

   2 to 5 years

   A doctorate for research leadership, or a federal field fellowship for hands-on outbreak work.

High school courses that help you become an epidemiologist

• Statistics

  The single most useful class. Epidemiology is applied statistics about people.

• Biology

  You need to understand how diseases actually move.

• Computer science

  Writing code to handle a messy dataset is a daily skill in this job.

• English

  Your findings only count if a mayor or a doctor can read them.

Time and money, at a glance

No license, but accreditation matters

No state licenses epidemiologists and there is no exam you must pass to use the title. What employers check instead is where you studied: the Council on Education for Public Health accredits schools and programs of public health, and government hiring rules frequently require an accredited degree. There is a voluntary credential, Certified in Public Health, from the National Board of Public Health Examiners, which some employers reward and none require.

Where people study

• Accredited schools of public health

  Dozens of them across the country, at public and private universities. The accreditation is what makes a degree count for government jobs.

• The University of North Carolina Gillings School of Global Public Health

  In Chapel Hill, North Carolina. Runs an applied epidemiology master's, a clinical research master's and an epidemiology doctoral program.

• Your own state university

  In-state tuition at a public school of public health is the cheapest sensible route, and local health departments hire from it.

• Online master's programs

  Several accredited schools run them part time, which lets you work while you study.

Where epidemiologists specialize

• Infectious disease

  Outbreaks, vaccines and surveillance. The part of the job people picture.

• Chronic disease

  Cancer, diabetes and heart disease over decades. Slower, bigger, and where most of the deaths are.

• Drug safety

  Watching what happens once a medicine is on the market.

• Environmental and occupational

  What a workplace or a neighborhood is doing to the people in it.

• Injury and violence

  Crashes, overdoses and firearms treated as a public health problem rather than a crime story.

Nice-to-haves

• Coding

  The statistical languages R and Python, plus SQL (the language used to pull data out of a database). This is the skill that gets you hired.

• Mapping software

  Geographic information systems (GIS) turn a spreadsheet of cases into the map that makes people act.

• Spanish or another second language

  Interviews during an outbreak happen in whatever language the community speaks.

• A volunteer stint at a health department

  Immunization clinics and data entry are dull and they teach you how public health actually runs.

The federal disease detective program

The Epidemic Intelligence Service is the applied epidemiology training program run by the Centers for Disease Control and Prevention. It is two years long, takes people who already hold a doctorate or an advanced health degree, and puts them on real outbreaks with a mentor. It started in 1951, and its officers have worked on smallpox, HIV (the virus that causes AIDS), Ebola and the coronavirus pandemic. It is competitive, and it is the closest thing this field has to a famous apprenticeship.

What an epidemiologist does day to day

Open the surveillance dashboard and check whether anything moved overnight. Clean a messy dataset that arrived from four hospitals in four different formats. Run the analysis, then spend longer than you expected working out whether the pattern is real or an artifact of how the data was collected. Write a short brief for people who do not read statistics. A weekly meeting with nurses and program staff. When there is an outbreak, all of that stops and you are on the phone interviewing cases instead.

The honest pros and cons of being an epidemiologist

Work life

Similar paths

• StatisticianDesign the study, run the numbers, and say honestly how sure you are.
• BiologistStudy living things, in a lab or out in the field, and turn what you find into reports people act on.
• Community Health WorkerHelp people in your own neighborhood get the care and support they are entitled to.

Only about 12,800 epidemiologists

The federal career profile counts 12,800 epidemiologists in 2025 and expects much faster than average growth to 2035, but that is still only about 800 openings a year.

A master's is the entry ticket

In the federal survey of epidemiologists, 67% said a new hire needs a master's degree, 22% training after a doctorate and 11% a doctorate. Nobody said a bachelor's alone.

Every state runs a cancer registry

States require hospitals and labs to report every new cancer diagnosis, which builds a national record of who is getting which cancer, where. Keeping those registries accurate is a whole branch of this career.

Correlation is the whole argument

Epidemiologists almost never get to run an experiment on people, so the entire craft is working out whether something observed in the real world is a cause or a coincidence. Study design is the skill, and it is why the master's takes two years.