Career Comparison Dashboard

Comparing 2 careers • Side-by-side analysis

Data from U.S. Bureau of Labor Statistics & O*NET

Quick Comparison

Career Highlights

When comparing Epidemiologists and Hydrologists, several key differences and similarities emerge. Epidemiologists offers a median salary of $83,980, the lowest among these roles, while Hydrologists earns $92,060, the highest. In terms of job growth, Epidemiologists is projected to grow at +16.0%, the fastest, while Hydrologists is expected to grow at +0.0%, the slowest.

Job opportunities also differ: Epidemiologists has 12,300 positions (most jobs), while Hydrologists offers 6,300 (fewest jobs). Education requirements for Epidemiologists typically include Master's degree, while Hydrologists requires Bachelor's degree.

When it comes to work-life balance, Epidemiologists and Hydrologists may differ, with one typically offering a more balanced lifestyle and the other potentially having a more demanding schedule. Automation risk is lower for Epidemiologists if its score is lower, meaning it is more secure from technological replacement, while Hydrologists may face a higher risk if its score is higher. In terms of personality fit, Epidemiologists is best suited for those who align with its Holland code profile, while Hydrologists matches a different set of interests and strengths.

This side-by-side analysis helps you weigh salary, growth, job opportunities, education, work-life balance, automation risk, accessibility, and personality fit to find the best career for your goals and lifestyle.

Each career excels in different areas, or available data varies between roles. Use this comparison to find the best fit for your goals, salary expectations, and future growth.

Epidemiologists

Hydrologists

Epidemiologists

$83,980
+16.0%

Requirements

Master's degree 12,300 jobs

Automation Risk

Low
8% chance of being automated

Work-Life Balance

9.8/10
9.8/10

Top Skills

Communication skills Critical-thinking skills Detail oriented Leadership skills Math and statistical skills

Strengths

  • High Demand
  • Flexible Work
  • Continuous Learning

Challenges

  • Burnout Risk
  • Rapid Technological Change

What They Do

Epidemiologists study patterns, causes, and effects of diseases and health conditions in populations. They collect and analyze data, investigate outbreaks, and develop strategies to prevent and control disease. Their work is critical in public health, research, and policy-making.

This career is well suited for individuals who enjoy research, data analysis, and improving community health.

What Do Epidemiologists Do?

These professionals design studies, analyze health data, and provide insights to reduce disease risk and improve public health outcomes.

Common responsibilities include:

  • Collecting and analyzing health and disease data
  • Investigating outbreaks and identifying causes
  • Designing and conducting epidemiologic studies
  • Evaluating public health programs and interventions
  • Communicating findings to health authorities, policymakers, and the public
  • Preparing reports, scientific papers, and presentations
  • Collaborating with healthcare providers, researchers, and government agencies

Key Areas of Epidemiology

Epidemiologists may specialize in specific diseases, populations, or methods:

  • Infectious Disease Epidemiology: Studying the spread and control of infectious diseases
  • Chronic Disease Epidemiology: Researching long-term health conditions and risk factors
  • Environmental and Occupational Epidemiology: Assessing health risks related to workplace or environmental exposures
  • Field Investigation and Outbreak Response: Conducting on-site studies and rapid response to health emergencies
  • Biostatistics and Data Analysis: Applying statistical methods to interpret health data

Skills and Abilities Needed

Epidemiologists combine analytical, research, and communication skills.

Core Professional Skills

- Study design and epidemiologic methods - Data collection, management, and statistical analysis - Disease surveillance and outbreak investigation - Public health program evaluation - Scientific reporting and research publication - Collaboration with multidisciplinary teams

Personal Qualities That Matter

- Analytical and critical thinking - Attention to detail and accuracy - Problem-solving and investigative ability - Communication and interpersonal skills - Ethical judgment and responsibility - Patience and persistence in research

Education and Career Pathway

This role typically requires formal education and research experience:

  • Bachelor’s Degree (minimum): Biology, public health, or related field
  • Master’s Degree (common): Epidemiology, public health, or biostatistics
  • Doctoral Degree (optional): For research, teaching, or advanced positions
  • Internships or Field Experience: Gaining practical experience in health studies, surveys, or public health agencies
  • Continuous Learning: Staying updated on disease trends, research methods, and public health policies

Where Do Epidemiologists Work?

They are employed in organizations focused on public health, research, and disease prevention:

  • Public Health Departments and Agencies
  • Hospitals and Healthcare Organizations
  • Universities and Research Institutions
  • Government and International Health Organizations
  • Nonprofit and Advocacy Groups

Work environments include offices, laboratories, field sites, and healthcare facilities.

Is This Career Difficult?

This career requires strong analytical, research, and communication skills. Epidemiologists must handle complex health data, investigate disease patterns, and provide evidence-based recommendations.

Who Should Consider This Career?

This career may be a strong fit if you:

  • Enjoy research, data analysis, and public health
  • Are detail-oriented and analytical
  • Can communicate findings effectively
  • Are interested in disease prevention and population health
  • Want a career contributing to health policy and community well-being

How to Prepare Early

  • Take courses in biology, public health, statistics, and research methods
  • Participate in research projects, internships, or volunteer work in public health
  • Develop skills in data analysis, epidemiologic methods, and scientific writing
  • Stay informed on health trends, disease outbreaks, and public health guidelines
  • Explore graduate programs in epidemiology or related fields

Epidemiologists study and analyze diseases, guiding public health strategies, research, and interventions to improve population health and prevent outbreaks.

Key Industries

Scientific research and development services Hospitals; state, local, and private Colleges, universities, and professional schools; state State government, excluding education and hospitals Local government, excluding education and hospitals

Hydrologists

$92,060
0.0%

Requirements

Bachelor's degree 6,300 jobs

Automation Risk

Low
8% chance of being automated

Work-Life Balance

7.5/10
7.5/10

Top Skills

Analytical skills Communication skills Critical-thinking skills Interpersonal skills Physical stamina Problem-solving skills

Strengths

  • High Demand
  • Flexible Work
  • Continuous Learning

Challenges

  • Burnout Risk
  • Rapid Technological Change

What They Do

Hydrologists study and analyze the distribution, circulation, and physical properties of water in the environment. They examine water resources, predict water-related hazards, and support environmental management and planning. Their work is critical in water conservation, environmental protection, and natural resource management.

This career is well suited for individuals who enjoy research, fieldwork, and applying scientific methods to solve environmental challenges.

What Do Hydrologists Do?

These professionals investigate water quality, quantity, and movement to inform environmental and engineering projects.

Common responsibilities include:

  • Collecting water samples and environmental data
  • Monitoring precipitation, groundwater, surface water, and runoff
  • Analyzing data to assess water quality, availability, and contamination risks
  • Developing models and simulations to predict water behavior
  • Preparing reports, research papers, and presentations
  • Advising government agencies, organizations, or communities on water management
  • Collaborating with environmental scientists, engineers, and policymakers

Key Areas of Hydrology

Hydrologists may specialize in specific areas of water science and management:

  • Surface Water and Groundwater Analysis: Studying rivers, lakes, aquifers, and wetlands
  • Water Quality Assessment: Evaluating contamination, pollution, and ecosystem impact
  • Hydrologic Modeling and Prediction: Simulating water flow and forecasting floods or droughts
  • Environmental and Resource Management: Planning sustainable water use and conservation strategies
  • Research and Policy Support: Informing regulations, planning, and public awareness

Skills and Abilities Needed

Hydrologists combine analytical, scientific, and technical skills.

Core Professional Skills

- Data collection, sampling, and field measurements - Geographic information systems (GIS) and mapping - Hydrologic modeling and statistical analysis - Research design and environmental assessment - Report writing and presentation skills - Collaboration with multidisciplinary teams

Personal Qualities That Matter

- Analytical and critical thinking - Attention to detail and accuracy - Curiosity and problem-solving ability - Communication and teamwork skills - Patience and perseverance in fieldwork and research - Commitment to environmental stewardship

Education and Career Pathway

This role typically requires formal education and research experience:

  • Bachelor’s Degree (minimum): Hydrology, environmental science, geology, or related field
  • Master’s or Doctoral Degree (optional but common): Advanced studies for research, consulting, or specialized roles
  • Field Experience and Internships: Gaining hands-on experience with sampling, monitoring, and analysis
  • Professional Development: Training in GIS, modeling software, and water management techniques
  • Continuous Learning: Staying current on water regulations, environmental trends, and research methodologies

Where Do Hydrologists Work?

They are employed in organizations that manage or study water resources and the environment:

  • Government Agencies
  • Environmental Consulting Firms
  • Research Institutions and Universities
  • Water Utilities and Resource Management Organizations
  • Nonprofit Environmental Organizations

Work environments include offices, laboratories, field sites, and water resource facilities.

Is This Career Difficult?

This career requires scientific knowledge, analytical skills, and adaptability. Hydrologists must conduct fieldwork, interpret complex data, and communicate findings effectively.

Who Should Consider This Career?

This career may be a strong fit if you:

  • Enjoy scientific research and environmental analysis
  • Are detail-oriented and analytical
  • Can work in field and laboratory settings
  • Have strong problem-solving and communication skills
  • Want a career contributing to water resource management and environmental protection

How to Prepare Early

  • Take courses in hydrology, geology, environmental science, and mathematics
  • Participate in research projects, internships, or volunteer work related to water and environment
  • Develop skills in GIS, modeling, and data analysis
  • Stay informed on environmental regulations, water management, and conservation techniques
  • Explore graduate programs or certifications in hydrology or environmental science

Hydrologists study and manage water resources, providing critical insights that support environmental protection, resource planning, and sustainable water use.

Key Industries

Management, scientific, and technical consulting services Federal government, excluding postal service Local government, excluding education and hospitals Engineering services State government, excluding education and hospitals