About Us

Vision & Mission   I   Values


Department Director

Jill Cook 

Jill Cook, MS, RN, PHN

Health Officer

Caldwell, C.

Connie Caldwell, MD

 Our Department

Organizational Chart

Strategic Plan

College Internships

Health Department

Vision and Mission


Vision: To enhance the quality of life for all in Yolo County.

Mission: The Yolo County Health Department promotes health and wellness, prevents disease and injury, and protects people and the environment.

County Health Executives Association of California Public Health 

 Core Values

Culture of Quality

  • Value and promote the mission of public health.
  • Serve the entire community with compassion.
  • Contribute to the economic vitality and health equity in the community.
  • Foster partnerships throughout the community to integrate and enhance health services.
  • Engage our community as Ambassadors of the County and Department.
  • Provide Service that is evidence based and innovative, responsive and proactive.
  • Make fiscally responsible and accountable decisions.
  • Work in a professional, productive and positive environment; proud of the difference we make each day.

Core Public Health Functions

  • Assurance
  • Policy Development
  • Assessment

10 Essential Public Health Services

  1. Monitor health status to identify community health problems.
  2. Diagnose and investigate health problems and health hazards in the community.
  3. Inform, educate, and empower people about health issues.
  4. Mobilize community partnerships to identify and solve health problems.
  5. Develop policies and plans that support individual and community health efforts.
  6. Enforce laws and regulations that project health and ensure safety.
  7. Link people to needed personal health services and assure the provision of health care when otherwise unavailable.
  8. Assure a competent public health and personal healthcare workforce.
  9. Evaluate effectiveness, accessibility, and quality of personal and population-based health services.
  10. Research for new insights and innovative solutions to health problems.