Promotes environmental and personal health through health promotion, disease detection, disease prevention, education and regulation. In cooperation with community resources, assists the community and the citizens to assume responsibility for their individual health and the health of the community. This is accomplished through assessment of the health status of the community, policy development and leadership, and assurance that high-quality services are available and accessible to all persons. LLCHD works with city, county, and state government to encourage policies and regulations which promote and protect public health. Divisions include Director's Office, Animal Control, Dental Health and Nutrition Services, Environmental Public Health, Health Promotion and Outreach, Community Health Services, and Health Data and Evaluation.

Epidemiological Services provides leadership in public health assessment; collects, analyzes and disseminates information about community health status; facilitates community health planning and policy development; coordinates epidemiologic response; and provides public health programs and related community initiatives with epidemiologic support for program evaluation, planning and communication needs. The GIS component provides maps to analyze relationships in spatial data to identify high-risk areas.

Resource Information Management serves as a supportive, collaborative partner in a number of community activities.