  | Administration and Finance Division | The Administration and Finance Division provides purchasing and facilities, shipping, accounts payable and receivable, payroll, accounting, budget development, financial management, administrative support and IT for the entire organization. |
| | Community Health Promotions | |
| | Environmental Health Division | Environmental Health provides regulatory and educational services for programs such as food protection; child care; onsite septic systems; pools/spas; land use; hazardous materials management; body art; disease control; and drinking water quality. |
| | Epidemiology, Planning, and Communications | TCHD's Epidemiology, Planning, and Communications Division houses Infectious Disease Control and Surveillance, Healthy Aging, Chronic Disease and Injury Prevention, Public Information, Tobacco Prevention and Community Health Data.
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| | Executive Division | Reports Directly to Executive Director but may still be under Admin/Fin budget |
| | Executive Management Team | |
| | Nursing Division | Our Nursing Division programs focus on promoting positive health for children and adults through linkages to health insurance and health care services, nurse case management, disease prevention, and clinical, preventive and health education programs. |
| | Nutrition Division | The Nutrition Division provides The Special Supplemental Nutrition Program for Women, Infants, and Children (WIC), as well as training/education on early childhood nutrition, school wellness, breastfeeding promotion, and worksite wellness. |
| | Office of Human Resources | The Office of Human Resources serves the employees of Tri-County in providing benefits, compensation, workforce planning, performance management and employee development/training. |
| | Preparedness, Response, & Communicable Disease Div | |