Links to Ontario Health Unit Demographic Info (Source: 2021 Census)

• Brant County Health Unit [map]
• Chatham-Kent Health Unit [map]
• City of Hamilton Health Unit [map]
• City of Ottawa Health Unit [map]
• City of Toronto Health Unit [map]
• Durham Regional Health Unit [map]
  
• Grey Bruce Health Unit [map]
• Haldimand-Norfolk Health Unit [map]
• Haliburton, Kawartha, Pine Ridge District Health Unit [map]
• Halton Regional Health Unit [map]
  
• Hastings and Prince Edward Counties Health Unit [map]
• Huron Perth Health Unit [map]
• Kingston, Frontenac and Lennox and Addington Health Unit [map]
• Lambton Health Unit [map]
• Leeds, Grenville and Lanark District Health Unit [map]
• Middlesex-London Health Unit [map]
  
• Niagara Regional Area Health Unit [map]
• North Bay Parry Sound District Health Unit [map]
• Northwestern Health Unit [map]
• Oxford Elgin St. Thomas Health Unit [map]
• Peel Regional Health Unit [map]
• Peterborough County--City Health Unit [map]
• Porcupine Health Unit [map]
• Renfrew County and District Health Unit [map]
• Simcoe Muskoka District Health Unit [map]
  
• Sudbury and District Health Unit [map]
• The District of Algoma Health Unit [map]
• The Eastern Ontario Health Unit [map]
• Thunder Bay District Health Unit [map]
• Timiskaming Health Unit [map]
  
• Waterloo Health Unit [map]
  
• Wellington-Dufferin-Guelph Health Unit [map]
• Windsor-Essex County Health Unit [map]
• York Regional Health Unit [map]