Are there many homeless in Ensenada, Mexico?

I am moving soon to Ensenada or Rosarito and would like to get involved with a charity for homeless. Before I plan my destination I want to know which location is best for charity work. I would like to remain safe but get involved in a location that can actually use me. Does Ensenada have homeless shelters, soup kitchens, orphanages, etc? Or must I go north to TJ to be of any real use?