Since no specific area is given--for the nearest hospital consider a Google search and Google Maps for distance. For flood zones see link, http://www.fema.gov/hazard/map/flood.shtm
When it comes to any safety/crime related issues, it's always best to contact the local police department with all your questions, hear all there is to hear firsthand. If unfamiliar with the area do revisit more than once and at different times of day, possibly chat with locals/neighbors. Real estate professionals are prohibited from steering, enticing a buyer to purchase, or not, in specific neighborhoods.