How do I lookup wetlands in other Florida counties?

All 67 Florida Counties do this differently. It’s best to start with The National Fish and Wildlife Service’s (FWS) Wetlands Mapper to determine wetlands and FEMA’s Flood Zone Map to determine the flood zone(s) of a specific property. Then, contact that county’s zoning department for more information on what’s required to build on a parcel of land. Google, “ County Zoning Department”.