Floods can occur in any area of the world that experiences rainfall, but areas with many bodies of water are at a higher risk. Flooding can also occur when excessive rainfall hits land that is dry. The flood occurs because the land cannot take in all of the water.
It is possible for flooding to occur without rainfall. Areas that have a lot of ice and snow can experience flooding when the ice and snow melts. The water from the melting then goes into rivers that cannot contain it, causing the area to flood.
Coastal areas are prone to flooding as well ? particularly when a hurricane comes through. Flooding can occur from the ocean going inland or from the large amounts of rainfall associated with hurricanes.