The Alafia Watershed (HUC 03100204) covers approximately 472 square miles in west-central Florida. It is primarily a flat, low-lying area with a mixture of forest, pasture, and urban land use. The hydrology of the watershed is influenced by the Gulf of Mexico, with tidal influence extending up to the mouth of the Alafia River. The watershed is not known for significant snowpack, and surface water is the primary source of water for the area. The largest reservoir in the watershed is the C.W. Bill Young Regional Reservoir, which provides drinking water for the surrounding communities. Interesting climatic facts include the occasional occurrence of tropical storms and hurricanes during the summer and fall months. Trends in the watershed include increasing land use changes, urbanization, and population growth, which may have an impact on water quality and quantity in the future.