such zonation. These plants assist in building the dune by trapping windblown sand and in stabilizing the dune with extensive lateral root systems. Geology There are approximately of coquina rock outcrops frequently exposed along the low-tide line of Indian Harbour's ocean beach. The National Marine Fisheries Service has classified the rock as an Essential Fish Habitat-Habitat Area of Particular Concern. It is important to aquatic life and found only in a few locations along the Eastern seaboard. Fossilized Atlantic ghost crabs can be found on the Indian Harbour's ocean beach, the remnants of a unique set of geological circumstances which preserved these creatures when they died in their burrows perhaps about 110,000 years ago. There are significant deposits of sand, marl, coquina and possibly phosphate within the limits of Indian Harbour Beach. Surrounding areas Merritt Island; Indian River Lagoon; Banana River; Melbourne Atlantic Ocean Melbourne Satellite Beach Climate Indian Harbour Beach is located in the region where the climate is Humid subtropical climate. Daytime temperatures average in the summer months and in the winter months. A study commissioned by NASA lends credence to the notion that Indian Harbour Beach is located in a portion of the North American Atlantic shoreline with a uniquely reduced incidence of catastrophic hurricanes. Government In 2007, the city had a taxable real estate base of $920.7 million. Demographics As of the census of 2000, there were 8,152 people, 3,762 households, and 2,381 families residing in the city. The population density was 1,470.8/km (3,810.1/mi2). There were 4,315 housing units at an average density of 778.5/km (2,016.7/mi2). The racial makeup of the city was 95.40% White, 0.93% African American, 0.28% Native American, 1.57% Asian, 0.04% Pacific Islander, 0.55% from other races, and 1.23% from two or more races. Hispanic or Latino of any race were 3.28% of the population. There were 3,762 households, out of which 21.9% had children under the age of 18 living with them, 50.8% were married couples living together, 9.5% had a female householder with no husband present, and 36.7% were non-families. 30.6% of all households were made up of individuals, and 15.0% had someone living alone who was 65 years of age or older. The average household size was 2.17 and the average family size was 2.69. The population was distributed by age with 18.5% under the age of 18, 5.4% from 18 to 24, 23.6% from 25 to 44, 27.5% from