it was the only tornado of this magnitude ever recorded in Delaware. Geography According to the U.S. Census Bureau, the city has a total area of 3.2 square miles (8.2 km), of which 3.0 square miles (7.9 km) of it is land and 0.1 square miles (0.3 km) of it (3.79%) is water. The city is the home of Broad Dyke, the first dyke built in the United States. Demographics As of the census of 2000, there were 4,862 people, 2,012 households, and 1,339 families residing in the city. The population density was . There were 2,199 housing units at an average density of . The racial makeup of the city was 77.48% White, 20.20% African American, 0.25% Native American, 0.39% Asian, 0.84% from other races, and 0.84% from two or more races. Hispanic or Latino of any race were 2.41% of the population. There were 2,012 households, out of which 26.2% had children under the age of 18 living with them, 47.1% were married couples living together, 14.9% had a female householder with no husband present, and 33.4% were non-families. 27.7% of all households were made up of individuals, and 9.8% had someone living alone who was 65 years of age or older. The average household size was 2.42 and the average family size was 2.93. In the city, the population was spread out, with 21.8% under the age of 18, 7.8% from 18 to 24, 28.6% from 25 to 44, 27.5% from 45 to 64, and 14.4% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 88.3 males. For every 100 females age 18 and over, there were 85.6 males. The median income for a household in the city was $52,449, and the median income for a family was $56,368. Males had a median income of $40,153 versus $31,571 for females. The per capita income for the city was $24,052. About 3.9% of families and 5.3% of the population were below the poverty line, including 5.8% of those under age 18 and 7.5% of those age 65 or over. Arts and culture Historic sites The New Castle Historic District is an area approximately 4 by 5 blocks square in the center of town with about 500 historic buildings that date from c. 1700 to 1940. This area contains one of the highest concentrations of well-preserved buildings dating