The gender makeup of the city was 49.4% male and 50.6% female. As of the census of 2000, there were 7,009 people, 2,222 households, and 2,022 families living in the city. The population density was 2,244.4 people per square mile (867.4/km2). There were 3,120 housing units at an average density of 861.1/sq mi (332.8/km2). The racial makeup of the city was 97.19% White, 0.78% African American, 0.30% Native American, 0.98% Asian, 0.03% Pacific Islander, 0.11% from other races, and 0.60% from two or more races. Hispanic or Latino of any race were 1.20% of the population. There were 2,596 households, out of which 39.8% had children under the age of 18 living with them, 68.0% were married couples living together, 7.0% had a female householder with no husband present, and 22.1% were non-families. 18.8% of all households were made up of individuals, and 5.9% had someone living alone who was 65 years of age or older. The average household size was 2.70 and the average family size was 3.11. In the city the population was spread out, with 28.0% under the age of 18, 6.6% from 18 to 24, 31.4% from 25 to 44, 24.7% from 45 to 64, and 9.2% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 97.9 males. For every 100 females age 18 and over, there were 95.9 males. The median income for a household in the city was $62,794, and the median income for a family was $69,770. Males had a median income of $51,311 versus $35,184 for females. The per capita income for the city was $26,183. About 1.7% of families and 2.3% of the population were below the poverty line, including 2.8% of those under age 18 and 4.5% of those age 65 or over. Bellbrook is governed by a council-manager form of administration. The city manager is appointed by council, while the council is elected for four-year terms, and the mayor for two-year terms, in non-partisan elections.