The gender makeup of the city was 47.7% male and 52.3% female. As of the census of 2000, there were 8,175 people, 3,451 households, and 2,146 families living in the city. The population density was 1,703.1 people per square mile (648.8/km²). There were 3,806 housing units at an average density of 792.9 per square mile (302.0/km²). The racial makeup of the city was 91.36% White, 5.36% African American, 0.17% Native American, 1.26% Asian, 0.01% Pacific Islander, 0.39% from other races, and 1.44% from two or more races. Hispanic or Latino of any race were 1.13% of the population. There were 3,451 households out of which 28.9% had children under the age of 18 living with them, 44.1% were married couples living together, 13.8% had a female householder with no husband present, and 37.8% were non-families. 33.0% of all households were made up of individuals and 15.9% had someone living alone who was 65 years of age or older. The average household size was 2.28 and the average family size was 2.88. In the city, the age distribution of the population shows 24.1% under the age of 18, 8.8% from 18 to 24, 27.4% from 25 to 44, 20.6% from 45 to 64, and 19.1% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 87.2 males. For every 100 females age 18 and over, there were 83.0 males. The median income for a household in the city was $26,689, and the median income for a family was $37,308. Males had a median income of $28,076 versus $19,825 for females. The per capita income for the city was $15,049. About 15.0% of families and 15.8% of the population were below the poverty line, including 23.2% of those under age 18 and 11.2% of those age 65 or over. Major employers in Princeton include Toyota Motor Manufacturing Indiana (TMMI), located 3 miles to the south, nearly halfway between Princeton and Fort Branch, where the Toyota Sequoia, Sienna, and Highlander are manufactured; and Hansen Corporation.