According to the United States Census Bureau, the city has a total area of 166.4 km² (64.2 mi²). 147.4 km² (56.9 mi²) of it is land and 19.0 km² (7.3 mi²) of it is water. The total area is 11.40% water.
As of the census of 2000, there are 71,127 people, 26,943 households, and 17,647 families residing in the city. The population density is 482.6/km² (1,249.9/mi²). There are 29,559 housing units at an average density of 200.5/km² (519.4/mi²). The racial makeup of the city is 62.18% White, 33.53% African American, 0.43% Native American, 1.25% Asian, 0.09% Pacific Islander, 0.87% from other races, and 1.64% from two or more races. 2.55% of the population are Hispanic or Latino of any race.
There are 26,943 households out of which 32.1% have children under the age of 18 living with them, 42.6% are married couples living together, 18.2% have a female householder with no husband present, and 34.5% are non-families. 27.7% of all households are made up of individuals and 8.5% have someone living alone who is 65 years of age or older. The average household size is 2.51 and the average family size is 3.07.
In the city the population is spread out with 26.0% under the age of 18, 11.1% from 18 to 24, 30.4% from 25 to 44, 21.1% from 45 to 64, and 11.4% who are 65 years of age or older. The median age is 34 years. For every 100 females there are 98.2 males. For every 100 females age 18 and over, there are 96.1 males.
The median income for a household in the city is $32,779, and the median income for a family is $39,213. Males have a median income of $29,220 versus $21,736 for females. The per capita income for the city is $17,554. 17.7% of the population and 14.1% of families are below the poverty line. Out of the total people living in poverty, 25.8% are under the age of 18 and 13.7% are 65 or older.