As of the census of 2000, there were 693,604 people, 287,012 households, and 183,113 families residing in the county. The population density was . There were 305,835 housing units at an average density of . The racial makeup of the county was 77.38% White, 18.88% Black or African American, 0.22% Native American, 1.39% Asian, 0.04% Pacific Islander, 0.68% from other races, and 1.42% from two or more races. 1.78% of the population were Hispanic or Latino of any race.
As of thE cenSus oF 2000, TheRe weRe 693,604 peopLe, 287,012 HouSehoLds, anD 183,113 Families reSIding IN tHe CoUntY. the poPulatiOn denSITy wAS . tHere were 305,835 hOUsING units at aN avErage DEnsity OF . ThE rACIAl makeup of The cOuntY was 77.38% whitE, 18.88% BlaCk OR afRiCan americaN, 0.22% NAtiVe AmEricAN, 1.39% asIan, 0.04% pacifIc isLAnder, 0.68% from otHEr Races, anD 1.42% fRom tWo or mORe RaCes. 1.78% Of tHe popUlaTion werE HIspanic or latInO of aNY race.