Total population...................................... 666,168 SEX Male..................................................... 322,968 Female................................................... 343,200 AGE Under 5 years............................................ 48,824 5 to 17 years............................................ 114,517 18 to 20 years........................................... 33,586 21 to 24 years........................................... 42,647 25 to 44 years........................................... 217,981 45 to 54 years........................................... 68,114 55 to 59 years........................................... 29,861 60 to 64 years........................................... 29,903 65 to 74 years........................................... 49,596 75 to 84 years........................................... 23,997 85 years and over........................................ 7,142 Median age............................................... 32.9 Under 18 years.............................................. 163,341 Percent of total population.............................. 24.5 65 years and over........................................... 80,735 Percent of total population.............................. 12.1 HOUSEHOLDS BY TYPE Total households............................................ 247,497 Family households (families)............................. 175,867 Married-couple families............................... 137,983 Percent of total households........................ 55.8 Other family, male householder........................ 8,565 Other family, female householder...................... 29,319 Nonfamily households..................................... 71,630 Percent of total households........................ 28.9 Householder living alone.............................. 57,451 Householder 65 years and over...................... 21,566 Persons living in households............................. 646,097 Persons per household.................................... 2.61 GROUP QUARTERS Persons living in group quarters......................... 20,071 Institutionalized persons............................. 8,662 Other persons in group quarters....................... 11,409 RACE AND HISPANIC ORIGIN White.................................................... 535,094 Black.................................................... 112,460 Percent of total population........................... 16.9 American Indian, Eskimo, or Aleut........................ 2,019 Percent of total population........................... 0.3 Asian or Pacific Islander................................ 9,057