line. 2000 As of the census of 2000, there were 84,084 people, 44,497 households, and 16,775 families in the city. The population density was 10,178.7 inhabitants per square mile (3,930.4/km2). There were 47,863 housing units at an average density of . The racial makeup of the city was 78.29% White, 7.25% Asian, 3.78% African American, 0.47% Native American, 0.10% Pacific Islander, 5.97% from other races, and 4.13% from two or more races. 13.44% of the population were Hispanic or Latino of any race. There were 44,497 households, out of which 15.8% had children under the age of 18, 27.5% were married couples living together, 7.5% had a female householder with no husband present, and 62.3% were non-families. 51.2% of all households were made up of individuals, and 10.6% had someone living alone who was 65 years of age or older. The average household size was 1.83 and the average family size was 2.80. The city of Santa Monica is consistently among the most educated cities in the United States, with 23.8 percent of all residents holding graduate degrees. The population was diverse in age, with 14.6% under 18, 6.1% from 18 to 24, 40.1% from 25 to 44, 24.8% from 45 to 64, and 14.4% 65 years or older. The median age was 39 years. For every 100 females, there were 93.0 males. For every 100 females age 18 and over, there were 91.3 males. According to a 2009 estimate, the median income for a household in the city was $71,095, and the median income for a family was $109,410. Males had a median income of $55,689 versus $42,948 for females. The per capita income for the city was $42,874. 10.4% of the population and 5.4% of families were below the poverty line. Out of the total population, 9.9% of those under the age of 18 and 10.2% of those 65 and older were living below the poverty line. Crime In 2006, crime in Santa Monica affected 4.41% of the population, slightly lower than the national average crime rate that year of 4.48%. The majority of this was property crime, which affected 3.74% of Santa Monica's population in 2006; this was higher than the rates for Los Angeles County (2.76%) and California (3.17%), but lower than the national average (3.91%). These per-capita crime rates are computed based on Santa Monica's full-time population of about 85,000. However, the Santa Monica Police