Please answer a question about the following article about Raleigh, North Carolina:

As of the 2000 United States census, there were 276,093 persons (July 2008 estimate was 380,173) and 61,371 families residing in Raleigh. The population density was 2,409.2 people per square mile (930.2/km). There were 120,699 housing units at an average density of 1,053.2 per square mile (406.7/km). The racial composition of the city was: 63.31% White, 27.80% Black or African American, 7.01% Hispanic or Latino American, 3.38% Asian American, 0.36% Native American, 0.04% Native Hawaiian or Other Pacific Islander, 3.24% some other race, and 1.88% two or more races.

What is the population density of Raleigh?
2,409.2 people per square mile