Just over half the residents of RJ City (55%) are White, and one quarter (26%) are Hispanic.  Nine percent are Black, five percent Asian, and four percent American Indian.  The number of males and females is divided almost evenly, and the age distribution is similar to that of the United States as a whole. 

Education levels are also similar to those of the United States generally.  Eight percent of residents over 25 have less than a 9^th grade education; an additional 9.5% attended but did not graduate from high school.  Nearly 30% have at least a college degree.

Of the total number of households, half consist of married couples (half of whom have children living with them, and half of whom do not).  Nine percent of all households are made up of a single adult with children.