According to the CDC, from the beginning of the AIDS epidemic through the end of 2011 there have been a total of 1,190,71 cases of AIDS reported in the US and 6 US dependent territories.
The CDC estimates that of the 939,219 adult or adolescent males who received an AIDS diagnosis from the beginning of the epidemic through 2011, 560,860 cases were reportedly transmitted through male-to-male sexual contact, 201,271 were reportedly transmitted through injection drug use, 83,455 were reportedly transmitted through male-to-male sexual contact and injection drug use, 81,477 were reportedly transmitted through heterosexual contact, and 12,157 were attributed to "other."
The CDC estimates that of the 241,553 adult or adolescent females who received an AIDS diagnosis from the beginning of the epidemic through 2011, 92,833 were reportedly transmitted through injection drug use, 142,153 were reportedly transmitted through heterosexual contact, and 6,567 were attributed to "other."
Centers for Disease Control and Prevention. HIV Surveillance Report, 2011, "Rates of diagnoses of HIV infection among adults and adolescents, by area of residence, 2011—United States and 6 dependent areas"; Vol. 23, Table 2b, pp 23-24. Published February 2013. Accessed May 21, 2013.
http://www.cdc.gov/hiv/pdf/st…
