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Statistics Overview

Unless otherwise noted, the following data are from CDC’s HIV Surveillance Report: Diagnoses of HIV Infection and AIDS in the United States and Dependent Areas, 2013; Vol. 25.

Definitions

For more definitions and details about how HIV infection and AIDS data are tabulated, read the "Technical Notes" from the HIV Surveillance Report: Diagnoses of HIV Infection and AIDS in the United States and Dependent Areas, 2013.

For additional details on HIV disease surveillance, view the Kaiser Family Foundation tutorial: Understanding HIV/AIDS Surveillance Data in the United States.

HIV Prevalence Estimate

Prevalence is the number of people living with HIV infection at a given time, such as at the end of a given year.

At the end of 2011, an estimated 1,201,100 persons aged 13 and older were living with HIV infection in the United States, including 160,300 (14%) persons whose infections had not been diagnosed.a

aCDC. Monitoring selected national HIV prevention and care objectives by using HIV surveillance data—United States and 6 U.S. dependent areas—2011. HIV Surveillance Supplemental Report 2013;18(No. 5).

HIV Incidence Estimate

Incidence is the number of new HIV infections that occur during a given year. CDC estimates that approximately 50,000 people in the United States are newly infected with HIV each year. In 2010 (the most recent year that data are available), there were an estimated 47,500 new HIV infections.a Nearly two thirds of these new infections occurred in gay and bisexual men. Black/African American men and women were also highly affected and were estimated to have an HIV incidence rate that was almost 8 times as high as the incidence rate among whites. Visit the HIV incidence page for more details.

aCDC. Estimated HIV incidence among adults and adolescents in the United States, 2007-2010. HIV Supplemental Report 2012). Available at http://www.cdc.gov/hiv/library/slideSets/index.html.

Incidence Infographic

The infographic New HIV Infections in the United States, 2010, is based on incidence numbers from: Estimated HIV incidence among adults and adolescents in the United States, 2007–2010. HIV Surveillance Supplemental Report 2012;17(4).

Diagnoses of HIV Infection

In 2013, the estimated number of diagnoses of HIV infection in the United States was 47,352. There were 37,887 diagnoses in adult and adolescent males and 9,278 in adult and adolescent females. There were an estimated 187 diagnoses of HIV infection among children aged less than 13 years at diagnosis.

Diagnoses of HIV Infection, by Age

In 2013, the estimated number of diagnoses of HIV infection in the United States, by age at diagnosis, was as follows:

Age (Years) Estimated Number of Diagnoses
of HIV Infection, 2013
Under 13 187
Ages 13-14 45
Ages 15-19 1,863
Ages 20-24 8,053
Ages 25-29 7,825
Ages 30-34 6,165
Ages 35-39 4,858
Ages 40-44 4,820
Ages 45-49 4,961
Ages 50-54 3,747
Ages 55-59 2,467
Ages 60-64 1,316
Ages 65 or older 1,045

Diagnoses of HIV Infection, by Race/Ethnicity

CDC tracks diagnoses of HIV infection information on seven racial and ethnic groups: American Indian/Alaska Native, Asian, black/African American, Hispanic/Latino, Native Hawaiian/other Pacific Islander, white, and multiple races.

In 2013, the estimated number of diagnoses of HIV infection in the United States was as follows:

Race or Ethnicity Estimated Number of Diagnoses
of HIV Infection, 2013
American Indian/Alaska Native 218
Asian 973
Black/African American 21,836
Hispanic/Latinoa 10,117
Native Hawaiian/Other Pacific Islander 67
White 13,101
Multiple Races 1,039

aHispanics/Latinos can be of any race.

For more details on HIV infection and race/ethnicity, see CDC's Populations and Surveillance fact sheets.

Diagnoses of HIV Infection, by Transmission Category

Six common transmission categories are male-to-male sexual contact, injection drug use, male-to-male sexual contact and injection drug use, heterosexual contact, mother-to-child (perinatal) transmission, and other (includes blood transfusions and unknown cause).

The distribution of the estimated number of diagnoses of HIV infection among adults and adolescents in the United States by transmission category follows. A breakdown by sex is provided where appropriate.

Transmission Category Estimated Number of Diagnoses of HIV Infection, 2013
Adult and Adolescent Males Adult and Adolescent Females Total
Male-to-male sexual contact 30,689 NA 30,689
Injection drug use 1,942 1,154 3,096
Male-to-male sexual contact and injection drug use 1,270 NA 1,270
Heterosexual contacta 3,887 8,031 11,918
Otherb 99 93 192

aHeterosexual contact with a person known to have, or to be at high risk for, HIV infection.
bIncludes hemophilia, blood transfusion, perinatal exposure, and risk factor not reported or not identified.

The distribution of the estimated number of diagnoses of HIV infection among children aged less than 13 years at the time of diagnosis in the United States, by transmission category, follows:

Transmission Category Estimated Number of Diagnoses of HIV Infection, 2013
Perinatal 107
Othera 80

aIncludes hemophilia, blood transfusion, and risk factor not reported or not identified.

HIV Diagnoses, by Top 10 States/Dependent Areas

These are the 10 states or dependent areas reporting the highest number of HIV diagnoses in 2013:

State/Dependent Area Number of Diagnoses of HIV Infection, 2013
Florida 5,377
California 5,334
Texas 4,854
New York 3,803
Georgia 3,020
New Jersey 2,177
Maryland 2,174
Illinois 2,091
North Carolina 1,578
Pennsylvania 1,425

Persons Living with a Diagnosed of HIV Infection

At the end of 2012, there were an estimated 914,826 persons living with diagnosed HIV infection in the United States.

Data include persons with a diagnosis of HIV infection regardless of the stage of disease at diagnosis. Estimated numbers resulted from statistical adjustment that accounted for delays in reporting to the health department (but not for incomplete reporting) and missing transmission category, where appropriate.

Because of delays in reporting of deaths, death and prevalence data are only available through the end of 2012. The exclusion of data from the most recent year allows at least 18 months for deaths to be reported and for these persons to be removed from calculations of persons living with diagnosed HIV infection.

Totals include persons of unknown race/ethnicity. Because totals for the estimated numbers were calculated independently of the values for the subpopulations, the subpopulation values may not equal these totals.

Stage 3 (AIDS)

In 2013, the estimated number of persons with diagnosed HIV infection classified as stage 3 (AIDS) in the United States was 26,688. Of these, 20,256 stage 3 (AIDS) classifications were among adult and adolescent males, 6,424 were among adult and adolescent females, and 8 were among children aged less than 13 years.

The cumulative estimated number of persons with diagnosed HIV infection ever classified as stage 3 (AIDS) through 2012 in the United States was 1,194,039.

Estimated numbers resulted from statistical adjustment that accounted for delays in reporting to the health department (but not for incomplete reporting) and missing transmission category, where appropriate.

Cumulative totals include persons of unknown race/ethnicity. Because totals for the estimated numbers were calculated independently of the values for the subpopulations, the subpopulation values may not equal these totals.

Stage 3 (AIDS), by Age

In 2013, the estimated number of stage 3 (AIDS) classifications in the 50 states and the District of Columbia, by distribution of ages at time of classification, was as follows:

Age (Years) Estimated Number of Persons with Diagnosed HIV infection Ever Classified as Stage 3 (AIDS), 2013
Under 13 8
Ages 13-14 30
Ages 15-19 435
Ages 20-24 2,239
Ages 25-29 3,123
Ages 30-34 3,268
Ages 35-39 3,200
Ages 40-44 3,496
Ages 45-49 3,781
Ages 50-54 3,135
Ages 55-59 1,998
Ages 60-64 1,144
Ages 65 or older 831

Stage 3 (AIDS), by Race/Ethnicity

CDC tracks AIDS information on seven racial and ethnic groups: American Indian/Alaska Native, Asian, black/African American, Hispanic/Latino, Native Hawaiian/other Pacific Islander, white, and multiple races.

In 2013, the estimated number of persons with diagnosed HIV infection ever classified as stage 3 (AIDS) in the United States, by race or ethnicity was as follows:

Race or Ethnicity Estimated Number of Persons with Diagnosed HIV Infection Ever Classified as Stage 3 (AIDS), 2013 Cumulative Estimated Number of Persons with Diagnosed HIV Infection Ever Classified as Stage 3 (AIDS), Through 2013a
American Indian/Alaska Native 104 3,514
Asianb 415 9,712
Black/African American 13,172 497,267
Hispanic/Latinoc 5,336 215,685
Native Hawaiian/Other Pacific Islander 37 855
White 6,759 436,557
Multiple Races 867 30,448

aFrom the beginning of the epidemic through 2013.
bIncludes Asian/Pacific Islander legacy cases.
cHispanics/Latinos can be of any race.

For more details on AIDS and race/ethnicity, see CDC's fact sheets.

Stage 3 (AIDS), by Transmission Category

CDC collects HIV and stage 3 (AIDS) data using six common transmission categories: male-to-male sexual contact, injection drug use, male-to-male sexual contact and injection drug use, heterosexual contact, mother-to-child (perinatal) transmission, and other (includes blood transfusions and unknown cause).

The distribution of the estimated number of persons with HIV infection ever classified as stage 3 (AIDS) among adults and adolescents in the United States, by transmission category, follows. A breakdown by sex is provided where appropriate.

Transmission Category Estimated Number of Persons with Diagnosed HIV infection Ever Classified as stage 3 (AIDS), 2013
Adult and Adolescent Males Adult and Adolescent Females Total
Male-to-male sexual contact 14,611 NA 14,611
Injection drug use 1,610 1,143 2,753
Male-to-male sexual contact and injection drug use 1,026 NA 1,026
Heterosexual contacta 2,865 5,109 7,974
Otherb 144 172 316

aHeterosexual contact with a person known to have, or to be at high risk for, HIV infection.
bIncludes hemophilia, blood transfusion, perinatal exposure, and risk factor not reported or not identified.

Transmission Category Cumulative Estimated Number of Persons with Diagnosed HIV Infection Ever Classified as Stage 3 (AIDS), Through 2013a
Adult and Adolescent Males Adult and Adolescent Females Total
Male-to-male sexual contact 577,403 NA 577,403
Injection drug use 187,218 89,790 277,008
Male-to-male sexual contact and injection drug use 83,828 NA 83,828
Heterosexual contactb 82,447 146,521 228,968
Otherc 11,545 5,868 17,413

aFrom the beginning of the epidemic through 2013.
bHeterosexual contact with a person known to have, or to be at high risk for, HIV infection.
cIncludes hemophilia, blood transfusion, perinatal exposure, and risk factor not reported or not identified.

Persons Living with Diagnosed HIV Infection Ever Classified as Stage 3 (AIDS)

At the end of 2012, an estimated 508,845 persons in the United States were living with diagnosed HIV infection ever classified as Stage 3 (AIDS). Estimated numbers resulted from statistical adjustment that accounted for delays in reporting to the health department (but not for incomplete reporting) and missing transmission category, where appropriate.

Because of delays in reporting of deaths to the National HIV Surveillance System (NHSS), four years of prevalence data are displayed. The data reflect the persons living with an infection ever classified as stage 3 (AIDS) at the end of a given year during 2009-2012. The exclusion of data from the most recent year allows at least 18 months for deaths to be reported and for these persons to be removed from calculations of persons living with an AIDS diagnosis.

Totals include persons of unknown race/ethnicity. Because totals for the estimated numbers were calculated independently of the values for the subpopulations, the subpopulation values may not equal these totals.

Deaths of Persons with Diagnosed HIV Infection Ever Classified as Stage 3 (AIDS)

In 2012, the estimated number of deaths of persons with diagnosed HIV infection ever classified as stage 3 (AIDS) in the United States was 13,712.

The cumulative estimated number of deaths of persons with diagnosed HIV infection ever classified as stage 3 (AIDS) in the United States, through 2012, was 658,507.

Deaths of persons with diagnosed HIV infection ever classified as stage 3 (AIDS) may be due to any cause.

Estimated numbers resulted from statistical adjustment that accounted for delays in reporting to the health department (but not for incomplete reporting) and missing transmission category, where appropriate. Because of delays in reporting of deaths, data are only available through the end of 2012. The exclusion of data from the most recent year allows at least 18 months for deaths of persons with an AIDS diagnosis to be reported.

Totals include persons of unknown race/ethnicity. Because totals for the estimated numbers were calculated independently of the values for the subpopulations, the subpopulation values may not equal these totals.

State-by-State HIV infection and AIDS Data

International Statistics

HIV disease continues to be a serious health issue for parts of the world. Worldwide, there were about 2.1 million new cases of HIV in 2013. About 35 million people are living with HIV around the world. In 2013, there were about 1.5 million deaths in persons with AIDS, and nearly 39 million people with AIDS have died worldwide since the epidemic began. Even though Sub-Saharan Africa bears the biggest burden of HIV/AIDS, countries in South and Southeast Asia, Eastern Europe and Central Asia, and those in Latin America are significantly affected by HIV and AIDS. CDC's Global AIDS web site explains what CDC is doing in countries where HIV and AIDS have had great impact. Other resources for international HIV and AIDS statistics:

 

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