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Basic Statistics

HIV and AIDS remain a persistent problem for the United States and countries around the world. While great progress has been made in preventing and treating HIV, there is still much to do. The questions in this section provide a broad overview of the effects of HIV and AIDS in the United States and globally. For more detailed analysis of HIV data and its impact in the United States, visit our Statistics Center.

How many people receive an HIV diagnosis each year in the United States and 6 dependent areas?

In 2017, 38,739 people received an HIV diagnosis in the United States and 6 dependent areas.a The annual number of new diagnoses remained stable from 2012 to 2016.

a American Samoa, Guam, the Northern Mariana Islands, Puerto Rico, the Republic of Palau, and the US Virgin Islands.

How many people have HIV in the United States?

An estimated 1.1 million people in the United States had HIV at the end of 2015, the most recent year for which this information is available. Of those people, about 15%, or 1 in 7, did not know they were infected.

How does CDC know the number of people living with HIV if some of those people are unaware of their status?

CDC estimates the number of people living with HIV (called prevalence) by using a scientific model. This model helps CDC estimate the number of new HIV infections and how many people are infected but don’t know it. HIV prevalence is the number of people with HIV infection at a given time, such as at the end of a given year. More information on HIV prevalence.

How does HIV affect different groups of people?

There are different ways to answer this question.

In 2017, gay and bisexual men accounted for 66% of all HIV diagnoses in the United States and 6 dependent areas.a In the same year, individuals who got HIV infection through heterosexual sex made up 24% of all HIV diagnoses.

New HIV Diagnoses in the United States and 6 Dependent Areas by Transmission Category, 2017

New HIV Diagnoses in the United States and 6 Dependent Areas by Transmission Category, 2017

Includes infections attributed to male-to-male sexual contact and injection drug use (men who reported both risk factors).

If we look at HIV diagnoses by race and ethnicity, we see that African Americans are most affected by HIV. In 2017, African Americans accounted for 43% of all new HIV diagnoses. Additionally, Hispanic/Latinosb are also strongly affected. They accounted for 26% of all new HIV diagnoses.

New HIV Diagnoses by Race/Ethnicity, 2017

 New HIV Diagnoses by Race/Ethnicity, 2017

* Hispanics/Latinos can be of any race.

The most affected subpopulation is African American gay and bisexual men.

New HIV Diagnoses in the United States and 6 Dependent Areas for the Most-Affected Subpopulations, 2017

New HIV Diagnoses in the United States and 6 Dependent Areas for the Most-Affected Subpopulations, 2017

Subpopulations representing 2% or less of all people who received an HIV diagnosis in 2017 are not represented in this chart.

There are also variations by age. Young people aged 13 to 24 are especially affected by HIV. In 2017, young people accounted for 21% of all new HIV diagnoses. All young people are not equally at risk, however. Young gay and bisexual men accounted for 83% of all new HIV diagnoses in people aged 13 to 24 in 2017 (includes young gay and bisexual men who inject drugs), and young African American gay and bisexual men are even more severely affected.

CDC’s fact sheets explain the impact of HIV on various populations in the United States.

a American Samoa, Guam, the Northern Mariana Islands, Puerto Rico, the Republic of Palau, and the US Virgin Islands.
b Hispanics/Latinos can be of any race.

How many deaths are there among people with HIV?

In 2016, there were 15,807 deaths among people with diagnosed HIV in the United States and 6 dependent areas.a These deaths may be due to any cause.

a American Samoa, Guam, the Northern Mariana Islands, Puerto Rico, the Republic of Palau, and the US Virgin Islands.

Do some parts of the country have more HIV than other parts?

Yes. HIV is largely an urban disease, with most cases occurring in metropolitan areas with 500,000 or more people. The South has the highest number of people living with HIV, but if population size is taken into account, the Northeast has the highest rate of people living with HIV. (Rates are the number of cases of disease per 100,000 people. Rates allow comparisons between groups of different sizes.)

HIV in the United States by Geography is a fact sheet that explains the geography of HIV in the United States.

What about HIV around the world?

HIV disease continues to be a serious health issue for parts of the world. Worldwide, there were about 1.8 million new cases of HIV in 2017. About 36.9 million people were living with HIV around the world in 2017, and 21.7 million of them were receiving medicines to treat HIV, called antiretroviral therapy (ART). An estimated 940,000 people died from AIDS-related illnesses in 2017. Sub-Saharan Africa, which bears the heaviest burden of HIV and AIDS worldwide, accounts for about 66% of all new HIV infections. Other regions significantly affected by HIV and AIDS include Asia and the Pacific, Latin America and the Caribbean, and Eastern Europe and Central Asia.

CDC’s Global AIDS website explains what CDC is doing in the global fight against HIV.

Interested in learning more about CDC's HIV statistics?

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