Basic Statistics

In 2014, there were an estimated 37,600 new HIV infections—down from 45,700 in 2008.^*

Gay, bisexual, and other men who have sex with men bear the greatest burden by risk group, representing an estimated 26,200 of these new HIV infections.

* HIV infections indicate the estimated number of new infections in a given year, regardless of when those infections were diagnosed.

In 2015, 39,513 people were diagnosed with HIV. The annual number of new diagnoses declined by 9% from 2010 to 2014.

• CDC Fact Sheet: HIV in the United States
• CDC Fact Sheet: HIV in the United States by Geographic Distribution

An estimated 1.1 million people in the United States were living with HIV at the end of 2014, 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.

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 living with HIV infection at a given time, such as at the end of a given year. More information on HIV prevalence.

There are different ways to answer this question.

If we look at HIV infections^* by transmission category, we see that gay, bisexual, and other men who have sex with men are most at risk. In 2014, gay and bisexual men accounted for 70% of all new HIV infections. In the same year, individuals infected through heterosexual sex made up 23% of all new HIV infections.

* HIV infections indicate the estimated number of new infections in a given time period, regardless of when those infections were diagnosed.
HIV diagnoses refer to the number of people diagnosed with HIV infection during a given time period, not when the people were infected.

If we look at HIV diagnoses by race and ethnicity, we see that African Americans are most affected by HIV. In 2015, African Americans made up only 12%* of the US population but had 45% of all new HIV diagnoses. Additionally, Hispanic/Latinos** are also strongly affected. They made up 18% of the US population but had 24% of all new HIV diagnoses.

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

Subpopulations representing 2% or less of HIV diagnoses are not reflected in this chart.
MSM = men who have sex with men (male-to-male sexual contact)

There are also variations by age. Young people aged 13-24 are especially affected by HIV. In 2015, they comprised 16% of the US population but accounted for 22% of all new HIV diagnoses. All young people are not equally at risk, however. Young gay and bisexual men accounted for 84% of all new HIV diagnoses in people aged 13-24 in 2015, 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.

Yes. In the United States, 6,721 people died from HIV and AIDS in 2014. HIV remains a significant cause of death for certain populations. In 2014, it was the 8th leading cause of death for those aged 25-34 and 9th for those aged 35-44.

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 Geographic Distribution is a fact sheet that explains the geography of HIV in the United States.

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 2016. About 36.7 million people were living with HIV around the world in 2016, and 19.5 million of them were receiving medicines to treat HIV, called antiretroviral therapy (ART). An estimated 1 million people died from AIDS-related illnesses in 2016. Sub-Saharan Africa, which bears the heaviest burden of HIV and AIDS worldwide, accounts for about 64% 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.