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New York City Department of Health, Environment & Health Data Portal. Asthma data: . Accessed at https://a816-dohbesp.nyc.gov/IndicatorPublic/data-explorer/asthma/ on Oct 19, 2026. Copy citation.

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Adults with asthma

Adults age 18 and older who have ever been diagnosed with asthma.

Adults with a recent asthma attack

Adults reporting an asthma diagnosis, and symptoms, in the last 12 months (from when they were surveyed). Poor air quality and housing issues increase risk of developing and triggering asthma.

Children ever diagnosed with asthma

Children ages 1 to 13 that have ever received an asthma diagnosis.

Youth with a recent asthma attack

Public high school students who reported having an asthma attack in the past 12 months from when they were surveyed.

Children with a recent asthma attack

Children ages 1 to 13 who have had an asthma attack in the past 12 months from when they were surveyed. Asthma attacks are a measurable adverse health outcome of asthma.

Children still with asthma

Children ages 1 to 13 that currently have asthma. Not every asthma diagnosis is correct. The number of children who still have asthma is usually smaller than the number of children who have ever been diagnosed with asthma.

Asthma emergency department visits (adults)

Emergency department visits for asthma. Things like smoke, air pollution, dust mites, cockroaches, mold, pollen and pet dander can trigger asthma.

Asthma emergency department visits (adults), by NTA

Emergency department visits for asthma. Things like smoke, air pollution, dust mites, cockroaches, mold, pollen and pet dander can trigger asthma.

Asthma emergency department visits (age 4 and under)

Severe asthma attacks can result in a visit to the ED. Things like smoke, air pollution, dust mites, cockroaches, mold, pollen and pet dander can trigger asthma.

Asthma emergency department visits (age 4 and under), by NTA

Emergency department visits for asthma. Things like smoke, air pollution, dust mites, cockroaches, mold, pollen and pet dander can trigger asthma.

Asthma emergency department visits (age 5 to 17)

Emergency department visits for asthma. Things like smoke, air pollution, dust mites, cockroaches, mold, pollen and pet dander can trigger asthma.

Asthma emergency department visits (age 5 to 17), by NTA

Emergency department visits for asthma. Things like smoke, air pollution, dust mites, cockroaches, mold, pollen and pet dander can trigger asthma.

Asthma hospitalizations (adults)

Hospitalizations for asthma. These more severe asthma outcomes are often clustered in high-poverty neighborhoods, where disinvestment and poor housing conditions expose residents to triggers.

Asthma hospitalizations (adults), by NTA

Hospitalizations for asthma. These more severe asthma outcomes are often clustered in high-poverty neighborhoods, where disinvestment and poor housing conditions expose residents to triggers.

Asthma hospitalizations (age 4 and under)

Asthma hospitalizations are more severe asthma outcomes. They're often clustered in high-poverty neighborhoods, where disinvestment and poor housing conditions expose residents to triggers.

Asthma hospitalizations (age 4 and under), by NTA

Hospitalizations for asthma. These more severe asthma outcomes are often clustered in high-poverty neighborhoods, where disinvestment and poor housing conditions expose residents to triggers.

Asthma hospitalizations (age 5 to 17)

Hospitalizations for asthma. These more severe asthma outcomes are often clustered in high-poverty neighborhoods, where disinvestment and poor housing conditions expose residents to triggers.

Asthma hospitalizations (age 5 to 17), by NTA

Hospitalizations for asthma. These more severe asthma outcomes are often clustered in high-poverty neighborhoods, where disinvestment and poor housing conditions expose residents to triggers.

Asthma

Asthma is a common disease in which the lungs become swollen, making breathing difficult. Symptoms include wheezing, coughing, shortness of breath and tightness in the chest. The exact causes of asthma are not known. Asthma cannot be cured, but it can be controlled.

Asthma is a leading cause of emergency room visits, hospitalizations and missed school days in New York City’s poorest neighborhoods. In NYC, asthma is more common among low-income Black and Latino children.

Asthma and the Environment

Certain things in the environment can trigger an asthma attack or make symptoms worse. Common triggers include:

Controlling Asthma

Asthma does not have to prevent you from leading an active and healthy life. You can take charge by having a plan to control asthma, including these strategies for avoiding asthma triggers:

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