Department of Public Health Data Library

Smoking is the leading cause of preventable death and disease in Massachusetts. In Massachusetts, more than 9,300 people die each year from smoking. Nationally, tobacco kills more people than motor vehicle crashes, AIDS, homicides, and poisonings combined.

HIV is a disease that attacks a person's immune system and can cause serious illness, but can be controlled with medications and proper care. Here you can find information about HIV, including prevention and treatment.

This page includes data on immunizations against COVID-19, influenza, and RSV during the current respiratory season.

See indoor air quality (IAQ) reports for Massachusetts cities and towns.

Massachusetts Department of Public Health weekly influenza update

Learn about falls among older adults in Massachusetts.

Find a Department of Public Health (DPH) funded location to get tested for HIV, hepatitis C, and sexually transmitted infections.

MDPH's Interactive Beaches Dashboard provides water quality testing results for the current beach season. It will tell you which beaches are open or closed. If a beach is closed, do not swim or enter the water at that location to avoid risk of illness.

Find out more about Massachusetts Childhood Lead Poisoning Prevention Program’s Lead Safe Homes and the inspection history of properties.