The terrorist attacks of September 11, 2001, caused significant loss of life and lasting trauma for our nation. The events of that day, the emergency response and the acts of selflessness—from individuals sworn to duty and everyday people alike—echo in current conversations about patriotism, security and service.

Today, we remember the victims and the heroes, and we reflect on the impact the day’s events have had on our nation.

Explore the links below to find U.S. Census Bureau data and resources on emergency management, community resilience, volunteer service and other related subjects.