About DHS

The Department of Homeland Security has a vital mission: to secure the nation from the many threats we face. This requires the dedication of more than 240,000 employees in jobs that range from aviation and border security to emergency response, from cybersecurity analyst to chemical facility inspector. Our duties are wide-ranging, and our goal is clear - keeping America safe.

Mission

Our duties are wide-ranging and our goal is clear: a safer, more secure America, which is resilient against terrorism and other potential threats.
Organization

The list of all Operational and Support Components that make up the Department along with our organization chart and the list of senior leadership.
Secretary Jeh Johnson

Secretary Jeh Johnson oversees the third largest Cabinet department and leads our nation's efforts to secure our country from terrorism to natural disasters.
Budget & Performance

Here’s where the public and others can assess how effectively DHS performs its mission and provides stewardship of resources.
Careers

Challenge your mind and use your skills and talents with a DHS career. Our employees play a vital role to secure our country and preserve our freedoms.
Do Business with DHS

Start here if you want to learn how to work with DHS, how we assist small businesses and about our policies, regulations and business opportunities.
Laws & Regulations

Public laws are passed by Congress and signed into law by the President. Regulations are issued to carry out the intent of legislation enacted by Congress.
History

DHS combined 22 different federal departments and agencies into a unified, integrated cabinet agency when it was established in 2002.
DHS Digital Strategy

DHS is committed to enabling better utilization of departmental data to improve the quality of services to the American people, while developing products that promote innovation while maintaining enhanced security.
Contact Us

Lookup email and mailing addresses, telephone numbers, help-desk support for Web applications, instructions on how to report incidents and more.
Employee Resources

Resources for employees of the U.S. Department of Homeland Security.