The Office of Homeland Security Statistics (OHSS) was established in September 2023, replacing the former Office of Immigration Statistics (OIS). OHSS was established to perform independent statistical reporting for the Department of Homeland Security (DHS). Prior to the creation of OHSS, DHS was the largest domestically-focused federal department without an independent statistical unit or agency mandated to share data with the public. OHSS makes objective, credible, accurate, relevant, and timely federal homeland security statistics available to the public, our interagency partners, and Congress — anyone interested in obtaining quality evidence related to DHS’s vital mission.
OHSS will continue to produce legacy OIS data and reports along with a number of new immigration products, and also report on a range of additional topics, including immigration, law enforcement use of force, and intellectual property rights enforcement. Over time, OHSS reports will cover all DHS homeland security statistical data, including cybersecurity; emergency management; infrastructure protection; maritime; screening; terrorism and targeted violence; and chemical, biological, radiological, and nuclear.
Review the topics we cover below, and click the links to find OHSS reports and other resources.
OHSS Topics
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Immigration data is collected and disseminated from numerous homeland security agencies, including U.S. Customs and Border Protection (CBP), U.S. Citizenship and Immigration Services (USCIS), and Immigration and Customs Enforcement (ICE) as well as the Department of Justice Executive Office for Immigration Review. The three homeland security operational Components oversee lawful immigration to the United States and safeguard the borders.
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International commerce is critical to America’s economy, and the entire world. CBP is tasked with keeping international trade safe and vibrant. CBP applies sophisticated technologies and highly trained personnel to help secure U.S. ports and borders and expedite trade. ICE investigates violations of U.S. import and export laws to ensure national security, protect the public’s health and safety, and stop predatory and illegal trade practices.
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The Federal Emergency Management Agency (FEMA) leads the country’s risk-based, comprehensive emergency management system of preparedness, protection, response, recovery, and mitigation. FEMA strives to reduce the loss of life and property and protect the nation from a variety of hazards, including natural disasters and acts of terrorism.
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Critical infrastructure includes the country’s vast network of highways, connecting bridges and tunnels, railways, utilities, and buildings necessary in daily life. Transportation, commerce, clean water, and electricity all rely on these vital systems. The DHS Science and Technology Directorate works closely with infrastructure owners, operators, and CISA to identify potential infrastructure vulnerabilities.
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Essential to homeland security is the mission to enhance maritime border security while maximizing the flow of legitimate trade and travel on the sea, ocean, and other navigable waterways. Navigable waterways include the Great Lakes and all inland waterways subject to federal jurisdiction, such as the Mississippi River, the Intracoastal Waterway, and other inter-state lakes and rivers.
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The Transportation Security Administration (TSA) was created as a response to the attacks on September 11, 2001, with the goal to prevent similar attacks in the future. The TSA mission is to "protect the Nation's transportation systems to ensure freedom of movement for people and commerce."
