The Trump administration has significantly reduced the public availability of immigration enforcement data while expanding its deportation operations, limiting access to statistics that researchers, advocates and journalists have historically used to track policy impacts.

The Office of Homeland Security Statistics, which has tracked immigration data since 1872, has not updated key enforcement metrics on its website since early last year. Monthly reports that previously allowed near real-time tracking of immigration trends now show a notice stating the page "is delayed while it is under review." An Immigration and Customs Enforcement dashboard launched in December 2023 to provide transparency on arrests and removals has not been updated since January 2025.

The administration has released immigration figures through news releases, but these numbers have proven inconsistent. On January 20, the Department of Homeland Security reported more than 675,000 deportations since Trump's return to office, but revised that figure to 622,000 the following day. Homeland Security Secretary Kristi Noem later testified to Congress that 700,000 people had been deported, while an Associated Press analysis of ICE data put the number at roughly 400,000.

Other federal agencies have also slowed data releases. The State Department's most recent visa issuance data dates to August, and key statistics from U.S. Citizenship and Immigration Services have not been updated since October. Some data continues to flow, including border encounter statistics from U.S. Customs and Border Protection and information from Department of Justice immigration courts.

Researchers and advocacy groups across the political spectrum have criticized the reduced transparency. Mike Howell of the conservative Oversight Project said the department has released "numbers that purport to be statistics with no statistical backup." Legal challenges and Freedom of Information Act requests have become necessary tools for accessing enforcement data that was previously published routinely.

The Department of Homeland Security did not respond to detailed questions about the data gaps, but stated in a response that "this is the most transparent Administration in history" and that it releases "new data multiple times a week and upon reporter request."