According to the Mayor’s Office of Immigrant Affairs, around 412,000 undocumented immigrants resided in the city as of 2022. Approximately 229,000 migrants arrived in the city beginning in that year, though fewer than 51,000 still reside in city-supported shelter.

Border enforcement agencies have spent billions assembling surveillance tools to track and find people. These could be critical in President Trump’s immigration agenda.

In his first week, President Donald Trump declared a national emergency at the U.S. southern border, reinstated some of his first-term policies and ended programs that allowed people to legally enter the U.