The 75 countries include Afghanistan, Iran, Russia and Somalia.
Since President Donald Trump took office, his administration has focused on deporting migrants illegally in the United States as well as holders of student and visitor exchange visas.
The State Department said it was halting all visitor visas for people from Gaza pending a review.
The U.S. State Department said it is restarting the suspended process for foreigners applying for student visas but all applicants will now be required to unlock their social media accounts for government review.
Khaby Lame, the world's most popular TikTok personality, has left the U.S. after being detained by ICE for allegedly overstaying his visa.
Chinese students in the U.S. are scrambling to figure out their futures after U.S. Secretary of State Marco Rubio announced Wednesday some students would have their visas revoked.