
30, at 1.1 million, or 64 percent of all crossers. Single adults represented the largest group of those detained in the fiscal year that ended Sept. The number was similarly high for the 2000 fiscal year, when border agents caught 1.6 million people, according to government data.

It was the highest number of illegal crossings recorded since at least 1960, when the government first began tracking such entries. A record 1.7 million migrants from around the world, many of them fleeing pandemic-ravaged countries, were encountered trying to enter the United States illegally in the last 12 months, capping a year of chaos at the southern border, which has emerged as one of the most formidable challenges for the Biden administration.
