For the first month since August 2019, Mexico is not the number-one nationality of migrants encountered at the U.S.-Mexico border. Venezuela, for the first time, was number one.

Data table

Just-released data show that Border Patrol apprehended 54,833 citizens of Venezuela in the areas between the U.S.-Mexico border’s ports of entry in September, a record for countries other than Mexico, and far more than its apprehensions of 39,773 Mexican citizens in September.

Data table

At the ports of entry (official border crossings), Customs and Border Protection (CBP) encountered 11,751 more Venezuelan citizens, most of them asylum seekers who had made appointments using the CBP One smartphone app. (In September, of 50,972 people who made it onto U.S. soil at ports of entry, CBP reports that about 43,000—84 percent—had CBP One appointments.) Mexico, with 13,523 citizens encountered, was still the number-one nationality at the ports of entry.

Data Table

Add together the ports of entry and the areas between them, and Venezuela was the number-one nationality in September with 66,584 migrant encounters. Mexico was the number-two nationality, with 53,296. No other nationality came close; Guatemala was in third place with 34,537.

September marked the end of the U.S. government’s 2023 fiscal year. For decades, CBP has reported its migrant encounters by fiscal year, so we now have a “year-end” comparison, at least for Border Patrol apprehensions between the ports of entry. Using this metric—which may include some double-counting, with the same migrant being apprehended two or more times—we find that 2023 was the number-two year ever for Border Patrol migrant encounters at the U.S.-Mexico border. Only 2022 was higher.

Data table

Only 28 percent of migrants apprehended at the Mexico border in fiscal 2023 were citizens of Mexico. Since 2000, 67 percent of migrants apprehended at the border have been Mexican citizens.

(Note: at GitHub, I’ve updated the tool I use to make these and many other migration charts, with data going back to October 2019. I use it all the time, feel free to run a version of your own. It does require you to know how to run a free web server on your computer; I don’t make it public because generating a table with 48 months and 20 countries makes a web server work very hard.)