U.S. Customs and Border Protection (CBP) released data this evening about its “encounters” (regular apprehensions and Title 42 expulsions) with undocumented migrants at the U.S.-Mexico border during March. Here are a few graphics illustrating key trends.

CBP and Border Patrol encountered migrants at the U.S.-Mexico border 23% more often in March than in February. Much of the variation was seasonal: March is usually busier due to milder weather.

The nationalities that increased by more than 2,500 migrant encounters from February to March were Mexico, Colombia, India, Venezuela, and Peru.

U.S. border authorities used the zombie Title 42 authority 87,661 times in March to expel migrants from the U.S.-Mexico border. That’s the most expulsions in a single month since last June.

Here’s the nationalities of migrants taken into CBP and Border Patrol custody at the US-Mexico border in each of the past 3 months.


– Colombia is now the number 2 nationality (which may loom a bit over President Gustavo Petro’s visit to Washington this week).
– Peru is now 5th.
– March saw by far the largest number of migrants from India in a single month.
– Just because Title 42 gets applied to a nationality doesn’t mean it drops in the ranking.

These tables show which countries’ migrants most often come to the U.S.-Mexico border’s ports of entry (official border crossings).

This may give a sense of which nationalities’ migrants are having at least some success with the “CBP One” app’s asylum appointments feature. It’s surprisingly consistent.

One more: March saw CBP grant the largest number yet of appointments for migrants to seek asylum at U.S.-Mexico border ports of entry (official border crossings).

It averaged 764 appointments per day, virtually all of them made via the “CBP One” smartphone app.

Judging from widespread reports of frustration with the app in Mexican border cities, 764 spots a day is still just a fraction of protection needs. (These stats are from a court filing from yesterday, not CBP’s March data release.)