Not sure how people measure integration, but,

"June, 2015 - migrationpolicy.org - The Los Angeles Unified School District had the largest ELL population, with 152,592 students, closely followed by New York City with 142,572 students.

Regarding United States laws and educating students, "Oct, 2015, Ed Dept. to Schools: You Must Teach All Students, Regardless Of Legal Status... all students are legally entitled to education in the United States... 65,000 undocumented students graduate high school each year.](https://www.theatlantic.com/politics/archive/2015/10/ed-dept-to-schools-you-must-teach-all-students-regardless-of-legal-status/433185/)

That's 300,000 ELL students in two cities. Not all ELL students are from Mexico, but the majority are, given the geographic proximity. I searched for the same information regarding undocumented students from any country attending schools in Mexico, but cannot find any. If anyone has that information, would you share it, to compare the United States and Mexico's attempts at integration?