Rising salaries and government aid turned millions of Mexicans into homeowners. That, in turn, has created more suburbs.

But now, many of those neighborhoods are falling into disrepair, and people are leaving. There are about 600,000 abandoned homes across Mexico, 50,000 just across the border in Tijuana.

From the Fronteras Desk, Jill Replogle explores why Mexicans are fleeing the suburbs.