There's an estimated 1 million Americans living and working in Mexico.
http://news.newamericamedia.org/news/view_article.html?article_id=453c86803c12894d7fd5a9ebd1814b15American Immigrants Flooding Mexico?
SAN DIEGO -- There is a big immigration problem that has been growing year after year. An increasing number of American citizens are moving to Mexico, and some of them are even becoming undocumented workers. Even worse, they are refusing to assimilate and are even insisting on retaining their U.S. citizenship.
The assimilation problem hasn’t gotten any better either. In a recent article entitled “Illegal Gringos,” the Los Angeles Times reported that San Miguel de Allende, Mexico, has many retired baby boomers moving into town, a number of whom are performing work without a permit or license. It’s obvious that they’re not even bothering to learn Spanish because there is an expatriate newspaper oriented toward them that is written in English. Yes, you read that right — a local English-language newspaper in the heart of Mexico for Americans living there!
There are undoubtedly some people who are condemning all this as something despicable, perhaps even immoral. “I think it’s horrible that they’ve retained allegiance to the United States,” they no doubt are saying. “They should become Mexican citizens. Why aren’t they assimilating? Why aren’t they learning Spanish? They’re taking jobs away from Mexicans. They’re still flying the American flag, and they’re singing the Star Spangled Banner. They’re celebrating the Fourth of July more than the Cinco de Mayo. Worst of all, they’re actually rooting for American sports teams rather than Mexican ones. Something needs to be done about these people!”