Analysis of information sources in references of the Wikipedia article "Company town" in English language version.
Company towns like Cananea, El Boleo, Nacozari, Navojoa, Copola, Concordia, Santa Eulalia, Santa Rosalia, Batopilas, and Esperanzas sprang from virtual wilderness into thriving mining camps within a few years. American employers believed that company housing—albeit segregated, with Americans living apart from the Mexican labor force—was necessary to attract and control labor.
Company towns like Cananea, El Boleo, Nacozari, Navojoa, Copola, Concordia, Santa Eulalia, Santa Rosalia, Batopilas, and Esperanzas sprang from virtual wilderness into thriving mining camps within a few years. American employers believed that company housing—albeit segregated, with Americans living apart from the Mexican labor force—was necessary to attract and control labor.
At their height more than 2,500 such towns were housing 3% of the population.