We used data from the Integrated Public Use Microdata Samples to document poverty rates among native-born and foreign-born Mexicans living in the southwest and in new regions where many Mexican families have resettled. Our analysis focused on how changing patterns of employment have altered the risk of poverty among Mexican families and children. We demonstrate that the Mexican population dispersed widely throughout the United States during the 1990s and that Mexican workers, especially immigrants, residing outside the southwest had much lower rates of poverty. Yet, a rapid influx of Mexican immigrants is putting strain on communities struggling to meet their needs. We offer suggestions for family practitioners serving Mexican newcomers, whose circumstances differ greatly from those of local populations.