These estimates of unauthorized immigrant populations in 182 metropolitan areas were derived from a sample of census data, so they have a margin of error. The margins of error are included here as a rough guide to the possible range of the estimates. For example, the estimate of 25,000 for Albuquerque could range from 15,000 to 35,000.
Unauthorized immigrants include people who either crossed the border illegally or overstayed their visas. For more, read “20 metro areas are home to six-in-ten unauthorized immigrants in U.S.” Additional notes can be found at the bottom of the table.
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