Last updated on: 1/30/2017 | Author:

1980 – Census Estimates 2 to 4 Million Immigrants in the United States Illegally with about Half from Mexico

“[T]he undocumented Mexican population in 1980 was in the 1-2 million range, with the total number from all countries falling in the range of 2-4 million… Of the undocumented present and counted in 1980, 941,000 entered during 1975-1980; 576,000 entered during 1970-1974; and 540,000 entered before 1970… Finally, the estimates for 1980 show a high proportion of recent arrivals, and very few who entered the United States prior to 1960.”