The Migration Policy Institute’s National Center on Immigrant Integration Policy just released new, national, state-, and county-level data on the number, share, and linguistic diversity of Limited English Proficient (LEP) individuals in the United States.

According to MPI, 25.2 million individuals over the age of 5 in the United States (9% of the total population) have limited proficiency in English, compared with 14 million (6% of the total population) in 1990. Needles to say, this is good supporting data for those trying to make the case that more ESOL resources are needed for children, youth, and adults in the U.S.