Population Estimates

In addition to flow reports which analyze populations changing status due to administrative immigration events such as naturalizations or grants of lawful permanent residence, the Office of Immigration Statistics occasionally publishes population estimates of a particular subgroup. Population estimates take information on immigration flows and may combine it with other counts or estimates, such as those in the U.S. Census Bureau’s American Community Survey (ACS), as well as demographic life expectancy tables to give an idea of population size and characteristics in a given year. Terminology, data sources, and methodology may have shifted over time. Current series include population estimates for unauthorized immigrants, nonimmigrant residents, and lawful permanent residents.

• Estimates of the Lawful Permanent Resident Population in the U.S.
• Nonimmigrants Residing in the U.S.
• Estimates of the Unauthorized Immigrant Population Residing in the U.S.