California is the U.S. state that hosts the largest number of temporary migrant workers—nearly one-fifth: Resident nonimmigrant population by category of admission and state of residence, fiscal year 2019

Total Temporary workers Students Exchange visitors Diplomats and other representatives
State Number % Number % Number % Number % Number %
Total 3,190,000 100% 1,620,000 100% 1,100,000 100% 350,000 100% 130,000 100%
California 560,000 18% 300,000 19% 210,000 19% 50,000 14% 10,000 7%
New York 390,000 12% 160,000 10% 160,000 14% 50,000 14% 30,000 23%
Texas 250,000 8% 160,000 10% 60,000 6% 20,000 5% 10,000 5%
Florida 190,000 6% 110,000 7% 60,000 6% 20,000 4% 10,000 5%
Massachusetts 160,000 5% 50,000 3% 80,000 8% 30,000 8% 1%
New Jersey 140,000 4% 100,000 6% 30,000 3% 10,000 4% 2%
Illinois 140,000 4% 70,000 4% 50,000 5% 10,000 4% 1%
Washington 130,000 4% 80,000 5% 40,000 3% 10,000 2% 3%
Pennsylvania 100,000 3% 40,000 2% 50,000 4% 10,000 3% 1%
Michigan 100,000 3% 60,000 4% 30,000 3% 10,000 3% 0%

Note: Detail may not sum to total due to rounding; percentages are column percentages and were calculated prior to rounding; data include dependent family members. See report cited in source for the methodology used by the U.S. Department of Homeland Security to estimate the nonimmigrant population and for the list of temporary work visas that were included in the estimate. 

Source: Figure reproduced from Table 3 in Bryan Baker, Population Estimates of Nonimmigrants Residing in the United States: Fiscal Years 2017-2019, Office of Immigration Statistics, U.S. Department of Homeland Security, May 2021.

View the underlying data on epi.org.