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1. After a Decade of Decline, the US Undocumented Population Increased by 650,000 in 2022

Author:
Robert Warren
Publication Date:
06-2024
Content Type:
Journal Article
Journal:
Journal on Migration and Human Security
Institution:
Center for Migration Studies of New York
Abstract:
This report describes estimates of the undocumented population residing in the United States in 2022 compiled by the Center for Migration Studies of New York (CMS). The estimates are based on data collected in the American Community Survey (ACS) conducted by the US Census Bureau (Ruggles et al. 2023). The report finds that the undocumented population grew from 10.3 million in 2021 to 10.9 million in 2022, an increase of 650,000. The increase reverses more than a decade of gradual decline. The undocumented populations from 10 countries increased by a total of 525,000: Mexico, the Dominican Republic, and India; El Salvador, Guatemala, and Honduras in Central America; and Brazil, Colombia, Ecuador, and Venezuela in South America. The undocumented population in Florida increased by about 125,000 in 2022, Texas increased by 60,000, New York by 50,000, and Maryland by 45,000. The report explains why undocumented population growth is much less than the number of apprehensions by DHS. Finally, the Appendix provides a detailed description of the CMS methodology. • After remaining at or near zero growth from 2010 to 2021 (Warren 2023), the US undocumented population increased by 650,000 in 2022. • The largest population gains in 2022 were for Central America (205,000), South America (200,000), and Asia (140,000). • From 2015 to 2022, the undocumented population from Mexico declined by 1.3 million; in the same period, the combined population from Central and South America increased by 1.2 million. • The undocumented population from Asia declined by 115,000 from 2015 to 2021 and then increased by 140,000 in 2022. • California, Texas, Florida, New York, and New Jersey had the largest undocumented populations in 2022. The total population in those five states increased by 300,000 in 2022. • The combined undocumented population from El Salvador, Guatemala, and Honduras was undercounted by almost 400,000 in 2022. Correcting this data accounted for more than half the estimated increase in the undocumented population in 2022.
Topic:
Survey, Undocumented Population, and Irregular Migration
Political Geography:
North America and United States of America

2. 2020 American Community Survey: Use with Caution, An Analysis of the Undercount in the 2020 ACS Data Used to Derive Estimates of the Undocumented Population

Author:
Robert Warren
Publication Date:
07-2022
Content Type:
Journal Article
Journal:
Journal on Migration and Human Security
Institution:
Center for Migration Studies of New York
Abstract:
This paper analyzes and provides estimates of the undercount of the foreign-born in the US Census Bureau’s 2020 American Community Survey (ACS). It confirms that a differential undercount occurred in the 2020 ACS. In particular, noncitizens that arrived from Central American countries after 1981 had undercount rates of 15–25 percent, but undercount of noncitizens that arrived from European countries in the same period was not detectable by the methods described in this paper. The Center for Migration Studies of New York (CMS) and others use ACS data to derive annual estimates of the US undocumented population. The Census Bureau recently reported that the total population count for the 2020 Census was consistent with the count for recent censuses, despite the Covid-19 pandemic and the Trump administration’s interference in the 2020 Census. Nonetheless, the accuracy of 2020 ACS data for the noncitizen population that arrived after 1981 remains a major concern given the fear generated by the Trump administration’s abusive rhetoric and anti-immigrant policies. The estimates set forth in this paper were derived by analyzing trends in annual ACS data for 2016–2020 compiled from the IPUMS website (Ruggles et al. 2021). Decennial census data cannot be used for this purpose because data on country of birth, citizenship, and year of immigration are not collected in the census. However, it is reasonable to believe that the 2020 census and the 2020 ACS experienced similar challenges because they were conducted under comparable conditions. The patterns of undercount of noncitizens described here for the 2020 ACS are likely mirrored in the 2020 census and will reduce federal funding and representation to affected cities and states for the next decade.
Topic:
Migration, Border Control, Survey, and Undocumented Population
Political Geography:
North America and United States of America