The estimated population of unauthorized immigrants in the U.S. stands at around 11 million people. Although the number has stabilized, the United States has seen a spike in migrant encounters in the last few years, with over two million cases registered by the U.S. Border Patrol in 2023. This is a slight decrease from the previous year, when there were over 2.2 million cases registered. Due to its proximity and shared border, Mexico remains the leading country of origin for most undocumented immigrants in the U.S., with California and Texas being home to the majority.
Between 1990 and February 2020, the U.S. Border Patrol counted "apprehensions" and "expulsions" separately. As of March 2020, the U.S. Border Patrol changed its methodology to include both apprehensions and expulsions as "encounters."
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US Customs and Border Protection. (February 14, 2024). Apprehensions and expulsions registered by the United States Border Patrol from the 1990 fiscal year to the 2023 fiscal year [Graph]. In Statista. Retrieved October 06, 2024, from https://www.statista.com/statistics/329256/alien-apprehensions-registered-by-the-us-border-patrol/
US Customs and Border Protection. "Apprehensions and expulsions registered by the United States Border Patrol from the 1990 fiscal year to the 2023 fiscal year." Chart. February 14, 2024. Statista. Accessed October 06, 2024. https://www.statista.com/statistics/329256/alien-apprehensions-registered-by-the-us-border-patrol/
US Customs and Border Protection. (2024). Apprehensions and expulsions registered by the United States Border Patrol from the 1990 fiscal year to the 2023 fiscal year. Statista. Statista Inc.. Accessed: October 06, 2024. https://www.statista.com/statistics/329256/alien-apprehensions-registered-by-the-us-border-patrol/
US Customs and Border Protection. "Apprehensions and Expulsions Registered by The United States Border Patrol from The 1990 Fiscal Year to The 2023 Fiscal Year." Statista, Statista Inc., 14 Feb 2024, https://www.statista.com/statistics/329256/alien-apprehensions-registered-by-the-us-border-patrol/
US Customs and Border Protection, Apprehensions and expulsions registered by the United States Border Patrol from the 1990 fiscal year to the 2023 fiscal year Statista, https://www.statista.com/statistics/329256/alien-apprehensions-registered-by-the-us-border-patrol/ (last visited October 06, 2024)
Apprehensions and expulsions registered by the United States Border Patrol from the 1990 fiscal year to the 2023 fiscal year [Graph], US Customs and Border Protection, February 14, 2024. [Online]. Available: https://www.statista.com/statistics/329256/alien-apprehensions-registered-by-the-us-border-patrol/