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Index/Topics/Demographic Models

Demographic Models

Methods and assumptions used in demographic models to estimate unauthorized immigrant populations

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2 results
Jan 26, 2026
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how many illegal aliens entered USA between 2001 and 2008

Available federal and academic estimates do not provide a single exact tally of undocumented entries for the narrow span 2001–2008, but the weight of published reporting shows that most unauthorized m...

Feb 2, 2026

In 2021 how many undocumented or illegals were in the USA

Official research estimates place the number of people living in the without authorization in 2021 at roughly between about , with prominent organizations reporting 10.5 million () and roughly 11.2–11...