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Index/Topics/American Community Survey (ACS) data usage

American Community Survey (ACS) data usage

Usage of American Community Survey data by MPI and Pew for estimating unauthorized immigrant population

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Jan 31, 2026

How do MPI and Pew estimate state unauthorized populations differently and which is more conservative?

and both rely on a variant of the “residual” method—subtracting an estimated legally resident foreign‑born population from the total foreign‑born count in surveys—but they implement that approach diff...

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