Nine percent of 2023 births to nonpermanent mothers

Pew Research estimates about 9% of babies born in the U.S. in 2023 had mothers who were either unauthorized immigrants or held temporary legal status. The finding is grounded in Census Bureau survey-based estimates adjusted to national birth totals and is presented ahead of Supreme Court arguments over a Trump order that would restrict birthright citizenship for such children. — This measurable share matters because it quantifies who would be directly affected by changes to birthright citizenship and fuels policy, legal, and political debates over immigration, public services, and national identity.