All U.S. population growth in 2022-23 was attributed solely to immigration, marking the first occurrence of this trend since 1850, according to a report from the Migration Policy Institute (MPI) released on March 12, 2025. The analysis revealed that the immigrant population grew by 1.6 million people during this period, reaching a record high of 47.8 million.
- Immigration drove U.S. population growth in 2022-23
- Birth rates reached historic lows in 2023
- Immigrant population hit record high of 47.8 million
- Foreign-born percentage slightly below 1890 levels
- Majority of immigrants are legally present
- Ongoing immigration policy changes under the Trump administration
The MPI’s findings indicate that the foreign-born segment now constitutes 14.3% of the U.S. population, slightly below the historical peak of 14.8% recorded in 1890. Nearly three-quarters (73%) of these immigrants are legally present in the country, and almost half have obtained naturalized citizenship.
Key statistics include:
- The immigrant population increased by approximately 3.6%, representing the largest annual growth rate since 2010.
- The fertility rate dropped to a historic low of 54.5 births per 1,000 females aged 15-44 in 2023.
- U.S. birth rates fell by about 2% from the previous year.
The Census Bureau has tracked nativity data since its inception in 1850 when immigrants made up just over ten percent of the U.S. population at that time. Current immigration policies are under scrutiny as shifts continue amid various legislative changes aimed at both legal and illegal immigration pathways.
This significant reliance on immigration for population growth highlights changing demographics within the united states and reflects broader global migration patterns influenced by various socio-economic factors.
