Nearly 25 percent of Americans are first or second generation, according to the Census Bureau. The bureau defines "first generation" as the foreign born, "second generation" as those with at least one foreign-born parent, and "third generation" as those with two native-born parents. Here's how the U.S. population splits by generation...
Generational status of U.S. population
12.9% first generation
11.7% second generation
75.4% third-or-higher generation
Among non-Hispanics, 84 percent are third-or-higher generation. In contrast, Hispanics are almost evenly split by generation...
Generational status of Hispanic population
34.9% first generation
31.5% second generation
33.6% third-or-higher generation
The report examines the demographics of the generations, including educational attainment, labor force status, income and earnings, homeownership, and voting.
Source: Census Bureau, Characteristics of the U.S. Population by Generational Status: 2013