Americans overestimate the size of minority groups and underestimate the size of most majority groups

Estimated proportions are calculated by averaging weighted responses (ranging from 0% to 100%, rounded to the nearest whole percentage) to the question "If you had to guess, what percentage of American adults..." True proportions were drawn from a variety of sources, including the U.S. Census Bureau, the Bureau of Labor Statistics, and polls by YouGov and other polling firms.