Economic Inequality Trends

Economic inequality in America has reached historic highs, with the richest 1% earning over 20% of national income and the top 10% controlling nearly two-thirds of total wealth as of early 2025. Slow wage growth since 2000 has been the primary driver, outpacing all other income sources and widening gaps despite government transfers propping up lower-income households. This section unpacks the trends, from income disparities where the top 0.01% saw 1,003% cumulative growth since 1979 compared to 132% for the bottom 20%, to policy debates shaping opportunity for all.

Income vs. Wealth Inequality

Income inequality reflects annual earnings, while wealth inequality captures accumulated assets; the latter has surged dramatically. Learn more in Income vs. Wealth Inequality: What Every American Should Know, which explains how these measures reveal different facets of America’s divide and the role of taxes and transfers.

Key Drivers: Wages, Taxes, and Unions

Declining union power, from over 30% workforce representation in the 1950s to 10.1% in 2022, alongside tax cuts reducing the top marginal rate from 70% to 37%, has fueled the rise. CEO-to-worker pay ratios have exploded, and racial earnings gaps persist, with white workers earning 24% more than Black workers. Explore how 80 years of changing US tax policy have reshaped American wealth and related debates on capital gains taxes or increasing the minimum wage.

Middle-Class Squeeze

The middle class has shrunk over five decades amid stagnant wages, with growing reliance on transfers for the bottom 50%. See The Shrinking Middle Class: Government Data Reveals Five Decades of Economic Squeeze for the data.