Inequality is the highest in the United States among the developed countries. According to data released by Census Bureau released in September income inequality grew in the US in 2021 for the first time in a decade. Income and Wealth inequality is usually higher in emerging and frontier countries. However similar situation has been prevalent in the US as well for years.
The following chart shows how wide the gap is between the rich and the working and poor class in terms of income and wealth:
Click to enlarge
The chart below shows a comparison of inequality among select countries:
Click to enlarge
Source: Hoarding billionaires stunting global growth by Fatema Z Sumar, Asia Times