Credit: Joel H. Suss, 2023, PLOS ONE, CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/)
US State and ZIP-level income inequality, 2014–18. US state-level income inequality (red dot) and within-state ZIP-level income inequality (black dots). Inequality is measured using the Gini coefficient of incomes and obtained from the American Community Survey, 2014–2018.