This dataset focuses on mortgages that are 90 or more days delinquent at the county level across the United States, spanning from January 2008 to December 2021. Mortgages that are 90 or more days delinquent refer to loans secured by real estate (typically homes) where borrowers have not made their mortgage payments for at least 90 days or more. Understanding these delinquencies is crucial for assessing the financial health of homeowners and the housing market within various regions, aiding in economic analysis and policy formulation.