This dataset focuses on mortgages that are 30–89 days delinquent at the county level across the United States, covering the period from January 2008 to March 2018. Mortgages within this category represent home loans that are past due within a specific timeframe, specifically between 30 and 89 days behind schedule on payments. Understanding these delinquencies is crucial for assessing the financial health of homeowners and the housing market within different regions, providing valuable insights for economic analysis and policy formulation.