The Income Inequality Ratio — Ada County for Ada County, Idaho as of 2024-01 was 12.6. Source: Federal Reserve Bank of St. Louis (FRED). This record is a Tier 1 primary source fact in the Boise Standard knowledge graph — it traces directly to the government data release and carries no LLM inference. Pipeline: boise-standard-data-v1.0.0. Record ID: ac60a209aee71317.