​The chart book summarizes trends in health care for Black populations related to: trends over time (typically 2002 to 2013), disparities (usually contrasted with whites), changes in disparities over time, and achievable benchmarks. Authors used 2011 to 2013 California Health Interview Survey (CHIS) data for Blacks in charts that show adults with current diabetes by race and by income level. The CHIS data augment national data sources on diabetes management and outcomes that do not include some underserved populations, including Blacks.