Educational attainment - Ed attain, 1990-2000 Educational attainment (1) To resort data: click column headings. To download data: click here. County Name No High School Diploma Rank No High School Diploma High School Graduate (includes equivalency) Source: 1990: U.S. Bureau of the Census, Census of Population and Housing, (https://www.census.gov/programs-surveys/decennial-census/data/tables.1990.List_1115666347.html); 2000: U.S. Bureau of the Census, Demographic Profiles, (https://data.census.gov/cedsci/advanced); DATE LAST UPDATED: October 29, 2008.