The U.S. Census Bureau produced four choropleth maps entitled Race and Hispanic Origin Population Density of the United States: 1990 as part of the GE-90 map series (GE-90 No. 6). The four map themes are: American Indian, Eskimo, and Aleut Persons; Asian and Pacific Islander Persons; Black Persons; and Hispanic Origin Persons. Each map portrays the Race or Hispanic Origin population by county as a percentage of the total population. The maps are displayed in four distinct color schemes on one sheet which measures 19" x 22".