The Twenty-first United States Census was done by the Census Bureau. The population of the United Stateswas 248,709,873. This was an increase of 9.8 percent from the 1980 Census.
About 16 percent of households received a "long form" of the 1990 census. It had over 100 questions. It was the first census to have "Native Hawaiian and Other Pacific Islander" as a racial group separate from Asians. view more...