Final answer:
The state with the largest number of households according to Census 2000 was California, which was documented by the U.S. Census Bureau.
Step-by-step explanation:
According to Census 2000, the state with the largest number of households was California. The U.S. Census Bureau conducts extensive surveys and tabulations to provide demographic data, such as the count of households in states, growth in same-sex couple households, and unemployment rates based on the Current Population Survey (CPS). The data collected helps in understanding trends and changes in the population and economy of the United States over time.