The U.S. Constitution requires a national census once every ten years. The census will show state population counts and determine representation in the U.S. House of Representatives. It is important to respond and be counted.
Census questionnaires will be delivered or mailed to households through the U.S. mail in March, 2010. Many households will receive a replacement questionnaire in early April. Census workers will also visit household that do not return questionnaires.
Census Day is April1, 2010. Questionnaire responses should represent the household as it exists on that day. More detailed socioeconomic information will be collected annually from a small percentage of the population through the American Community Survey.