The U.S. Census Bureau began "Non-Responsive Follow-Up" Operations on May 1st with the 28% of households in the U.S. who did not return their questionnaire by mail. Census takers will visit a household several times in an effort to get the basic information on the ten questions on the 2010 Census.
When a census taker visits a home, he or she will try to collect the information by interviewing an adult member of the household. If a census taker cannot contact a household after repeated attempts, they will seek information in any way possible to estimate the number of people living in the home.
Dennis R. Johnson, Regional Director of the U.S. Census Bureau, stated, “I encourage the public to cooperate with census takers when they are working in your neighborhood. The 2010 Census is not yet completed and this work is vital to our efforts to get a complete and accurate count of everyone living in your community.”