The next census is not until 2020, but the U.S. Census Bureau says a census worker may be knocking on your door in the next few weeks. About 40,000 Census Bureau employees carrying laptops and black messenger bags, are visiting areas through October in an effort to verify over 50 million addresses, or about one-third of all home addresses in the United States. They will be out mostly in the evenings and on the weekends. Employees will introduce themselves as a Census Bureau employee, show their official government ID badge, and explain the purpose of the visit which is to verify the address and any additional living quarters on the property for inclusion in the census.