Millions of households have received an invitation in the mail to complete the survey, and nationwide more than 20 percent of residents have done so. But there are many groups of people who won’t be counted this way. Some do not receive mail, some have no fixed address, or live in group settings. The Census staff who will be going into the field to count those communities are also practicing social distancing, so these counts have been delayed. Pamela Michael, a media specialist with the Census Bureau, lays out how the timelines have changed to protect the health of both enumerators and people who will be counted in person.