Equal Representation Act This bill requires that the statement sent by the President to Congress after the decennial census indicating the number of persons in each state exclude noncitizens. (This statement is the basis for reapportionment of U.S. Representatives.) The bill also requires any questionnaire used in the decennial census to include a checkbox or other similar option for respondents to indicate whether the respondent and each household member is (1) a U.S. citizen, (2) a U.S. national but not a citizen, (3) a non-U.S. national ( alien under federal law) lawfully residing in the United States, or (4) a non-U.S. national unlawfully residing in the United States. The Department of Commerce must make public the number of persons in each state, disaggregated by each of these four categories.