A growing number of organizations (including the Census Bureau) are producing census-based interactive maps that allow users to choose the level of geography, topic or time period they want to display. This All Things Census posting includes links to maps using data from the 2010 Census, as well as earlier census data.
People who turn to the Census Bureau’s latest data release in an effort to answer Sesame Street’s musical query may, in some cases, be puzzled by what they find.