Social Explorer allows you to create maps and reports using the US Census (1790 to 2010), American Community Survey (2005 to 2018), and other sources.
PolicyMap - Create tables, reports, and maps (with up to three data layers). Access over 15K indicators from more than 150 authoritative public and proprietary sources covering demographics, education, housing, health, labor and more.. Create a personal account in order to save work. (PennKey)
To add / create Map Boundaries
Click on the button at the bottom of the screen, select tracts, or zip codes, or school districts to display these lines.
You can make custom boundaries, such as for catchment areas. Click at page bottom. Option include to draw a boundary, use a radius from a point, or combine existing boundaries.