Congressional Districts and Members

Congressional and State Legislative District Boundaries

The Princeton Gerrymandering Project
The Princeton Gerrymandering Project does nonpartisan analysis to understand and eliminate partisan gerrymandering at a state-by-state level.
Ballotopedia State-by-State Redistricting Procedures
Ballotpedia is an online encyclopedia of American politics and elections
Spotlight PA Redistictring
The latest on redistricting in Pennsylvania
Fair Districts PA
Fair Districts PA is a nonpartisan, statewide coalition of organizations and individuals working to create a process for redistricting that is transparent, impartial, and fair.
The Atlas Of Redistricting
Web site fivethiryeight on current and speculative maps for better representation with data.
3 Books Explain Why the Supreme Court’s Stance on Gerrymandering Matters
New York Times 2018 recommendations