The Proportional House — mapping the U.S. House under proportional representation.
Leaderboards of the state delegations that diverge most from a proportional result: the largest shifts toward Democrats, the largest shifts toward Republicans, and the most one-sided delegations in the country. Each state also has a static summary page under /state/.
This interactive site requires JavaScript. The data is public:
projection.json, the
v1 API, and static per-state pages under /state/.