Do Americans sort into more politically like-minded neighborhoods when they move?
Core argument: Republican movers chose neighborhoods Trump won by an average of 19 percentage points in 2020, while Democratic movers chose neighborhoods Biden won by 19 points; independents and unaffiliated voters picked more evenly balanced neighborhoods.
Across all movers, Republicans chose neighborhoods Donald J. Trump won by an average of 19 percentage points in 2020, while Democrats chose neighborhoods President Biden won by the opposite margin (also 19 points). In total, movers started in neighborhoods 31 percentage points apart; they ended in neighborhoods 38 points apart. Across the country, the result is a widening gap between blue neighborhoods and red ones. The independents and unaffiliated voters in our set picked more evenly balanced neighborhoods. The different choices that movers made are not easily explained by things like voters’ ages, race, income or if they were leaving a rural or urban area. Even when narrowing our comparisons to demographically similar pairs of people from the same kinds of neighborhoods Democrats and Republicans still chose neighborhoods that were 24 points apart in the 2020 vote. Our analysis suggests partisanship itself, intentional or not, plays a powerful role when Americans uproot and find a new home.

