Politics influence where Americans live, but housing drives most moves

Americans do sort themselves politically, but the move that gets blamed on ideology is usually a bargain with housing prices, family ties and safety. The Census Bureau’s own migration data show that in 2022, housing-related reasons accounted for 41.6% of movers, far ahead of family-related reasons at 26.5% and neighborhood improvement or less crime at 4.7%.

That matters because the state-to-state flow tables researchers use to track who leaves California, Connecticut or Washington, D.C. and where they land go back to the 2005 American Community Survey. Over that long run, the picture is not just a red-state, blue-state map turning into a tribal sorting chart. It is also a map of people chasing cheaper rent, better schools, safer streets and jobs that fit their budgets and their lives.

Politics still shapes those choices. A 2024 Realtor.com survey found that 23% of Americans said local and national politics highly influence where they live, and 17% said they had considered moving because their views do not match most people in their area. Among millennials, that share rose to 33%. Yet the same survey found that only 38% of Americans said their political views align with the majority where they live, and when respondents looked back on their most recent move, 14% said they moved to a more politically aligned area, compared with 8% who moved to a less aligned one.

That pattern suggests ideology matters, but often as one factor among many rather than the sole driver. For many households, the practical pressures are more immediate: the cost of a mortgage, the quality of local schools, taxes, commute times and whether a neighborhood feels safe enough to stay in. Those considerations help explain why a move can carry political consequences without being caused primarily by politics.

The research also shows that sorting is not confined to simple age, race or income lines. One National Bureau of Economic Research study found that homes exposed to sea level rise were increasingly more likely to be owned by Republicans and less likely to be owned by Democrats. In moderately exposed properties, the partisan residency gap topped 5 percentage points and more than doubled over six years.

Another NBER study, using county-level election data from 1990 to 2010, found that high-skilled immigration reduced the Republican vote share, while low-skilled immigration increased it, especially in low-skilled and non-urban counties. And a 2024 study using General Social Survey and American National Election Studies data found that partisan sorting has increased across long-standing and emerging issues, even as ideological divergence has not. The shift, the study concluded, has come more from change within generations than from generations replacing one another.