Historical Data Explorer

State Partisan Trends

County and state presidential returns from 2000 through 2024, organized to show how each place moved over time, how far it diverged from the nation, and which states tracked their own statewide trend most closely.

Year

2000

2004

2008

2012

2016

2020

2024

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Mode

Map

Circles

Correlation

Correlation normalizes each state's movement against the national shift. A score of 100 indicates near-perfect alignment with nationwide change.

The overview page now loads the prebuilt state totals file directly, while individual state pages fetch their own shard for faster map and table rendering.

Coverage All 50 states, DC, and national totals across seven presidential elections.
Source MIT Election Lab county and state presidential results, rebuilt for 2024 and served from state-level shards.
Read It Switch years, compare map modes, or click a state to open the county-level version.

Historical Data Explorer

State Partisan Trends

Presidential vote movement from 2000 to 2024, with state-level trend lines and quick county drilldowns.

Year

2000

2004

2008

2012

2016

2020

2024

Mode

Map

Circles

Correlation

Go to state

Correlation compares each state's change to the national movement in the selected year.

Source MIT Election Lab presidential returns.
Use Tap a state on the map or use the selector below.