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Full US legislative coverage in Mapbox Boundaries

Analyze data and returns at multiple levels with updated geometries and metadata for states, congressional districts, counties, and state legislative districts.

Blue states, red counties, swing districts. Election maps rely on boundaries to quickly synthesize and translate complex election data. Whether counting vote totals or analyzing electoral shifts, interpreting the data relies on aggregating it by geographic areas.

Mapbox Boundaries features a collection of legislative boundaries that include four different levels of US electoral boundaries including Congressional districts, State Senate, and State Representative. Learn how to build with Boundaries to analyze data and returns at multiple levels.

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