A MultiPolygon is a spatial geometry that represents a single logical area composed of multiple polygons — useful for places that aren't contiguous, like a municipality that includes islands. It's a standard type in PostGIS and the GeoJSON specification.
Neighbourly stores boundary geometries as MultiPolygons in SRID 4326 (standard latitude/longitude), with pre-computed simplified versions at several levels of detail for fast rendering.
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MultiPolygon is part of the Neighbourly data platform. Explore the API or browse the data layers.