GEOJSON File Documentation

Overview

Feature Value
File Extension .geojson
MIME Type application/geo+json
Data Type Text
Primary Use Geospatial Data Representation
Root Object One of the GeoJSON Objects: FeatureCollection, Feature, Geometry
Supported Geometries Point, LineString, Polygon, MultiPoint, MultiLineString, MultiPolygon, and GeometryCollection
Encoding UTF-8
Coordinate Reference System WGS 84
Coordinate Precision Arbitrary, commonly uses decimal degrees
Bounding Box Support Yes
CRS Specification Deprecated in GeoJSON standard, assumed to be EPSG:4326
Interoperability High with GIS software and web mapping technologies
Pros Human-readable, simple, straightforward structure
Cons File size can be large; no support for topology
Can Store Properties Yes, each Feature can have a properties object
Multi-dimension Support Yes, including elevation or time in coordinates array
GeoJSON Object Types FeatureCollection, Feature, Point, LineString, Polygon, MultiPoint, MultiLineString, MultiPolygon, GeometryCollection
Applications Web mapping, GIS platforms, geospatial data manipulation
Associated APIs Leaflet, Google Maps API, Mapbox GL JS
Community and Support Strong community and wide range of libraries