Where Can I Download GeoJSON Data?

You can download GeoJSON data from several platforms that offer geospatial data in that format, or where you can convert other GIS data formats (e.g., Shapefiles or KML) into GeoJSON. Here are some sources specifically for GeoJSON data:

1. OpenStreetMap (OSM)

OpenStreetMap (OSM) is a collaborative, open-source project that creates and provides freely accessible geographic data and mapping information. It is often referred to as the Wikipedia of maps, as it is built by a global community of contributors who add and edit map data. OSM offers an alternative to proprietary mapping services like Google Maps, providing open, editable map data that anyone can use, modify, and share.

Overpass Turbo: overpass turbo

is an interactive web-based tool for querying and downloading OpenStreetMap (OSM) data using the Overpass API. It allows you to extract specific subsets of OSM data (such as highways, buildings, parks, etc.) based on your area of interest and custom query parameters. It’s useful for extracting smaller datasets without having to download the entire OSM planet file.

• Geofabrik: https://download.geofabrik.de/
  • Geofabrik provides OpenStreetMap (OSM) data in various formats, including GeoJSON for countries and regions. You can extract specific layers like roads, buildings, or points of interest.
• Mapzen (for historical OSM data): https://mapzen.com/ (Note: Mapzen is now archived, but community versions of data are still available)

2. Natural Earth

• Natural Earth: https://www.naturalearthdata.com/
  • Natural Earth offers a variety of public domain datasets in GeoJSON format. These include country boundaries, population data, and physical geography at multiple scales.

3. GitHub Repositories

• Many open-source projects and community-contributed datasets are available on GitHub in GeoJSON format. Some examples include:
  • GeoJSON.io: https://github.com/jasonjoseph/geojson.io
  • Awesome GeoJSON: https://github.com/tmcw/awesome-geojson
  • These repositories offer a variety of GeoJSON datasets ranging from country boundaries to urban infrastructure and environmental data.

4. Datahub.io

• Datahub.io: https://datahub.io/
  • A platform offering datasets in various formats, including GeoJSON. Many datasets on urban planning, transportation, and environmental monitoring are available in GeoJSON format.

5. Mapbox Datasets

• Mapbox: https://www.mapbox.com/
  • Mapbox offers GeoJSON datasets for mapping applications and a variety of geospatial layers. The Mapbox Studio allows users to upload and manage GeoJSON data for custom map styling.

6. Open Data Portals

• US Government Data (Data.gov): https://www.data.gov/
  • Many datasets from the U.S. government are available in GeoJSON format, particularly for demographic, environmental, and transportation data.
• European Union Open Data Portal: https://data.europa.eu/euodp/en/home
  • Offers GeoJSON data on various topics like environmental data, infrastructure, and population statistics across the EU.

7. Humanitarian Data Exchange (HDX)

• HDX: https://data.humdata.org/
  • Provides open data for humanitarian work, including GeoJSON datasets related to population, infrastructure, and disaster relief efforts.

8. OpenTopography

• OpenTopography: https://opentopography.org/
  • Offers elevation data, including LiDAR data, which can be converted into GeoJSON format for use in mapping applications.

9. MapTiler

• MapTiler Cloud: https://cloud.maptiler.com/
  • MapTiler offers tools to convert data to GeoJSON and provides access to datasets, including geographic boundaries and topographic data.

10. Convert Existing Data to GeoJSON

• QGIS: A popular open-source GIS tool that can import a variety of GIS data formats (e.g., Shapefiles, KML, GML) and export them to GeoJSON. You can use QGIS to convert data into GeoJSON for use in your projects.
• GeoJSON.io: http://geojson.io/
  • A simple online tool for creating and editing GeoJSON files. You can upload shapefiles or other GIS data formats and convert them to GeoJSON easily.

11. ArcGIS Online (Esri)

• ArcGIS Online: https://www.arcgis.com/home/
  • Esri’s ArcGIS platform offers GeoJSON data on topics such as urban planning, environmental monitoring, and more. Many datasets can be downloaded as GeoJSON or converted into that format.

12. GeoJSON Data Sources

• GeoJSON.io (Library): https://geojson.io/
  • GeoJSON.io is a simple and interactive tool for visualizing and creating GeoJSON data. It allows users to upload and share GeoJSON datasets.

13. Other Specialized Sites

• Geospatial Data Abstraction Library (GDAL): https://gdal.org/
  • GDAL is a translator library for raster and vector data formats. You can use GDAL to convert multiple GIS data formats to GeoJSON.

These sources provide a wide range of GeoJSON datasets for different purposes, including mapping, analysis, environmental studies, urban planning, and more. You can use tools like QGIS, Mapbox, or GeoJSON.io to view, manipulate, and convert GIS data into GeoJSON format as needed.