Users should be aware that GADM data represents administrative boundaries as they were captured from various sources. It may not reflect the most current political changes or official governmental claims. In particular, the Chinese documentation for GADM warns that the country’s national boundaries provided by GADM do not align with the official claims of the People‘s Republic of China, and caution should be used when publishing maps that include these areas. Always cross-reference GADM data with official sources for any publication requiring legal or diplomatic precision.
The underlying data files are physically stored at UC Davis. If the main website is slow, you can construct or use these direct links, which point to the raw .zip archives:
GADM version 3.6 data is available in several widely supported geospatial formats:
To convert a Shapefile to a GMT-compatible file: download gadm data version 36 work
If using the Geopackage format, expand the .gpkg database to view the individual level layers.
Utilize the Geopandas library to read shapefiles and visualize them using Matplotlib.
Ideal if you only need boundaries for a specific nation. It reduces file sizes and speeds up processing time. Users should be aware that GADM data represents
Look for the link (or historical data repository) to locate Version 3.6. Select your target country from the dropdown menu. Choose your preferred file format and click download. Method B: Global Database Download
: GeoPackage (.gpkg), Shapefile, KMZ (for Google Earth), and RData (for R spatial objects). Recommended Research Papers
Version 3.6 supports several standard spatial data formats to ensure it works across different software environments: Always cross-reference GADM data with official sources for
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Captures intricate coastline details and small administrative units. Consistency: Standardizes coding across different nations.