It started, as most GIS projects do, with a deadline and a blank map. I needed the most detailed administrative boundaries available for a project focusing on rural development in Southeast Asia. I didn't just need country outlines; I needed the deep cuts—districts, municipalities, the level 2 and level 3 boundaries that make a map truly useful.
Once downloaded, you need to import and optimize the data. Here is how to work with it in the two most popular GIS platforms. Working in QGIS
Use the attribute fields ( NAME_0 , NAME_1 , NAME_2 ) to easily query, dissolve, or filter specific regions. If you want to customize your workflow, please let me know: Which GIS software or programming language you plan to use? The specific country or region you are analyzing? download gadm data version 36 work
The traditional format consisting of a cluster of files ( .shp , .dbf , .shx ). Best for older software versions. KMZ: Ideal for quick visualization in Google Earth.
The official GADM website prioritizes its latest release on the main download page. To access Version 3.6, you must navigate to the legacy data section. 1. Access the Country Download Page It started, as most GIS projects do, with
This is the most efficient method for most users because global files are extremely large and resource-intensive. GADM Country Download (v3.6)
The official source is gadm.org . However, the download interface changed after version 3.6. Here is how to get specifically. Once downloaded, you need to import and optimize the data
GADM 3.6 data is available in several formats. Choose the one that matches your software:
The traditional format. It consists of a zipped group of files. It is highly compatible but has a 2GB size limit per file.