Admin boundaries

This is a collection of administrative boundaries compiled from various sources including: GADM, GeoBoundaries, and UN sources.¹ Our purpose is to make this data readily available to use in web applications.

Administrative boundaries are organized by:

• Country (ISO 3166 Alpha 3)
• Levels of granularity (i.e ADM 0-4)
• Data formats (.geojson, .shp, .csv)

¹ The main source of data is from Runfola, D., Seitz, L., Hobbs, L., Panginaban, J., Oberman, R. et al. geoBoundaries Global Administrative Database. http://www.geoboundaries.org.

How the data is organized

The collection uses the following folder structure:

• [3-LETTER-ISO-CODE]
  • [ADM-LEVEL]
    • [FILE-FORMAT]

In order for Hikaya applications to locate the file and render it within its applications, the following file format must be used:

[3-LETTER-ISO-CODE]-[ADM-LEVEL].geojson

Example: AFG-ADM0.geojson

Example:

• [AFG]
  • [ADM0]
    • .geojson
    • .shp
    • .csv
    • .txt
  • [ADM1]
  • [ADM2]
  • [ADM3]

Roadmap

In the future, we plan to add the following:

• Add support for UN P-Code (placecode)
• Integration with original source to refresh with any updates
• Provide a map preview when exploring administrative boundaries