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I have a list of place names (300+), which are mostly cites and states/provinces in United States and Canada. I would like to get the administrative boundary for them. I know the raw boundary data is downloadable from the government website but I wonder if there is any convenient service to search and download using API or a UI.

  • Does openstreetmap.org not have this? – Barry Carter Nov 11 '16 at 4:49
  • @BarryCarter I have tested a few places. Not all of them have the administrative boundary added in OSM. – Haoliang Yu Nov 11 '16 at 5:31
  • You can get Canadian boundary files from www12.statcan.gc.ca/census-recensement/2011/geo/bound-limit/… I did a comparison between this and gadm.com below and the ones from statcan seem to be a bit more detailed. I believe you can also use statcan data commercially. – ge0m3try Nov 14 '16 at 18:29
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Your best bet for up-to-date boundary files at the provincial/state and municipal/county level for the world is the Global Administrative Boundaries Project. Unless you're looking for a specific Canadian/American boundary type (Economic Regions, Special Counties?) this data set should be fine. All data can be downloaded directly through their website.

Alternatively, if you're working in R, the 'sp' package fully integrates the GADM data, offering an API-like method for downloading and presenting the data. More info on how to do that can be found in the GIS SE (e.g. https://stackoverflow.com/a/30024321)

  • I wasn't aware of this very comprehensive dataset. Also thank you for mentioning the R package. It's of great help. – Haoliang Yu Nov 11 '16 at 1:29

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