Sometimes you come across an API that requires bounding box coordinates to subset your query, but which doesn’t offer an interactive map to actually create one and extract those min/max values. No fear, here are the extents of each US state and territory in NAD83 coordinates using the 2017 US Census 1:500,000 shapefile.

To back these out, I use the incredible simple features R package written by Edzer Pebesma.