Why might you want to use a custom boundary?
Although mySidewalk gives you access to 16 levels of geography from within the platform (everything from the nation down to census block groups), there might be times when a custom boundary could better represent your area of focus. Examples of custom boundaries include downtowns, entertainment districts, transportation corridors, hospital service areas, fire districts, and more.
This in-depth video covers how to upload or create your own custom boundaries that can be used in maps and other data visualizations.