US Counties can be used to build a US Map with any custom grouping of Counties using VitaraMap tools.
County grouping is done using the same tool used for ZipCode grouping.
Click on the link to access the tool:
VitaraMaps - Tool for merging counties
The below is screenshot of the tool.
After navigating to the webpage select the “US County Map” as shown in the image above.
To arrange counties based on column data, select a “Data” file (csv format) with at least two columns of data.
Fill “Group By” and “Apply Grouping To” fields to merge and export.
The sample below shows counties organized into states (approximate data for county and state categorization is utilized).
FIPS indicates the county code and related states in the image below.
Now using this data, merge tool fields can be filled as shown below.
Merge and Export to create a geojson shapefile with the specified grouping information.
The screenshot below is of a Vitara map chart made from a county map of the United States, sorted by state.