| country.map | A world map |
| country.regions | Names of all regions on the country.map data.frame. A data.frame that includes both English names and their iso2c equivalents. |
| county.map | Map of the counties of each of the 50 US states plus the district of columbia. |
| county.regions | A data.frame consisting of the name of each region in the map county.map as well as their FIPS codes and state names. |
| state.map | Map of the 50 US states plus the district of columbia. |
| state.regions | A data.frame consisting of each region on the map state.map plus their postal code abbreviations and FIPS codes. |