countypop               Population estimates (2015), county level
countypov               Poverty percentage estimates (2014), county
                        level
fips                    Retrieve FIPS code for either a US state or
                        county
fips_info               Retrieve states or counties using FIPS codes
map_with_data           Join county or state level data to US map data
plot_usmap              Conveniently plot basic US map
statepop                Population estimates (2015), state level
statepov                Poverty percentage estimates (2014), state
                        level
us_map                  Retrieve US map data
usmap                   usmap: US maps including Alaska and Hawaii
