  Florida         Miami-Dade     6113982   (-80.2101 25.784)
#&gt;  5 Houston      Texas           Harris         6046392   (-95.3885 29.786)
#&gt;  6 Dallas       Texas           Dallas         5843632  (-96.7667 32.7935)
#&gt;  7 Philadelphia Pennsylvania    Philadelph…    5696588  (-75.1339 40.0077)
#&gt;  8 Atlanta      Georgia         Fulton         5211164   (-84.422 33.7628)
#&gt;  9 Washington   District of Co… District o…    5146120  (-77.0163 38.9047)
#&gt; 10 Boston       Massachusetts   Su