Region
United States
316
Gulf States
7
Mexican-American Border Region
7
Northern boundary of the United States
6
Colorado
4
Texas
4
Alaska
3
Arizona
3
Canada
3
European Union countries
3
Washington (D.C.)
3
Washington Region
3
Afghanistan
2
Austin
2
California
2
Dallas
2
Delaware
2
Indiana
2
Louisiana
2
New Orleans
2
Puerto Rico
2
West (U.S.)
2
California, Southern
1
Charlotte Region
1
Chesapeake Bay (Md. and Va.)
1
Chesapeake Bay Region (Md. and Va.)
1
Chesapeake Bay Watershed
1
Colombia
1
Europe
1
Florida
1
Gulf Coast (U.S.)
1
Korea (South)
1
Long Island
1
Los Angeles
1
Michigan
1
Middle West
1
Montana
1
Nebraska
1
New Jersey
1
New York (State)
1
New York Metropolitan Area
1
North Carolina
1
Panama
1
Peru
1
Russia (Federation)
1
Utah
1
Washington (State)
1
Wisconsin
1