Region
California
254
Colorado
214
New Mexico
167
Nevada
142
Florida
138
Texas
127
New York (State)
124
United States
121
Arizona
109
Wyoming
108
Kansas
103
Washington (State)
95
Montana
83
Utah
82
Oregon
72
Idaho
70
Hawaii
67
Minnesota
66
Arkansas
63
Tennessee
60
Louisiana
55
Pennsylvania
54
South Dakota
54
Georgia
49
North Dakota
47
North Carolina
46
New Jersey
45
Ohio
45
Nebraska
43
Kentucky
38
Puerto Rico
37
High Plains Aquifer
36
Massachusetts
36
Alabama
35
Southern States
32
Wisconsin
32
Floridan Aquifer
31
Maryland
31
San Joaquin Valley
31
South Carolina
31
Michigan
30
Illinois
28
Nye County
28
Virginia
28
Alaska
27
Long Island
25
West Virginia
25
High Plains (U.S.)
24
Columbia Plateau
23
Indiana
23
more ...