Region
Mississippi
49
New York (State)
39
Louisiana
30
Texas
28
Arkansas
27
Florida
22
High Plains Aquifer
21
Mississippi River Valley
19
Kansas
18
Montana
18
New Jersey
16
North Carolina
16
Maryland, Southern
12
Southern States
12
Gulf Coast (U.S.)
11
Floridan Aquifer
10
New Mexico
10
Alabama
8
Maryland
8
New Hampshire
8
Black Creek Aquifer (S.C. and N.C.)
7
Chesapeake Bay Region (Md. and Va.)
7
Houston Region
7
Minnesota
7
Oklahoma
7
Pennsylvania
7
Puerto Rico
7
Bladen County
6
Colorado
6
Edwards Aquifer (Tex.)
6
Harris-Galveston Coastal Subsidence District (Tex.)
6
Middle West
6
Ohio
6
Oneida County
6
Robeson County
6
South Carolina
6
Albuquerque Region
5
Black Hills (S.D. and Wyo.)
5
Hudson River Watershed
5
Long Island
5
Ozark Mountains Region
5
Steuben County
5
Arizona
4
Bucks County
4
Delaware
4
Magothy Aquifer
4
Mississippi River
4
Ocean County
4
Palm Beach County
4
Santa Fe Group
4
more ...