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Top Think Tanks - United States
New from Carnegie Endowment
US Think Tanks by State
D.C. - 397
Massachusetts - 177
California - 169
New York - 144
Virginia - 105
Illinois - 62
Maryland - 50
Texas - 47
Connecticut - 44
Pennsylvania - 42
New Jersey - 36
Colorado - 31
Florida - 31
Michigan - 31
Georgia - 29
Ohio - 25
Minnesota - 23
North Carolina - 23
Washington - 23
Wisconsin - 22
Arizona - 21
Indiana - 21
Maine - 21
Rhode Island - 20
Tennessee - 19
Missouri - 18
Alabama - 16
Kansas - 17
Oregon - 16
New Hampshire - 13
Hawaii - 12
Kentucky - 11
Oklahoma - 11
Iowa - 10
Louisiana - 10
Mississippi - 10
Arkansas - 8
Montana - 8
Nebraska - 7
New Mexico - 7
Utah - 7
South Carolina - 6
West Virginia - 6
South Dakota - 5
Vermont - 5
Idaho - 4
Nevada - 4
North Dakota - 4
Alaska - 3
Delaware - 3
Total - 1835
List found on page 30-31