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See Studies on Map

Map of All Studies on

On the map below, click on a region to show a more detailed map (when available) or see a list of studies with locations in that region (when a detailed map is not available).
Map Legend
Region Name Number of Studies
World 335,336
North America 144,849
United States 130,309
Alabama 9,275
Alaska 697
Arizona 11,129
Arkansas 4,992
California 34,317
Colorado 11,422
Connecticut 8,226
Delaware 1,946
District of Columbia 5,376
Florida 23,038
Georgia 13,459
Hawaii 1,885
Idaho 2,718
Illinois 17,346
Indiana 9,667
Iowa 5,026
Kansas 6,706
Kentucky 7,228
Louisiana 7,179
Maine 1,888
Maryland 17,976
Massachusetts 18,812
Michigan 13,836
Minnesota 12,004
Mississippi 3,074
Missouri 13,356
Montana 2,181
Nebraska 5,649
Nevada 4,544
New Hampshire 2,500
New Jersey 10,962
New Mexico 3,389
New York 27,650
North Carolina 18,404
North Dakota 1,965
Ohio 19,729
Oklahoma 6,227
Oregon 8,288
Pennsylvania 21,577
Rhode Island 3,768
South Carolina 9,088
South Dakota 2,020
Tennessee 13,162
Texas 27,789
Utah 7,256
Vermont 1,968
Virginia 10,852
Washington 12,197
West Virginia 2,093
Wisconsin 7,780
Wyoming 476

Click on a region name link to show a map of that region

Click on a study count link to see a list of studies in that region. Use your browser's back button to return to this list and view studies in another region.

Studies with no locations are not included in the study counts or on the maps.

Studies with multiple locations are included in each region where the study has locations.