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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   247,989  
North America   113,929  
United States   102,904  
Alabama   7,676  
Alaska   543  
Arizona   8,909  
Arkansas   4,095  
California   27,433  
Colorado   9,193  
Connecticut   6,662  
Delaware   1,625  
District of Columbia   4,530  
Florida   18,335  
Georgia   10,921  
Hawaii   1,640  
Idaho   2,137  
Illinois   14,224  
Indiana   8,081  
Iowa   4,094  
Kansas   5,443  
Kentucky   5,874  
Louisiana   5,878  
Maine   1,588  
Maryland   15,208  
Massachusetts   15,205  
Michigan   11,254  
Minnesota   9,644  
Mississippi   2,551  
Missouri   10,845  
Montana   1,876  
Nebraska   4,687  
Nevada   3,622  
New Hampshire   2,052  
New Jersey   8,984  
New Mexico   2,853  
New York   22,404  
North Carolina   14,887  
North Dakota   1,718  
Ohio   16,026  
Oklahoma   5,125  
Oregon   6,824  
Pennsylvania   17,512  
Rhode Island   3,170  
South Carolina   7,482  
South Dakota   1,636  
Tennessee   10,649  
Texas   22,285  
Utah   5,800  
Vermont   1,676  
Virginia   8,773  
Washington   10,044  
West Virginia   1,696  
Wisconsin   6,362  
Wyoming   391  

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.

This page last reviewed in June 2017