See Studies on Map

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).

Region Name Number of Studies World 495,219 North America 192,492 United States 172,742 Alabama 11,622 Alaska 896 Arizona 14,581 Arkansas 6,309 California 45,361 Colorado 14,706 Connecticut 10,320 Delaware 2,342 District of Columbia 6,792 Florida 30,584 Georgia 17,109 Hawaii 2,269 Idaho 3,455 Illinois 22,017 Indiana 11,976 Iowa 6,360 Kansas 8,641 Kentucky 9,128 Louisiana 9,018 Maine 2,216 Maryland 21,927 Massachusetts 24,272 Michigan 17,698 Minnesota 15,473 Mississippi 3,832 Missouri 16,870 Montana 2,621 Nebraska 7,072 Nevada 5,777 New Hampshire 3,068 New Jersey 13,958 New Mexico 4,129 New York 35,676 North Carolina 23,470 North Dakota 2,336 Ohio 25,476 Oklahoma 7,867 Oregon 10,380 Pennsylvania 27,500 Rhode Island 4,614 South Carolina 11,402 South Dakota 2,617 Tennessee 16,777 Texas 36,780 Utah 9,545 Vermont 2,256 Virginia 14,160 Washington 15,301 West Virginia 2,645 Wisconsin 9,837 Wyoming 552

Tips: 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.