Families who participate in the National Children’s Study will come from 105 Study locations (counties or groups of counties) across the United States. Study Centers are research teams that will carry out the research at these Study locations. There will be up to 40 Study Centers and most centers will manage more than one Study location.
To find a Study location or to learn more about how the Study Centers and locations operate, select one of the topics below.
Click on the Study Locations Map below to view the interactive list of locations.
![illustration: map of the United States](https://webarchive.library.unt.edu/web/20090114020241im_/http://www.nationalchildrensstudy.gov/studylocations/PublishingImages/study-locations-map-mini.jpg)