According to Wikipedia, the frequency of mass shootings in America can vary depending on the definition and criteria used to classify such incidents. As of the current data available, it is mentioned that there were 610 incidents of mass shootings in the United States between 2014 and 2021.

Please note that the number may vary as new incidents occur and are reported. For the most up-to-date information, it is recommended to refer directly to the linked Wikipedia page.