From the 2016 National Survey of Fishing, Hunting, and Wildlife-Associated Recreation (FHWAR), Summary on page 4:

“The 2016 National Survey of Fishing, Hunting, and Wildlife-Associated Recreation revealed that over 103 million U.S. residents 16 years and older participated in wildlife-related recreation. During that year, 35.8 million people fished, 11.5 million hunted, and 86.0 million participated in at least one type of wildlife-watching activity including observing, feeding, or photographing fish and other wildlife in the United States.

“The focus of the National Survey is to estimate participation and expenditures of persons 16 years and older in a single year. These estimates are based on data collected in the detailed phase of the 2016 Survey. They are comparable to the estimates of the 1991, 1996, 2001, 2006, and 2011 Surveys but not to earlier Surveys because of changes in methodology. A complete explanation is in Appendix C.”
 

According to the U.S. Fish & Wildlife Service: “The 2022 FHWAR survey is currently underway with results expected in the summer of 2023. The survey will provide important data on outdoor recreation participation, expenditure, and include additional information about the total number of target shooters, archers, and boaters.”