Learn more about visitation statistics collection and official reports by the National Park Service and use the NPS Stats database to find additional data, reports, and highlights for individual parks and for past years. The National Park Service administers more than 400 national parks across the country of different shapes, sizes, and purpose. This ten most visited parks list includes parks from the more than 19 naming designations that currently exist. 50 percent of total recreation visits occurred in 27 parks (7 percent of all parks in the National Park System)