ACADIA NAT’L PARK — No one knows how many people visited Acadia in 2021 or how many times each of them walked, biked or drove into the park.
But the estimated total number of visits, based on some actual counts that are multiplied by certain percentages, was 4.07 million.
It was the first time the estimated total topped four million, exceeding the previous record high for a calendar year of 3.54 million set in 2018.
The estimated number of visits for December was 14,381, which was down 32.4 percent from the same month the year before. That was rather curious because visitation for each of the first 11 months last year was higher than in the same month in 2020, when tourism was curtailed by COVID-19.
For the entire year of 2021, the estimated number of visits was 52.5 percent higher than in the previous year.
There are 423 National Park Service sites including national monuments, national historic sites, national battlefields and 63 national parks, which are designated by Congress.
With the 2021 number, Acadia unofficially moves up one slot to sixth place on the list of most-visited national parks, behind Great Smoky Mountains, Zion, Yellowstone, Grand Canyon and Rocky Mountain. Yosemite has been in the top five for many years, topping out at 5.03 million in 2016, but its visitation number dropped to 3.29 million in 2021.