Yellowstone National Park has had an extremely busy summer season in 2021. In a press release today (9/14), park officials released attendance numbers for August, and if you visited the park last month, you were one of the 921,844 guests who came through the gates. That's an average of nearly 30,000 people per day.

Credit: Johnny Vincent, Townsquare Media

It was the busiest August ever.

Numbers were up 4.5% from 2020 and up 12% from 2019. The previous August visitor record was in 2017 (the year of the total solar eclipse), when 916,166 people swung through the park, either to watch the solar event, or as part of their eclipse travels through Wyoming.

Photo by Michael Foth, Townsquare Media

Yellowstone National Park is busting records this year.

It's always been pretty crowded in Yellowstone, but this year is going to be a record. To date, the park has tallied 3,590,904 recreation visits in 2021. Those numbers are up 40% from the same period last year and up 15% from 2019.

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While it may get slightly less congested now that school is back in session, tourists from around the world are likely to continue to pack the park until the roads are mostly closed for the season.

Photo by Michael Foth, Townsquare Media

The "shoulder season" can be a great time to visit.

If we get a nice long fall (yeah, right!) September can be a good time to sneak in a quick, end-of-summer trip to Yellowstone. The aspen trees are likely changing to gold already and you might experience less crowding this time of year. You are currently required to wear a mask at all indoor facilities or crowded outdoor areas. Also, those elk can be a little aggressive right now, because they're feeling frisky for mating season.

Check Yellowstone National Parks Current Conditions before you jump in the car.

RANKED: Here are the most popular national parks

To determine the most popular national parks in the United States, Stacker compiled data from the National Park Service on the number of recreational visits each site had in 2020. Keep reading to discover the 50 most popular national parks in the United States, in reverse order from #50 to #1. And be sure to check with individuals parks before you visit to find out about ongoing, pandemic-related safety precautions at