There is much to learn about the smallest unit of the National Park Service. At .02 acres, the Thaddeus Kosciuszko National Memorial tells an expansive story about an international champion of human rights. Read more about Kosciuszko's devotion to liberty in the History and Culture section.
The smallest park is Gateway Arch National Park, Missouri, at 192.83 acres (0.7804 km2). The total area protected by national parks is approximately 52.4 million acres (212,000 km2), for an average of 833 thousand acres (3,370 km2) but a median of only 220 thousand acres (890 km2).
Magic Kingdom is the only park at Walt Disney World that we believe requires two days to do everything without feeling rushed–you can do the other parks in one day each.
Thirty states and two U.S. territories have a total of 63 national parks. California has the most with nine, followed by Alaska with eight, Utah with five, and Colorado with four.