It's about 0.0000003 times as big as Houston.
In other words, 51 squares is 0.00000031570 times the size of Houston, and the size of Houston is 3,168,000 times that amount.(Texas)
The largest city in Texas and the fourth-largest city in the United States as of 2009, Houston measures 161,600,000 squares in total area. The city is known for its broad corporate base, prominence in oilfield equipment, and for its port, which accepts more cargo than any other port in the United States.
It's about 0.0000003 times as big as Oahu.
In other words, 51 squares is 0.000000306610 times the size of Oahu, and the size of Oahu is 3,261,500 times that amount.(a.k.a. O`ahu, a.k.a. The Gathering Place) (Hawaii)
The third-largest of the Hawaiian Islands, Oahu measures 166,330,000 squares in total area. It is known as the home of the state capital, Honolulu, as the site of the 1941 attack on Pearl Harbor, and as the filming location of numerous movies and television shows.
It's about 0.0000003 times as big as Oklahoma City.
In other words, 51 squares is 0.0000002936260 times the size of Oklahoma City, and the size of Oklahoma City is 3,405,693 times that amount.(a.k.a. OK City, a.k.a. OKC) (Oklahoma)
The capital and largest city in the state, Oklahoma City measures 173,690,300 squares. The city is known for its energy exploration and information technology industries and as the location of the 1995 bombing of the Murrah Federal Building by Timothy McVeigh.
It's about 0.0000003 times as big as Butte.
In other words, 51 squares is 0.00000025519690 times the size of Butte, and the size of Butte is 3,918,543 times that amount.(The City and County of Butte-Silver Bow) (Montana)
The eighth-largest city in the country and the second-largest in Montana, the Butte-Silver Bow City County measures 199,845,700 squares. The city was called "the Richest Hill on Earth" for its numerous copper, silver, and gold mines.
It's about 0.0000003 times as big as Maui.
In other words, 51 squares is 0.000000251560 times the size of Maui, and the size of Maui is 3,975,200 times that amount.(Hawaii)
The second-largest of the Hawaiian Islands, Maui measures 202,740,000 squares in total area. It is known as the home of the Maui High Performance Computing Center and as a major tourist destination.
It's about 0.0000003 times as big as Anaconda.
In other words, 51 squares is 0.000000246790 times the size of Anaconda, and the size of Anaconda is 4,052,000 times that amount.(Anaconda City/Deer Lodge County) (Montana)
The consolidated city-county of Deer Lodge County (of which Anaconda is the county seat) measure 206,660,000 squares in total area. The town of Anaconda is named after the Anaconda Mine owned by the town's founder, Marcus Daly, and was itself the namesake of the Anaconda Copper Company, one of the largest trusts of the twentieth century.
It's about 0.0000002 times as big as Jacksonville.
In other words, 51 squares is 0.00000020788410 times the size of Jacksonville, and the size of Jacksonville is 4,810,373 times that amount.(Florida)
The largest city in Florida and the fifth-largest city in the country, Jacksonville measures 245,329,000 squares in total area. The city is known for its diversified industrial and manufacturing base and as a transportation hub, featuring a prominent deep-water port, a large airport, and extensive rail yards.