It's about three-tenths as big as Kentucky.
In other words, 31,000,000 dunams is 0.29620030 times the size of Kentucky, and the size of Kentucky is 3.3760940 times that amount.(formally the Commonwealth of Kentucky) (United States)
The "Bluegrass State," Kentucky measures 104,658,900 dunams in total area. The Kentucky Bend, a 45,470 dunams piece of land, is a non-contiguous enclave to the west of Kentucky proper, surrounded by Missouri and Tennessee, and the only such non-contiguous state area in the United States.
It's about three-and-a-half times as big as Puerto Rico.
In other words, 31,000,000 dunams is 3.494920 times the size of Puerto Rico, and the size of Puerto Rico is 0.286130 times that amount.(formally the Commonwealth of Puerto Rico, a.k.a. Estado Libre Asociado de Puerto Rico) (United States)
A self-governing territory of the United States located in the Caribbean Sea, Puerto Rico is an archipelago with 8,870,000 dunams in total land area. The island is known as a popular tourist destination.
It's about three-tenths as big as Tennessee.
In other words, 31,000,000 dunams is 0.28401130 times the size of Tennessee, and the size of Tennessee is 3.5209870 times that amount.(United States)
The "Volunteer State," Tennessee measures 109,150,600 dunams in total area. Much of the 27,580,000 dunams of land in the West Tennessee Grand Division (Tennessee being divided into three "Grand Divisions") was ceded to the United States by the Chickasaw Nation in 1818.
It's about three-tenths as big as Virginia.
In other words, 31,000,000 dunams is 0.2798220 times the size of Virginia, and the size of Virginia is 3.57370 times that amount.(formally the Commonwealth of Virginia) (United States)
The "Old Dominion State," Virginia measures 110,784,700 dunams. The state's southern border with North Carolina deviates to the north by as much as 3 latitudinal minutes due to an eighteenth-century surveyor's error.
It's about one-fourth as big as Ohio.
In other words, 31,000,000 dunams is 0.267020 times the size of Ohio, and the size of Ohio is 3.745040 times that amount.(United States)
The "Buckeye State," Ohio measures 116,096,000 dunams in total area. The 1,210,000 dunams region in the northern part of the state known as the "Toledo Strip" is a once-disputed region that was the impetus for an 1835 boundary conflict between Ohio and Michigan known as the "Toledo War."
It's about one-fourth as big as Pennsylvania.
In other words, 31,000,000 dunams is 0.25988720 times the size of Pennsylvania, and the size of Pennsylvania is 3.8478230 times that amount.(formally the Commonwealth of Pennsylvania) (United States)
The "Keystone State," Pennsylvania measures 119,282,500 dunams. Although Philadelphia is home to one of the nation's busiest seaports (by amount of container traffic), the state of Pennsylvania has just 92 km (57 mi) of coastline along the Delaware Estuary and no coastline on the Atlantic ocean.
It's about four times as big as Juneau.
In other words, 31,000,000 dunams is 3.8846660 times the size of Juneau, and the size of Juneau is 0.25742240 times that amount.(a.k.a. the City and Borough of Juneau) (Alaska)
The capital of Alaska and third-largest city in both Alaska and the United States, Juneau measures 7,980,094 dunams in total area. Juneau is a port of call for many cruise ships voyaging off the Alaskan coast during the summer season.