It's about one-five-hundred-fiftieth as big as Russia.
In other words, 31,000,000 dunams is 0.0018130519 times the size of Russia, and the size of Russia is 551.556190 times that amount.(a.k.a Российская Федерация, formally the Russian Federation, a.k.a. Россия)
The largest country in the world, Russia measures 17,098,242,000 dunams. Russia spans eleven time zones and holds more forest than any other country in the world, as well as lakes and rivers containing totaling 25% of the world's fresh water supply.
It's about 650 times as big as The Pitcairn Islands.
In other words, the size of The Pitcairn Islands is 0.0015 times 31,000,000 dunams.(a.k.a. Pitcairn, Henderson, Ducie and Oeno Islands, a.k.a. Pitkern Ailen) (British overseas territory) (total land area)
The Pitcairn Islands are a group of four islands which have a combined area of 47,000 dunams. A British overseas territory since 1838, the island is populated by the descendents of mutineers and others who traveled on the British Royal Naval Ship, HMS Bounty during her 1789-1790 voyage.
It's about 800 times as big as Rock Island.
In other words, 31,000,000 dunams is 790.350 times the size of Rock Island, and the size of Rock Island is 0.0012653 times that amount.(a.k.a. Arsenal Island, a.k.a. Rock Island Arsenal) (Illinois, on the Iowa border) (land area only)
Rock Island measures 39,220 dunams in total area. It is known as the largest government-owned weapons manufacturing arsenal in the United States and the US Army's only active foundry, as well as a former Union prison camp during the American Civil War.
It's about 1,000 times as big as Tuvalu.
In other words, 31,000,000 dunams is 1,200 times the size of Tuvalu, and the size of Tuvalu is 0.00083 times that amount.(a.k.a. Ellice Islands)
Tuvalu is a chain of islands totaling 26,000 dunams in area and located midway between Hawaii and Australia, near Samoa and Fiji. It is the third-least populated nation in the world, with just 11,992 citizens and residents.
It's about 1,500 times as big as Fort Meade.
In other words, 31,000,000 dunams is 1,415 times the size of Fort Meade, and the size of Fort Meade is 0.0007067 times that amount.(a.k.a. Fort George G. Meade) (near Odenton, Maryland)
Fort Meade measures 21,910 dunams. It is known as home of the Fort Meade Museum and the National Cryptologic Museum.
It's about 1,500 times as big as Nauru.
In other words, the size of Nauru is 0.00067 times 31,000,000 dunams.(a.k.a. Republic of Nauru, a.k.a. Pleasant Island)
The world's smallest island nation, Nauru is a Micronesian island with a total area of 21,000 dunams. Once a prosperous phosphate mining nation with the highest per-capita income of any nation, today 90% of the population is unemployed.
It's about 2,000 times as big as LAX.
In other words, 31,000,000 dunams is 2,200 times the size of LAX, and the size of LAX is 0.00045 times that amount.(a.k.a. Los Angeles International Airporta, a.k.a. KLAX) (total land area) (2012 figures)
Including nine passenger terminals and several other administrative and cargo facilities, LAX sits on 14,000 dunams of land. In 2014, LAX serviced almost 71 million passengers, 600,000 planes, and over 1.9 million tons of freight.