It's about as big as Rock Island.
In other words, the size of Rock Island is 1.0001 times 39,220 dunams.(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 four-fifths as big as The Pitcairn Islands.
In other words, 39,220 dunams is 0.830 times the size of The Pitcairn Islands, and the size of The Pitcairn Islands is 1.20 times that amount.(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 one-and-a-half times as big as Tuvalu.
In other words, the size of Tuvalu is 0.670 times 39,220 dunams.(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 two-thirds as big as San Marino.
In other words, the size of San Marino is 1.60 times 39,220 dunams.(a.k.a. The Most Serene Republic of San Marino, a.k.a. Serenissima Repubblica di San Marino)
an Marino is an enclave country located within the Apennine Mountains in Italy, with a total area of 61,000 dunams. Established in 301 CE, San Marino is the oldest sovereign state in the world.
It's about one-and-four-fifths times as big as Fort Meade.
In other words, 39,220 dunams is 1.790 times the size of Fort Meade, and the size of Fort Meade is 0.55870 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 one-and-nine-tenths times as big as Nauru.
In other words, the size of Nauru is 0.530 times 39,220 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 two-fifths as big as Disney World.
In other words, 39,220 dunams is 0.3880 times the size of Disney World, and the size of Disney World is 2.580 times that amount.(a.k.a. Walk Disney World Resort, a.k.a. Walt Disney World, a.k.a. WDW) (Lake Buena Vista and Bay Lake, Florida) (total site)
Disney World currently occupies 101,000 dunams. Part of the former total area of 120,000 dunams now comprises the Disney planned community of Celebration, Florida.