As of 2026-10-12, Majuli tops the list with 167,304.
- #1 Majuli — 167,304
island in Assam, Northeast India
Majuli is the largest river island in Assam, a state in Northeast India. It is bordered by the Brahmaputra River to the south and east, the Subansiri River to the west, and an anabranch of the Brahmaputra to the north. Read more on Wikipedia.
Wikidata - #2 Margarita Island — 117,210
island in the Magdalena River, Colombia
Margarita Island, also called Mompox Island, is an inland river island in the Magdalena River, near Mompos town of interior Colombia. It is located in the Bolivar Department, on the border with the Magdalena Department in northern Colombia. With an area of 2100 to 2200 km2, it is the largest island in Colombia and the fourth largest river island in the world after the islands of Marajo, Bananal and Tupinambarana. It had a population of 117,210 in 2008. Read more on Wikipedia.
Wikidata - #3 Canvey Island — 38,327
civil parish and reclaimed island in the Thames estuary in Essex, England
Canvey Island is a town, civil parish and island in the Thames Estuary. It forms part of the Castle Point district of Essex, England. It is separated from the mainland of south Essex by a network of creeks, but is connected to the mainland by bridges. It has an area of 7.12 square miles (18.44 km2). At the 2021 census the parish had a population of 38,327 and the built up area had a population of 38,010. Read more on Wikipedia.
Wikidata - #4 Grand Island — 21,389
town in New York
Grand Island is an island town in Erie County, New York, United States. As of the 2020 census, the town's population was 21,389 representing an increase of 5.00% from the 2010 census figure. The town's name is derived from the French name La Grande Île; Grand Island is the largest island in the Niagara River and the third largest in New York state. The phrase La Grande Île appears on the town seal. Read more on Wikipedia.
Wikidata - #5 Gezira Island — 17,365
island in the Nile River, in Cairo, Egypt
Gezira is an island in the Nile, in central Cairo, Egypt. The southern portion of the island contains the Gezira district, and the northern third contains the Zamalek district. Gezira is the Egyptian Arabic word for island. Gezira is west of downtown Cairo and Tahrir Square, connected across the Nile by four bridges each on the east and west sides, the Qasr El Nil Bridge, 15 May Bridge, Al-Gala'a Bridge and 6th October Bridge. Read more on Wikipedia.
Wikidata - #6 Île des Soeurs — 16,000
island in St. Lawrence River near Montreal
Nuns' Island is an island located in the Saint Lawrence River that forms a part of the city of Montreal, Quebec. It is part of the borough of Verdun. Read more on Wikipedia.
Wikidata - #7 Rhoda Island — 13,206
urban district
Roda Island is an island neighbourhood on the Nile in central Cairo, alternatively known as Manial al-Roda, or al-Manial, referring to the main village that existed on the island before it was urbanised, and is part of the Old Cairo district. Read more on Wikipedia.
Wikidata - #8 Roosevelt Island — 11,661
island on East River in New York City, United States
Roosevelt Island is an island in New York City's East River, within the borough of Manhattan. It lies between Manhattan Island to the west, and the borough of Queens, on Long Island, to the east. It is about 2 miles (3.2 km) long, with an area of 147 acres (0.59 km2), and had a population of 11,722 as of the 2020 United States census. It consists of two largely residential communities: Northtown and Southtown. Roosevelt Island is owned by the city but was leased for 99 years to the New York... Read more on Wikipedia.
Wikidata - #9 île Saint-Denis — 7,071
island in Seine-Saint-Denis, France
source Wikidata - #10 Île d'Orléans — 7,000
island in the Saint Lawrence River, Quebec, Canada
Île d'Orléans is an island located in the Saint Lawrence River about 5 kilometres (3.1 mi) east of downtown Quebec City, Quebec, Canada. It was one of the first parts of the province to be colonized by the French, and a large percentage of French Canadians can trace ancestry to early residents of the island. The island has been described as the "microcosm of traditional Quebec and as the birthplace of francophones in North America." Read more on Wikipedia.
Wikidata