Monte Rio is a census-designated place (CDP) in Sonoma County, California along the Russian River near the Pacific Ocean.
 The town of Guerneville lies east of Monte Rio, and Jenner is slightly north-west.
 The population was 1,152 at the 2010 census, up from 1,104 at the 2000 census.
 Bohemian Grove is located in Monte Rio.
Isle au Haut ( ) is a town in Knox County, Maine, United States, on an island of the same name in Penobscot Bay.
 The population was 73 at the 2010 census.
 Home to portions of Acadia National Park, Isle au Haut is accessible by ferry from Stonington, Maine.
Dangar Island is a forested island, 29 ha in area, in the Hawkesbury River, just north of Sydney, New South Wales, Australia.
 Dangar Island is a suburb of Hornsby Shire and as at the 2011 Census had a population of 267, which swells dramatically during holiday seasons.
 The island is serviced regularly by Brooklyn Ferry Service and departs from Brooklyn and takes about ten minutes.
 The Brooklyn ferry is itself adjacent to Hawkesbury River railway station.
 The ferry service is in operation 7 days a week.
Stonington is a town in Hancock County, Maine, United States, located on the southern portion of Deer Isle.
 The population was 1,152 at the 2000 census.
 It includes the villages of Oceanville and West Stonington.
 A picturesque old seaport and tourist destination on Penobscot Bay, the town is home to Stonington Municipal Airport, and terminus for mailboat ferry service to the island town of Isle au Haut.
Frenchboro is a town in Hancock County, Maine, United States, and a village within this town located on Long Island, southeast of Swans Island - an island distinct from both the island town of Long Island in Cumberland County and the Long Island in Blue Hill Bay, southeast of Blue Hill Harbor.
 The population was 61 at the 2010 census.
Coral Bay is a town and a sub-district on the island of St. John in the United States Virgin Islands.
 It is located on the southeastern side of the island.
 Though it was once the main commercial and population center on the island due to its sheltered harbor, it has fallen from prominence with the introduction of a ferry service to Cruz Bay, which is now the largest town on St. John.
 While Coral Bay does not offer any ferry service, it is eight miles away from Cruz Bay along Centerline Road.
 It is also a short drive from the East End region of St. John.
Swan's Island is an island town in Hancock County, Maine, United States.
 It is named after Colonel James Swan of Fife, Scotland, who purchased the island and some surrounding areas and organized their colonization in the eighteenth century.
 The population was 332 at the 2010 census.
 The town is accessible by ferry from Bass Harbor.
Bor (Russian: Бор ) is a town in Nizhny Novgorod Oblast, Russia, located on the left (northern) bank of the Volga River, across from Nizhny Novgorod.
 The two cities are connected by bridges built in 1965 and 2017, and by ferry service.
 Population:  (2010 Census) ;  (2002 Census) ;  (1989 Census) ; 51,000 (1969).
North Haven is a town in Knox County, Maine, United States, in Penobscot Bay.
 The town is both a year-round island community and a prominent summer colony.
 The population was 355 at the 2010 census.
 North Haven is accessed by three-times daily ferry service from Rockland, or by air taxi from Knox County Regional Airport.
Little Diamond Island (previously Little Hog Island) is an island in Casco Bay, Maine.
 It is part of the city of Portland, Maine.
 As of the 2000 census, the island had a year-round population of 5.
 Most of the island is private property.
 It is served by the Casco Bay Lines ferry service.

Question: this town with its population of 1,152 at the 2000 census is the terminus for mailboat ferry service to an island town which at the 2010 census had a population of what?
Answer: 73