Amboy is a town in Jackson Township, Miami County, in the U.S. state of Indiana. The population was 384 at the 2010 census.
Amboy was platted in 1867, when the Pan Handle Railroad was extended to that point. A post office has been in operation at Amboy since 1868.
Amboy is located at 40°36′10″N 85°55′43″W (40.602758, -85.928615).
According to the 2010 census, Amboy has a total area of 0.35 square miles (0.91 km2), all land.
As of the 2010 census, there were 384 people, 151 households, and 114 families living in the town. The population density was 1,097.1 inhabitants per square mile (423.6/km2). There were 169 housing units at an average density of 482.9 per square mile (186.4/km2). The racial makeup of the town was 96.6% White, 0.5% African American, 1.0% Asian, 1.0% from other races, and 0.8% from two or more races. Hispanic or Latino of any race were 0.8% of the population.
There were 151 households, of which 26.5% had children under the age of 18 living with them, 60.3% were married couples living together, 11.3% had a female householder with no husband present, 4.0% had a male householder with no wife present, and 24.5% were non-families. 21.9% of all households were made up of individuals, and 10% had someone living alone who was 65 years of age or older.