Amboy is a city in Blue Earth County, Minnesota, United States. The population was 534 at the 2010 census. It is part of the Mankato–North Mankato Metropolitan Statistical Area. The city was founded in 1879. It celebrated its 125th anniversary in September, 2004.
According to the United States Census Bureau, the city has a total area of 0.31 square miles (0.80 km), all of it land.
U.S. Route 169 and Minnesota State Highway 30 are two of the main routes in the community.
As of the census of 2010, there were 534 people, 232 households, and 157 families residing in the city. The population density was 1,722.6 inhabitants per square mile (665.1/km). There were 260 housing units at an average density of 838.7 per square mile (323.8/km). The racial makeup of the city was 96.8% White, 1.3% African American, 0.2% Native American, 0.4% Asian, 1.1% from other races, and 0.2% from two or more races. Hispanic or Latino of any race were 5.1% of the population.
There were 232 households of which 26.3% had children under the age of 18 living with them, 55.2% were married couples living together, 8.6% had a female householder with no husband present, 3.9% had a male householder with no wife present, and 32.3% were non-families. 28.9% of all households were made up of individuals and 11.6% had someone living alone who was 65 years of age or older. The average household size was 2.30 and the average family size was 2.78.
The median age in the city was 41.7 years. 21.2% of residents were under the age of 18; 9% were between the ages of 18 and 24; 23% were from 25 to 44; 28.4% were from 45 to 64; and 18.2% were 65 years of age or older. The gender makeup of the city was 50.7% male and 49.3% female.
As of the census of 2000, there were 575 people, 242 households, and 161 families residing in the city. The population density was 1,838.9 people per square mile (716.2/km²). There were 268 housing units at an average density of 857.1 per square mile (333.8/km²). The racial makeup of the city was 98.43% White, 0.17% Asian, and 1.39% from two or more races. Hispanic or Latino of any race were 1.39% of the population.
There were 242 households out of which 33.1% had children under the age of 18 living with them, 57.9% were married couples living together, 5.8% had a female householder with no husband present, and 33.1% were non-families. 30.6% of all households were made up of individuals and 17.4% had someone living alone who was 65 years of age or older. The average household size was 2.38 and the average family size was 2.98.
In the city, the population was spread out with 27.0% under the age of 18, 6.1% from 18 to 24, 25.0% from 25 to 44, 23.0% from 45 to 64, and 19.0% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 96.9 males. For every 100 females age 18 and over, there were 91.8 males.
The median income for a household in the city was $35,595, and the median income for a family was $39,844. Males had a median income of $31,667 versus $20,833 for females. The per capita income for the city was $15,658. About 8.3% of families and 13.0% of the population were below the poverty line, including 21.8% of those under age 18 and 12.8% of those age 65 or over.