Hamer is a city in Jefferson County, Idaho, United States. It is part of the Idaho Falls Metropolitan Statistical Area. The population was 48 at the 2010 census. The city was named after Thomas Ray Hamer (1864–1950), a United States Representative from Idaho. Geography Hamer is located at (43.917085, -112.198009). According to the United States Census Bureau, the city has a total area of , all of it land. Demographics 2010 census As of the census of 2010, there were 48 people, 13 households, and 10 families living in the city. The population density was . There were 16 housing units at an average density of . The racial makeup of the city was 72.9% White, 6.3% Asian, and 20.8% from two or more races. Hispanic or Latino of any race were 12.5% of the population. There were 13 households, of which 46.2% had children under the age of 18 living with them, 69.2% were married couples living together, 7.7% had a female householder with no husband present, and 23.1% were non-families. 23.1% of all households were made up of individuals, and 15.4% had someone living alone who was 65 years of age or older. The average household size was 3.69 and the average family size was 4.50. The median age in the city was 22 years. 47.9% of residents were under the age of 18; 2.2% were between the ages of 18 and 24; 14.7% were from 25 to 44; 18.8% were from 45 to 64; and 16.7% were 65 years of age or older. The gender makeup of the city was 47.9% male and 52.1% female. 2000 census As of the census of 2000, there were 12 people, 4 households, and 4 families living in the city. The population density was . There were 4 housing units at an average density of 19.9 per square mile (7.7/km2). The racial makeup of the city was 41.67% White, 50.00% from other races, and 8.33% from two or more races. Hispanic or Latino of any race were 50.00% of the population. There were 4 households, out of which 25.0% had children under the age of 18 living with them and 100.0% were married couples living together. The average household and family size was 3.00. In the city, the population was spread out, with 16.7% under the age of 18, 25.0% from 18 to 24, 25.0% from 25 to 44, 8.3% from