Rockland is a city in Power County, Idaho, United States. The population was 295 at the 2010 census. History Rockland claims its founding in 1879, 11 years before Idaho achieved its statehood in 1890. The Rockland Valley was traveled by trappers before its founding, but its first permanent settlers entered the valley in 1878. At that time, Hildalgo Guadelupe Valdez herded his cattle into the valley and chose the valley as his home. In efforts to establish his home he dug a ditch from the East Fork Creek as means to irrigate his 30 acres of land. Thus, he was granted his "Water Right" on Feb. 15, 1879. Not only was he the first settler in the valley, but also the first irrigated farmer in the valley. Geography Rockland is located at (42.573469, -112.876344). Rockland is named after Rock Creek which flows north west into the Snake River. 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 295 people, 97 households, and 76 families residing in the city. The population density was . There were 114 housing units at an average density of . The racial makeup of the city was 99.7% White and 0.3% from two or more races. Hispanic or Latino of any race were 1.7% of the population. There were 97 households, of which 28.9% had children under the age of 18 living with them, 69.1% were married couples living together, 6.2% had a female householder with no husband present, 3.1% had a male householder with no wife present, and 21.6% were non-families. 17.5% of all households were made up of individuals, and 5.2% had someone living alone who was 65 years of age or older. The average household size was 3.04 and the average family size was 3.43. The median age in the city was 34.9 years. 32.9% of residents were under the age of 18; 6.7% were between the ages of 18 and 24; 21% were from 25 to 44; 23.2% were from 45 to 64; and 16.3% were 65 years of age or older. The gender makeup of the city was 49.5% male and 50.5% female. 2000 census As of the census of 2000, there were 316 people, 100 households, and 80 families residing in the city. The population density was . There