Jerome is a city in and county seat of Jerome County, Idaho, United States. The population was 10,890 at the 2010 census, up from 7,780 in 2000. The city is the county seat of Jerome County, and is part of the Twin Falls Micropolitan Statistical Area. It is the second largest city in Idaho's Magic Valley region, second only to Twin Falls which is located southeast. Jerome's economy is largely agrarian, with dairy farming being one of the main revenue sources for the local economy. Demographics 2010 census At the 2010 census there were 10,890 people, 3,693 households, and 2,640 families living in the city. The population density was . There were 3,985 housing units at an average density of . The racial makeup of the city was 78.3% White, 0.4% African American, 1.8% Native American, 0.4% Asian, 0.1% Pacific Islander, 16.7% from other races, and 2.2% from two or more races. Hispanic or Latino of any race were 34.3%. Of the 3,693 households 45.1% had children under the age of 18 living with them, 49.6% were married couples living together, 13.6% had a female householder with no husband present, 8.3% had a male householder with no wife present, and 28.5% were non-families. 23.5% of households were one person and 10.6% were one person aged 65 or older. The average household size was 2.92 and the average family size was 3.44. The median age was 28.9 years. 33% of residents were under the age of 18; 10.6% were between the ages of 18 and 24; 27.2% were from 25 to 44; 19.1% were from 45 to 64; and 10.2% were 65 or older. The gender makeup of the city was 50.4% male and 49.6% female. 2000 census At the 2000 census there were 7,780 people, 2,776 households, and 1,959 families living in the city. The population density was . There were 2,966 housing units at an average density of . The racial makeup of the city was 72.47% white, 0.18% African American, 0.91% Native American, 0.23% Asian, 0.06% Pacific Islander, 9.64% from other races, and 2.51% from two or more races. Hispanic or Latino of any race were 30.92%. Of the 2,776 households 38.5% had children under the age of 18 living with them, 53.8% were married couples living together, 11.2% had a female householder with no husband present, and 29.4% were non-families. 24.6% of households were one person and