Marsing is a city in Owyhee County, Idaho. The population was 1,031 at the time of the 2010 census. It is part of the Boise metropolitan area. Geography Marsing is located at (43.545484, -116.807811), at an elevation of above sea level. The city is on the Snake River, which forms the border with Canyon County. According to the United States Census Bureau, the city has a total area of , of which is land and is water. Highways State Highway 55 connects the city with Canyon County and continues to Nampa to the northeast. Two miles (3 km) west of Marsing, Highway 55 connects with U.S. Route 95, the primary north–south route for the state and its primary connection to western Nevada and northern California. State Highway 78 heads southeast to Murphy and Grand View within Owyhee County. Demographics 2010 census As of the census of 2010, there were 1,031 people, 371 households, and 266 families living in the city. The population density was . There were 403 housing units at an average density of . The racial makeup of the city was 74.9% White, 1.6% Native American, 0.4% Asian, 20.6% from other races, and 2.6% from two or more races. Hispanic or Latino of any race were 33.8% of the population. There were 371 households, of which 39.9% had children under the age of 18 living with them, 54.4% were married couples living together, 12.7% had a female householder with no husband present, 4.6% had a male householder with no wife present, and 28.3% were non-families. 24.8% of all households were made up of individuals, and 10.5% had someone living alone who was 65 years of age or older. The average household size was 2.78, and the average family size was 3.37. The median age in the city was 35.4 years. 29.5% of residents were under the age of 18; 8.4% were between the ages of 18 and 24; 22.8% were from 25 to 44; 26.1% were from 45 to 64; and 13.1% were 65 years of age or older. The gender makeup of the city was 49.8% male and 50.2% female. 2000 census As of the census of 2000, there were 890 people, 332 households, and 235 families living in the city. The population density was . There were 366 housing units at an average density of . The racial makeup of the city was 74.04% White, 0.45%