Jordan Valley is a city in Malheur County, Oregon, United States. It is part of the Ontario, OR–ID Micropolitan Statistical Area. The city was named after Jordan Creek, a tributary of Owyhee River, which runs through the city; the creek is named for a 19th century prospector, Michael M. Jordan. The population was 239 at the 2000 census. As of the census of 2000, there were 239 people, 109 households, and 66 families residing in the city. The population density was 114.6 people per square mile (44.4/km sq). There were 140 housing units at an average density of 67.2 per square mile (26.0/km sq). The racial makeup of the city was 93.72% White, 0.42% Asian, 0.42% Pacific Islander, 1.67% from other races, and 3.77% from two or more races. Hispanic or Latino of any race were 2.09% of the population.