Downey is a city in Bannock County, Idaho, United States. It is part of the 'Pocatello, Idaho Metropolitan Statistical Area'. The population was 613 at the 2000 census. According to the United States Census Bureau, the city has a total area of 1.0 square mile (2.6 sq km), all of it land. As of the census of 2000, there were 613 people, 233 households, and 165 families residing in the city. The population density was 622.8 people per square mile (241.5/sq km). There were 264 housing units at an average density of 268.2 per square mile (104.0/sq km). The racial makeup of the city was 97.39% White, 0.49% Native American, 0.16% Asian, 0.49% Pacific Islander, 1.31% from other races, and 0.16% from two or more races. Hispanic or Latino of any race were 1.63% of the population.