Erda ( UR-də) is a census-designated place (CDP) and township in Tooele County, Utah, United States, located just south of Stansbury Park and just north of the county seat of Tooele. The population was 4,642 at the 2010 census, a significant increase from the 2000 figure of 2,473. In November of 2020 Erda will vote to incorporate into a city.
According to the United States Census Bureau, the CDP has a total area of 22.5 square miles (58.2 km²), all of it land. The community has been known in the past by the names Bates and Batesville.
As of the census of 2000, there were 2,473 people, 697 households, and 623 families residing in the CDP. The population density was 110.1 people per square mile (42.5/km²). There were 722 housing units at an average density of 32.2/sq mi (12.4/km²). The racial makeup of the CDP was 96.93% White, 0.28% African American, 0.36% Native American, 0.32% Asian, 0.53% Pacific Islander, 0.61% from other races, and 0.97% from two or more races. Hispanic or Latino of any race were 4.25% of the population.
There were 697 households out of which 54.2% had children under the age of 18 living with them, 81.3% were married couples living together, 5.0% had a female householder with no husband present, and 10.6% were non-families.