East Millcreek was a census-designated place (CDP) in Salt Lake County, Utah, United States, that was consolidated with neighboring Millcreek in 2010. The consolidated CDP was incorporated in 2016. The population was 21,385 at the 2000 census, a minute increase over the 1990 figure of 21,184. It was originally proposed to be included in the corporate limits of the city of Holladay, which was incorporated on November 29, 1999. However, inclusion of East Millcreek was rejected by voters in 2008. East Milcreek was then incorporated with the former Millcreek CDP as the city of Milcreek on December 28, 2016.
As of the census of 2000, there were 21,385 people, 7,479 households, and 5,564 families residing in the CDP. The population density was 4,801.6 people per square mile (1,855.5/km²). There were 7,707 housing units at an average density of 1,730.5/sq mi (668.7/km²). The racial makeup of the CDP was 95.04% White, 0.43% African American, 0.14% Native American, 1.45% Asian, 0.26% Pacific Islander, 1.08% from other races, and 1.59% from two or more races. Hispanic or Latino of any race were 2.74% of the population.