Aetna Estates is an unincorporated community and a census-designated place (CDP) located in Arapahoe County, Colorado, United States.

The population of the Aetna Estates CDP was 1,496 at the United States Census 2020.

[4] The unincorporated community is surrounded by Aurora and lies in ZIP Code 80018.

[5] The Aetna Estates CDP has an area of 84 acres (0.339 km2), all land.

[6] The United States Census Bureau initially defined the Aetna Estates CDP for the United States Census 2010.