Donovan Estates is a census-designated place (CDP) in Yuma County, Arizona, United States.

According to the United States Geological Survey, the CDP has a total area of 0.12 square miles (0.31 km2), all land.

The racial makeup of the CDP was 53.4% White, 0.6% Black or African American, 0.5% American Indian, 0.5% Asian, 0.4% Native Hawaiian and Other Pacific Islander, 38.7% Other, and 5.8% Two or More Races.

Of the family households, 221 were married couples living together, 27 were single fathers and 85 were single mothers; the non-family households included 31 adults living alone: 14 male and 17 female.

The CDP contained 394 housing units, of which 374 were occupied and 20 were vacant.