The chicks were each hatched between Oct. 17 and Oct. 21 to two sets of parents.
Mundo, 27 and Penelope, 7, produced two of the chicks and Opus and Genevieve, both 15, produced the third.
The fluffy new additions are the first penguins to be hatched at the zoo in two years. The zoo has raised 39 penguins since 1990.
The trio will be on display in the penguin exhibit in the spring. They spent their first weeks of life with their parents, but they are now being hand-reared by zoo keepers. The penguins will be named later this week once their sex is determined through genetic testing, said Angie Whitfield, director of marketing for the zoo.
The African penguins, an endangered species, will molt their soft gray down feathers within the next year and eventually grow into the sleek black and white plumage of adulthood.