Malibu, Calif., has long occupied a particular place in the American imagination, a sun-soaked paradise of coastal bluffs and crashing waves. It is also home to the rich and famous: Dick Van Dyke, Cher and Barbra Streisand are among the many stars who live there.

On Tuesday, Mr. Van Dyke, who turns 99 on Friday, said on Facebook that he and his wife, Arlene Silver, had left their home as the Franklin fire continued to envelop his community.

“Arlene and I have safely evacuated with our animals except for Bobo escaped as we were leaving,” he said, referring to one of their cats. “We’re praying he’ll be OK and that our community in Serra Retreat will survive these terrible fires.”

Liz Rosenberg, Cher’s publicist, said in a brief phone interview that the singer evacuated to a hotel on Monday night along with her pets. She provided no other details.

A spokesman for Ms. Streisand said he was waiting to learn about her whereabouts.

Officials at the Getty Villa, a branch of the Getty Center that houses Greek and Roman antiquities in a stunning coastal setting just east of Malibu, could not immediately be reached to say whether the museum’s operations or collection had been affected.

Living on the coast has become more challenging in recent years. After heavy rains, mudslides have repeatedly forced the closure of Pacific Coast Highway, a key artery in and out of Malibu. Six years ago, the Woolsey Fire killed three people and destroyed hundreds of homes. And rising sea levels pose an increasingly urgent threat to the many multimillion-dollar homes that overlook the ocean.