Her escape from her native California came amid growing costs of living, encroaching wildfires and a waning sense of safety after the burglary of a neighbor's home. The fitness-trainer-turned-startup-worker decided it was time to reinvent herself in a foreign land, but like many American expats she didn't want to feel too far from home.

In this wealthy enclave about 15 miles from the Portuguese capital, Lisbon, she found her slice of California on the west coast of Europe: ocean breezes, mountain views, hot spring days on palm-tree-lined promenades, and the glow of sunsets that seep into the night.

"Things were just becoming too much back home, but I didn't want to leave everything about L.A. behind," said Dixon, 37. Dressed in yoga pants and cross-trainers, she sipped white wine at an organic cafe that overlooked waves crashing into Big Sur-like cliffs a short walk from the rental she shares with her actor husband and 7-year-old daughter.

"With Portugal," she said, "we could keep the parts we liked and leave the rest."

Dixon has plenty of company in a country that has become an international destination for tourism and residency alike.

This once seafaring empire known for Port wine and Fado music can feel a lot like California. Except it's much more affordable on a U.S. budget. That's one reason the slender nation on the Atlantic has attracted — and even advertised to — Americans who are packing up.