The Ritz-Carlton Spa Half Moon Bay

From Northern California's dramatic coastline to New York City's urban glitz, here are our readers' favorite U.S. spas.

Browse through the full list or jump to your favorite region by clicking on the links below:

• Favorite New U.S. Spas (opened in 2008)
• Las Vegas
• Northeast, Mid-Atlantic, & Midwest
• Southern California
• Rockies & Southwest
• South & Southeast
• Hawaii & South Pacific
• Northern California & Pacific Northwest

Favorite New U.S. Spas (opened in 2008)

The number of spas in the United States has increased at an annual average of 17 percent for the past five years, helping to ensure domestic tranquility. Whether gilded in the glamour of Las Vegas or the casual couture of the Southern California coast, your recently opened picks prove there are some things new under the sun—and they're fabulous.

Favorite Resort/Hotel Spas 
Las Vegas

Las Vegas has quickly become one of the world's premier spa destinations, and a wellness-focused stay in Sin City is no gamble due to the resorts' constant game of one-upmanship—in service, ambience, and amenities—which leaves you the ultimate winner. These are your dealers of choice for serenity on the Strip.

Favorite Resort/Hotel Spas 
Northeast, Mid-Atlantic, & Midwest

From the nation's original urban centers to its rural heartland, the spas you highlighted east of the Mississippi are a sophisticated confluence of Eastern and Western modalities and seasonal sensations. 

Favorite Resort/Hotel Spas
Southern California

With weather that encourages alfresco activities, there's an abundance of positive peer pressure in Southern California to look and feel your best. Though the Golden State's lower latitudes are synonymous with surf, sun, and sand, only the latter two are applicable to your first-place pick. Leaving the beach behind, Palm Desert blazed ahead of the competition.

Favorite Resort/Hotel Spas
Rockies & Southwest

Once a wild frontier, the region is now known as much for relaxation as for riding and roping. The following standouts (including a tie for fifth place) are on your trail to tranquility.

Favorite Resort/Hotel Spas 
South & Southeast

The hospitality of the South is reflected in your choice of destinations. The Grove Park Inn, a favorite of F. Scott Fitzgerald, makes your list, along with stellar spa brands Canyon Ranch, The Ritz-Carlton, and Mandarin Oriental.

Favorite Resort/Hotel Spas 
Hawaii & South Pacific

Once again, spas in the world's most isolated island chain prove the most popular in the Pacific. Hawaii's volcanoes, rainforests, and pristine beaches provide the backdrop to your top five selections. 

Favorite Resort/Hotel Spas
Northern California & Pacific Northwest

From the Central Coast of California to Oregon and Washington, the pine-and-sea-scented air brings renewal. But it's clearly the Golden State that captured your heart. Here are the spas that draw you northwest.