Most Expensive Suburb in Washington: Sammamish
Median home price: $549,500
Cost-of-living index: 199
Nonretail spending index: 200
Location: 18 miles east of Seattle
Next door to the Redmond home of Microsoft and nestled under the looming Cascade Mountains to the east, Sammamish is a growing Seattle suburb with prime real estate along the eastern shore of Lake Sammamish. The town boasts great schools, numerous parks, and a championship golf course at the Sahalee Country Club.