9. Seattle-Tacoma-Bellevue, Wash.
Percentage of Households: 0.91
According to the Human Rights Campaign's Corporate Equality Index, which rates employers on their employment practices, several major companies that call Seattle home rank among the country's most gay-friendly. Seattle-based Amazon.com and Starbucks received perfect scores of 100 in the 2010 Index, and Nordstrom scored a 95.