Eleven U.S. cities have earned a perfect score on the Human Rights Campaign's (HRC) inaugural Municipal Equality Index (MEI), which measures a city's support for LGBT rights.

Of the 137 municipalities included in HRC's first survey, less than 10 percent received a 100 percent score. Those cities are Los Angeles, San Diego, San Francisco, Long Beach, Boston, Cambridge (MA), St. Louis, New York City, Portland (OR), Philadelphia and Seattle.

Cities which scored the lowest include Montgomery, Alabama (0%), Avondale Estates, Georgia (8%), Frankfort, Kentucky (0%), Baton Rouge, Louisiana (2%), Pleasant Ridge, Michigan (3%), Jackson, Mississippi (8%), Jefferson City, Missouri (0%) and Cheyenne, Wyoming (0%).

Included in the survey are the 50 state capitals, the nation's 50 most populous cities, and the 25 large, 25 mid-size, and 25 small municipalities with the highest proportion of gay and lesbian couples.

The MEI rates municipalities based on 47 criteria in 6 categories, including non-discrimination laws, relationship recognition, the city's employment practices, and the inclusiveness of city services, law enforcement and municipal leadership.

(Complete MEI survey.)