Portland ranks among the U.S. cities with the highest concentration of households headed by same-sex couples, according to the Huffington Post.

Portland ranks fifth, with 2.2 percent of households in the city headed either by two men or by two women, the website reported.

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According to U.S. Census data released last month, 0.6 percent of households nationwide were headed by same-sex couples in 2012. Maine overall was above the national average, with 0.9 percent of households led by same-sex partners.

The Huffington Post analyzed a different set of census data for urban centers around the country and posted a list of the top 10 cities with the highest percentage of same-sex households in 2012. The actual census data on Portland and other cities was not available Tuesday because the website containing the agency’s databases was unavailable due to the federal government shutdown.

According to the Huffington Post analysis, Fort Lauderdale, Fla., had the highest concentration of same-sex-partner households at 2.8 percent. Seattle, Wash., San Francisco, Calif., Minneapolis, Minn., and Portland, Maine, were the other cities in the top five.