Washington has more than 24,000 households headed by same-sex couples and Idaho has about 3,200, based on recently released data from the 2010 Census.
An analysis by the Williams Institute at the UCLA Law School says King County has the most highest number of same-sex couple households in Washington and the highest rate for every 1,000 households, with Vashon and Seattle leading the list of cities among those households. In Idaho, Ada County and Boise have the highest number of same-sex households but the highest rate, nearly 14 of every 1,000 households, is in Benewah County.
Neither Spokane nor Kootenai County show up on any of the “top five lists.”
Three of four households in Idaho and four of five in Washington are not raising children, the institute said. Almost three-fourths of those households in Idaho are headed by women. In Washington the split is a bit more even, with 60 percent headed by two women and 40 percent by two men.