In this post we see that in 2013 the percentage of households comprised of opposite-sex unmarried partners ranged from 4.3 percent to 6.2 percent, with St. Clair County having the highest percentage. Additionally, there were more opposite-sex unmarried partner households in Southeast Michigan, than same-sex unmarried households in 2013. As shown in a previous post, no county had more than 0.8 percent of its households comprised of same-sex unmarried households was above 0.8 percent and no municipality’s percentage was above 3.7 percent.

Within the seven county region, Milan City in Monroe County had the highest percentage of opposite-sex unmarried partner households at 16.8 percent. The only other municipality within the region where more than 10 percent of the households were made up of an opposite-sex unmarried partners was Mussey Township in St. Clair County; 10.9 percent of the population lived in such a household.

As already noted, St. Clair County had the highest percentage of opposite-sex unmarried partner households at 6.2 percent; Oakland County had the lowest at 4.3 percentage. Within Oakland County, Hazel Park had the highest percentage of opposite-sex unmarried partner households at 7.8 percent. Oakland and Macomb counties were the only counties that did not have a municipality where 9 percent or more of households contained opposite-sex unmarried partners. In Wayne County, Gibraltar was the only municipality where more than 9 percent of the households were made up of opposite-sex unmarried partners (9.1 percent).Conway Township in Livingston County also had 9.1 percent of its households made up of opposite-sex unmarried partners; this was the only municipality in Livingston County where more than 9 percent of the households being made up of opposite-sex unmarried partners. In Washtenaw County, Ypsilanti had the highest percentage of opposite-sex unmarried partner households at 9.6 percent.

Although at the municipal level there were few communities where more than 9 percent of the households were made up of opposite-sex unmarried partners, at the census tract level we see that there were in fact areas throughout Oakland and Macomb counties where more than 9 percent of households were comprised of opposite-sex unmarried partners. In Oakland County, these areas were located in and around Pontiac, Rochester, White Lake and Ferndale/Hazel Park. In Macomb County, these tracts were in the areas of Chesterfield Township, Sterling Heights, Mount Clemens, Fraser, Harrison Township, Clinton Township, and Eastpointe.

Detroit, which had a percentage of 5.2 of opposite-sex unmarried partner households, had a large number of census tract with a high percentage of opposite-sex unmarried partner households.