Singlehood in Ann Arbor and Detroit is quite popular, according to data provided by the 2012 American Community Survey. When comparing the City of Detroit to the other municipalities that make up the seven-county region, Detroit was one of only four municipalities where over 40 percent of females 15 and older have never been married. For males, Detroit was one of 22 municipalities in which more than 40 percent of the male population was single. Given these percentages, however, Detroit was not the city in the seven-county region with the highest percentage of people who have never been married. That distinction belonged to Ann Arbor, where over 50 percent of both the male and female population was single in 2012.

When looking at both the tri-county and seven county region, there were only four municipalities in 2012 where more than 40 percent of the female population, 15 years of age and older, had never been married by 2012. These municipalities were: Ann Arbor, Detroit,  Highland Park and Pontiac. Ann Arbor had the highest percentage of single females at 51.6 percent; Detroit was closely behind at 50.1 percent.  Highland Park came in third at 47.5 percent and Pontiac came in fourth at 42 percent.

When looking at the Southeast Michigan map,  the outlying counties (Livingston, Monroe, St. Clair, and Washtenaw) were predominantly composed of communities where the population of single females ranged from 10 to 20 percent.  Wayne County was the only county in the region where the percent of the single, never married, female population was above 20 percent in all communities.

According the American Community Survey, there were more single males in the City of Detroit in 2012 and in the seven-county region than there were single females. The number of municipalities in the Southeast Michigan region where 40 percent or more of the male population was never married by 2012 is more than double the number of municipalities with the same percentage of single females.

Of the 22 municipalities where more than 40 percent of the male population was single and never married, Ann Arbor had the highest percentage at 58.4 percent. Wayne and Oakland counties both had the highest number of communities (6) where more than 40 percent of the male population was single in 2012. In Wayne County, the City of Highland Park had the highest percentage of men never married at 56.5; the City of River Rouge came in second with 55.3 percent and the City of Detroit came in third with 54.9.

In addition to Washtenaw County having the community with the highest single male population, it also has the highest number of communities where only 10 to 20 percent are single. There are four such communities in Washtenaw County and one in Livingston County.