Montmorency County is a county located in the U.S. state of Michigan. As of the 2010 census, the population was 9,765. The county seat is Atlanta.
According to the U.S. Census Bureau, the county has a total area of 563 square miles (1,460 km), of which 547 square miles (1,420 km) is land and 16 square miles (41 km) (2.8%) is water. Although it lies on Michigan’s Lower Peninsula, Montmorency County is considered to be part of Northern Michigan.
Most of the county is covered by state forest land. There is an abundance of lakes, such as Long Lake. Glaciers shaped the area, creating a unique regional ecosystem. A large portion of the area is the Grayling outwash plain, a broad outwash plain including sandy ice-disintegration ridges, jack pine barrens, some white pine-red pine forest, and northern hardwood forest. Large lakes were created by glacial action.
As of the 2000 United States Census, there were 10,315 people, 4,455 households, and 3,047 families residing in the county. The population density was 19 people per square mile (7/km²). There were 9,238 housing units at an average density of 17 per square mile (7/km²). The ethnic makeup of the county was 98.36% White, 0.24% Black or African American, 0.36% Native American, 0.10% Asian, 0.10% from other races, and 0.84% from two or more ethnic groups. 0.65% of the population were Hispanic or Latino of any ethnic group. 28.3% were of German, 12.7% English, 9.5% American, 8.8% Irish, 7.6% Polish and 7.4% French ancestry, 98.1% spoke English as their first language.
There were 4,455 households out of which 22.50% had children under the age of 18 living with them, 58.10% were married couples living together, 7.10% had a female householder with no husband present, and 31.60% were non-families. 27.50% of all households were made up of individuals and 15.40% had someone living alone who was 65 years of age or older. The average household size was 2.29 and the average family size was 2.75.
The county population contained 20.30% under the age of 18, 5.90% from 18 to 24, 20.90% from 25 to 44, 29.10% from 45 to 64, and 23.90% who were 65 years of age or older. The median age was 47 years. For every 100 females there were 96.60 males. For every 100 females age 18 and over, there were 94.90 males.
The county’s median household income was $30,005, and the median income for a family was $34,784. Males had a median income of $30,910 versus $19,299 for females. The per capita income for the county was $16,493. About 9.80% of families and 12.80% of the population were below the poverty line, including 20.00% of those under age 18 and 8.70% of those age 65 or over.