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Roscommon County, Michigan

Roscommon County, Michigan
Map of Michigan highlighting Roscommon County
Location in the U.S. state of Michigan
Map of the United States highlighting Michigan
Michigan's location in the U.S.
Founded 1840 (created)
1875 (organized)
Named for County Roscommon
Seat Roscommon
Largest village Roscommon
Area
 • Total 580 sq mi (1,502 km2)
 • Land 520 sq mi (1,347 km2)
 • Water 60 sq mi (155 km2), 10%
Population
 • (2010) 24,449
 • Density 47/sq mi (18/km²)
Congressional district 4th
Time zone Eastern: UTC-5/-4
Website www.roscommoncounty.net

Roscommon County is a county located in the U.S. state of Michigan. As of the 2010 census, the population was 24,449. The county seat is Roscommon. The county was founded in 1840 and organized in 1875. Both the county and county seat are commonly referred to by locals as "Rosco".

The county was formed by the Michigan Legislature in 1840 as Mikenauk County, then renamed Roscommon County in 1843. It was administered by Michilimackinac (Mackinac), Cheboygan, and Midland counties, in succession, prior to the organization of county government in 1875. Roscommon County was named after County Roscommon, Ireland.

There are three official Michigan historical markers in the county. They are:

According to the U.S. Census Bureau, the county has a total area of 580 square miles (1,500 km2), of which 520 square miles (1,300 km2) is land and 60 square miles (160 km2) (10%) is water. Roscommon County is considered to be part of Northern Michigan. Roscommon County is part of the Au Sable State Forest including Roscommon FMU (Ogemaw and Roscommon counties).

Glaciers shaped the area. A large portion of the area is the so-called Grayling outwash plain, which consists of 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 census of 2000, there were 25,469 people, 11,250 households, and 7,616 families residing in the county. The population density was 49 people per square mile (19/km2). There were 23,109 housing units at an average density of 44 per square mile (17/km2). The racial makeup of the county was 97.99% White, 0.32% Black or African American, 0.64% Native American, 0.19% Asian, 0.04% Pacific Islander, 0.10% from other races, and 0.72% from two or more races. 0.80% of the population were Hispanic or Latino of any race. 24.4% were of German, 12.7% English, 9.9% Irish, 9.2% Polish, 9.2% American and 6.7% French ancestry according to Census 2000. 97.2% spoke English as their first language. Those citing "American" ancestry in Roscommon County are of overwhelmingly English extraction, however most English Americans identify simply as having American ancestry because their roots have been in North America for so long, in some cases since the 1600s.


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