Livingston County is a county in the U.S. state of Michigan, and is part of the Detroit-Warren-Livonia Metropolitan Statistical Area. As of the 2000 census, the population was 156,951, with the 2010 Census placing the population at 180,967. The county seat and most populous incorporated city is Howell. As one of Michigan's "Cabinet counties", a group of counties whose names honor members of President Andrew Jackson's Cabinet, it is named after former U.S. Secretary of State Edward Livingston. Brighton Recreation Area is located in the area.Charles Howell Scout Reservation was located on the western edge of Brighton Lake and served the Detroit Area Council for many years.

According to the 2000 census, the county has a total area of 585.43 square miles (1,516.3 km²), of which 568.40 square miles (1,472.1 km²) (or 97.09%) is land and 17.03 square miles (44.1 km²) (or 2.91%) is water.

Livingston County's location in south-central Michigan offers its residents relatively convenient access to the major metropolitan centers of Detroit, Lansing, Ann Arbor, and Flint. People from Livingston County commute to all four of these cities, using the three major expressways which pass through the county: I-96, US 23, and M-59. Although, continuing to largely comprise of bedroom communities, the county is experiencing and maintaining significant growth in both the service and industrial economic sectors with major employers including Pepsico, Citizens Insurance and Ogihara Industries.

Michigan (ⁱ/ˈmɪʃɨɡən/) is a state located in the Great Lakes region of the Midwestern United States. The name Michigan is the French form of the Ojibwa word mishigamaa, meaning "large water" or "large lake". Michigan is the 8th most populous of the 50 United States, with the 11th most extensive total area. Its capital is Lansing, and the largest city is Detroit. Michigan was admitted into the Union on January 26, 1837 as the 26th state.

Michigan has the longest freshwater coastline of any political subdivision in the world, being bounded by four of the five Great Lakes, plus Lake Saint Clair. Michigan is one of the leading U.S. states for recreational boating. The state has 64,980 inland lakes and ponds. A person in the state is never more than six miles (9.7 km) from a natural water source or more than 85 miles (137 km) from a Great Lakes shoreline. It is the largest state by total area east of the Mississippi River.

Michigan is the only state to consist of two peninsulas. The Lower Peninsula, to which the name Michigan was originally applied, is often noted to be shaped like a mitten. The Upper Peninsula (often referred to as "the U.P.") is separated from the Lower Peninsula by the Straits of Mackinac, a five-mile (8 km) channel that joins Lake Huron to Lake Michigan. The two peninsulas are connected by the Mackinac Bridge. The Upper Peninsula is economically important due to its status as a tourist destination. There is also a variety of natural resources to be found there, including a sizable amount of iron ore.

Livingston County is a county located in the U.S. state of New York. As of the 2010 census, the population was 65,393. It is named after Robert R. Livingston, delegate to the 1775 Continental Congress, member of the committee that drafted the Declaration of Independence, and father-in-law of Richard Montgomery, after whom Montgomery County (and similarly named counties in many other states) were named. Its county seat is Geneseo.

Livingston County is part of the Rochester, New York Metropolitan Statistical Area.

When counties were established in New York State in 1683, the present Livingston County was part of Albany County. This was an enormous county, including the northern part of New York State as well as all of the present State of Vermont and, in theory, extending westward to the Pacific Ocean. This county was reduced in size on July 3, 1766 by the creation of Cumberland County, and further on March 16, 1770 by the creation of Gloucester County, both containing territory now in Vermont.