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Ohio Counties

There is eighty-eight counties in the state of Ohio. Washington County the oldest in the state established on July 27, 1788. Noble County was formed on March 11, 1851 from portions of Guernsey, Morgan, Monroe and Washington counties. It was the last county to be formed in Ohio and, therefore, represents the youngest county in the state.

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Guernsey County, Ohio

Guernsey County Education, Geography, and HistoryGuernsey County, Ohio Courthouse

Guernsey County is a county located in the state of Ohio. Based on the 2010 census, the population was 40,087. Its county seat is Cambridge, and it is named for the Isle of Guernsey in the English Channel, from which many of the county's early settlers emigrated.

Guernsey County comprises the Cambridge, OH Micropolitan Statistical Area, which is also included in the Columbus-Marion-Zanesville, OH Combined Statistical Area.

Etymology - Origin of Guernsey County Name

Residents named the county after the "Isle of Guernsey."


County QuickFacts: Census Bureau Quick Facts

Guernsey County History

On January 31, 1810, the Ohio government authorized the creation of Guernsey County. Residents named the county after the "Isle of Guernsey."

Guernsey County is located in eastern Ohio, in the heart of Appalachia. It is predominantly rural, with less than one percent of the county's 522 square miles consisting of urban areas. The county seat is Cambridge, which, in 2000, was the county's largest urban center with a population of 11,520 people. Guernsey County experienced a slight increase in population- roughly 4.5 percent- between 1990 and 2000, raising the total number of residents to 40,792 people. Many residents of Ohio's rural communities are seeking better lives and more opportunities in the state's cities, but Guernsey County seems to be remaining stable in population. The county averages seventy-eight people per square mile.

The largest employers in Guernsey County are service industries, such as health care and communications, with sales positions a close second. During the late nineteenth century, Guernsey County became famous for its glass manufacturing. While the county's glass production has declined, a tourist industry, consisting largely of glass collectors, has arisen in its place. In 1999, the per capita income in the county was 18,641 dollars, with 15.4 percent of the people living in poverty.

Most voters in Guernsey County claim to be independents, yet in recent years, they have supported Republican Party candidates at the national level by small margins.

Among Guernsey County's more prominent residents were astronaut John Glenn, Jr., and actor William Boyd, who played Hopalong Cassidy in movies and on television

Guernsey County, Ohio History Central, July 23, 2008,

Geography: Land and Water

As reported by the Census Bureau, the county has a total area of 528 square miles (1,370 km2), of which 522 square miles (1,350 km2) is land and 6.0 square miles (16 km2) (1.1%) is water.

Neighboring Counties

Bordering counties are as follows:

  • Tuscarawas County (north)
  • Harrison County (northeast)
  • Belmont County (east)
  • Noble County (south)
  • Muskingum County (west)
  • Coshocton County (northwest)


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