|Coordinates: 39°58′N81°57′W / 39.97°N 81.95°W|
|Founded||March 1, 1804 |
|Named for||A Native American word meaning "swampy ground"|
|• Total||673 sq mi (1,740 km2)|
|• Land||665 sq mi (1,720 km2)|
|• Water||8.0 sq mi (21 km2) 1.2%%|
|• Density||130/sq mi (50/km2)|
|Time zone||UTC−5 (Eastern)|
|• Summer (DST)||UTC−4 (EDT)|
Muskingum County is a county located in the U.S. state of Ohio. As of the 2020 census, the population was 86,410.  Its county seat is Zanesville.  Nearly bisected by the Muskingum River, the county name is based on a Delaware American Indian word translated as "town by the river"   or "elk's eye". 
Muskingum County comprises the Zanesville, OH Micropolitan Statistical Area, which is also included in the Columbus-Marion-Zanesville, OH Combined Statistical Area. The Zanesville Micropolitan Statistical Area is the second-largest statistical area within the Combined Statistical Area, after the Columbus Metropolitan Statistical Area.
The name Muskingum may come from the Shawnee word mshkikwam 'swampy ground'.  The name may also be from Lenape "Machkigen," referring to thorns, or a specific species of thorn bush.  Muskingum has also been taken to mean 'elk's eye' (mus wəshkinkw) by folk etymology, as in mus 'elk'  + wəshkinkw 'its eye'.  Moravian missionary David Zeisberger wrote that the Muskingum River was called Elk's Eye "because of the numbers of elk that formerly fed on its banks." 
According to the U.S. Census Bureau, the county has a total area of 673 square miles (1,740 km2), of which 665 square miles (1,720 km2) is land and 8.0 square miles (21 km2) (1.2%) is water.  It is the fourth-largest county in Ohio by land area.
|U.S. Decennial Census  |
1790-1960  1900-1990 
1990-2000  2020 
As of the census  of 2000, there were 84,585 people, 32,518 households, and 22,860 families living in the county. The population density was 127 people per square mile (49/km2). There were 35,163 housing units at an average density of 53 per square mile (20/km2). The racial makeup of the county was 93.91% White, 4.01% Black or African American, 0.21% Native American, 0.27% Asian, 0.02% Pacific Islander, 0.20% from other races, and 1.37% from two or more races. 0.52% of the population were Hispanic or Latino of any race.
There were 32,518 households, out of which 33.30% had children under the age of 18 living with them, 54.30% were married couples living together, 12.00% had a female householder with no husband present, and 29.70% were non-families. 24.90% of all households were made up of individuals, and 10.90% had someone living alone who was 65 years of age or older. The average household size was 2.53 and the average family size was 3.01.
In the county, the population was spread out, with 25.90% under the age of 18, 9.40% from 18 to 24, 27.70% from 25 to 44, 22.60% from 45 to 64, and 14.30% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 92.00 males. For every 100 females age 18 and over, there were 88.40 males.
The median income for a household in the county was $35,185, and the median income for a family was $41,938. Males had a median income of $31,537 versus $22,151 for females. The per capita income for the county was $17,533. About 9.90% of families and 12.90% of the population were below the poverty line, including 17.90% of those under age 18 and 10.00% of those age 65 or over.
As of the 2010 United States Census, there were 86,074 people, 34,271 households, and 23,125 families living in the county.  The population density was 129.5 inhabitants per square mile (50.0/km2). There were 38,074 housing units at an average density of 57.3 per square mile (22.1/km2).  The racial makeup of the county was 93.0% white, 3.8% black or African American, 0.3% Asian, 0.2% American Indian, 0.2% from other races, and 2.5% from two or more races. Those of Hispanic or Latino origin made up 0.8% of the population.  In terms of ancestry, 25.2% were German, 15.5% were Irish, 11.1% were American, and 10.9% were English. 
Of the 34,271 households, 32.3% had children under the age of 18 living with them, 49.1% were married couples living together, 13.2% had a female householder with no husband present, 32.5% were non-families, and 26.9% of all households were made up of individuals. The average household size was 2.46 and the average family size was 2.95. The median age was 39.5 years. 
The median income for a household in the county was $39,538 and the median income for a family was $48,425. Males had a median income of $40,183 versus $28,668 for females. The per capita income for the county was $20,561. About 13.0% of families and 16.6% of the population were below the poverty line, including 24.6% of those under age 18 and 9.3% of those age 65 or over. 
The county is served by 7 high schools: John Glenn High School in New Concord (East Muskingum Local School District), Philo High School confusingly not located in Philo but instead across the river in Duncan Falls (Franklin Local School District), Maysville High School located in South Zanesville (Maysville Local Schools), Bishop Rosecrans (Catholic high school in downtown Zanesville), Tri-Valley High School located in Dresden (Tri-Valley Local School District), West Muskingum High School located in Zanesville (West Muskingum Local School District), and Zanesville High School which, as the name implies, is in Zanesville (Zanesville City School District).
Each high school is the only high school in school districts of the same name, the exception being Roscrans as the district is referred to as Bishop Fenwick.
The county is also served by three colleges, Muskingum University, Zane State College, and a branch campus of Ohio University known as Ohio University Zanesville.
Muskingum County is a Republican stronghold county in presidential elections. The 1964 election is the most recent in which the county voted Democratic, but Bill Clinton came within 48 votes of carrying it in 1996.
The Ohio Anti-Slavery Society was originally created as an auxiliary of the American Anti-Slavery Society  and held its first meeting Putnam, Ohio, in April 1835.  In 1872, Zanesville annexed the town of Putnam. It is now the Putnam Historic District of Zanesville. 
The Muskingum County Library System serves the communities of Muskingum County from its administrative offices in Zanesville, Ohio. This includes service to Dresden, Duncan Falls, New Concord, and Roseville. In 2005, the library loaned more than 918,000 items to its 73,000 cardholders. Total holding are over 328,000 volumes with over 190 periodical subscriptions. 
The Wilds is a 9,154 acres (37.04 km2) wildlife preserve open to visitation for a fee.
Tuscarawas County is a county located in the northeastern part of the U.S. state of Ohio. As of the 2020 census, the population was 93,263. Its county seat is New Philadelphia. Its name is a Delaware Indian word variously translated as "old town" or "open mouth". Tuscarawas County comprises the New Philadelphia–Dover, OH Micropolitan Statistical Area, which is also included in the Cleveland–Akron–Canton, OH Combined Statistical Area.
Perry County is a county located in the U.S. state of Ohio. As of the 2020 census, the population was 35,408. Its county seat is New Lexington. It was established on March 1, 1818, from parts of Fairfield, Washington and Muskingum counties. The county is named for Oliver Hazard Perry, a hero of the War of 1812. Perry County is included in the Columbus, OH Metropolitan Statistical Area. One of the poorest counties in the state, this is where the lawsuit challenging Ohio's school funding system, DeRolph v. State, began. Also home to the legendary Logan Thorpe
Noble County is a county located in the U.S. state of Ohio. As of the 2020 census, the population was 14,115, making it the fourth-least populous county in Ohio. Its county seat is Caldwell. The county is named for Rep. Warren P. Noble of the Ohio House of Representatives, who was an early settler there.
Licking County is a county located in the central portion of the U.S. state of Ohio. At the 2020 census, the population was 178,519. Its county seat is Newark. The county was formed on January 30, 1808, from portions of Fairfield County.
Guernsey County is a county located in the U.S. state of Ohio. As of the 2020 census, the population was 38,438. Its county seat and largest city is Cambridge. It is named for the Isle of Guernsey in the English Channel, from which many of the county's early settlers emigrated.
Coshocton County is a county located in the U.S. state of Ohio. As of the 2020 census, the population was 36,612. Its county seat and largest city is Coshocton. The county lies within the Appalachian region of the state. The county was formed on January 31, 1810, from portions of Muskingum and Tuscarawas Counties and later organized in 1811. Its name comes from the Delaware Indian language and has been translated as "union of waters" or "black bear crossing". The Coshocton, OH Micropolitan Statistical Area includes all of Coshocton County.
Coshocton is a city in and the county seat of Coshocton County, Ohio, United States approximately 63 mi (102 km) ENE of Columbus. The population was 11,050 at the 2020 census. The Walhonding River and the Tuscarawas River meet in Coshocton to form the Muskingum River.
Granville South is a census-designated place (CDP) in Licking County, Ohio, United States. The population was 1,410 at the 2010 census, up from 1,194 at the 2000 census.
Harbor Hills is a census-designated place (CDP) in southern Licking County, Ohio, United States. The population was 1,509 at the 2010 census, up from 1,303 at the 2000 census.
McConnelsville is a village in Morgan County, Ohio, United States located 21 miles southeast of Zanesville and 26 miles northwest of Marietta. The population was 1,784 at the 2010 census. It is the county seat of Morgan County. As of October 19, 2011, the mayor is John Walter Finley.
Dresden is a village in Jefferson and Cass townships in Muskingum County, Ohio, United States, along the Muskingum River at the mouth of Wakatomika Creek. It was incorporated on March 9, 1835. The population was 1,529 at the 2010 census.
New Concord is a village in Muskingum County, Ohio, United States. The population is 2,491 as of the 2010 census. New Concord is the home of Muskingum University and is served by a branch of the Muskingum County Library System.
North Zanesville is a census-designated place (CDP) in Muskingum County, Ohio, United States, just north of the city of Zanesville, along the Muskingum River. The population was 3,013 at the 2000 census.
South Zanesville is a village in Muskingum County, Ohio, United States, along the Muskingum River near the mouth of the Moxahala Creek. The population was 1,989 at the 2010 census.
Zanesville is a city in and the county seat of Muskingum County, Ohio, United States. It is located 52 miles (84 km) east of Columbus and had a population of 24,765 as of the 2020 census, down from 25,487 as of the 2010 census. Historically the state capital of Ohio from 1810 to 1812, Zanesville anchors the Zanesville micropolitan statistical area, and is part of the greater Columbus-Marion-Zanesville combined statistical area.
Lowell is a village in Washington County, Ohio, United States, along the Muskingum River. The population was 549 at the 2010 census. The village is located about 7.6 miles north of Marietta, Ohio.
Gratiot is a village in Licking and Muskingum counties in the U.S. state of Ohio. The population was 221 at the 2010 census.
The Muskingum River is a tributary of the Ohio River, approximately 111 miles (179 km) long, in southeastern Ohio in the United States. An important commercial route in the 19th century, it flows generally southward through the eastern hill country of Ohio. Via the Ohio, it is part of the Mississippi River watershed. The river is navigable for much of its length through a series of locks and dams.
Muskingum Township is one of the twenty-two townships of Washington County, Ohio, United States. The 2000 census found 4,627 people in the township.
Muskingum Township is one of the twenty-five townships of Muskingum County, Ohio, United States. The 2010 census found 4,520 people in the township.
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Coordinates: 39°58′N81°57′W / 39.97°N 81.95°W