Richland Township, Belmont County, Ohio

St. Clairsville is a city in and the county seat of Belmont County, Ohio, United States. The population was 5,096 at the 2020 census. It is part of the Wheeling metropolitan area.

St. Clairsville Public Library is located at 108 W Main Street in St. Clairsville, Belmont County, Ohio 43950. The Library's service area includes 16,200 people, or about 25% of the population of Belmont County. St. Clairsville Public Library shares its resources as part of Serving Every Ohioan, a statewide consortium of public libraries that includes 98 member libraries.

The Belmont County Courthouse is located at 101 West Main Street in St. Clairsville, Ohio, United States. It sits on the highest point in the St. Clairsville area and is thus visible from Interstate 70 and many other points in the Ohio Valley. It is a contributing property in the St. Clairsville Historic District, which was added to the National Register of Historic Places in 1969.

The St. Clairsville Historic District is located in downtown St. Clairsville, Ohio, United States. The historic district contains buildings built during the Victorian era. The Belmont County Courthouse, St. Clairsville Municipal Building, and the Clarendon Hotel are some of the most notable buildings in the district. The district was placed on the National Register of Historic Places on 1994-03-17.

St. Clairsville High School is a public high school in St. Clairsville, Ohio, United States. It currently houses grades 9 through 12. Their nickname is the Red Devils, and they compete in the Ohio High School Athletic Association as a member of the Buckeye 8 Athletic League as well as the Ohio Valley Athletic Conference. The Red Devil Football team went to the State Finals in 2012 and lost, 46-36, to Clinton-Massie. In 2016, the Red Devil boys track & field team won the school's first-ever OHSAA state title, narrowly defeating Lexington, 33-31.

The St. Clairsville-Richland City School District serves St. Clairsville, Ohio and the surrounding areas.

Ohio Valley Mall is a one-story enclosed shopping mall in Richland Township, outside St. Clairsville, Ohio. It was opened in 1978 and was developed by the Youngstown, Ohio-based Cafaro Company, which continues to own and manage it. The mall currently has four open anchor stores which are Boscov's, Dunham's Sports, Marshalls, and Michaels. It contains more than 100 stores and services. The mall currently has two vacant anchor stores which were once Macy's and Sears.

The Opatrny Village Site is an ancient village site dating from AD 1000–1600. The site was inhabited by the Monongahela culture and is a contemporary with the Fort Ancient cultural way of life. The property was placed on the National Register on 1975-05-21. The extent of the site has not been fully determined as the artifacts lie in occupational debris over 1.5 feet thick. The site has been used as a pasture and remains largely intact. The property was placed to protect the integrity of the site from a highway project. Around 1980, an extensive excavation was carried out at Opatrny; the information that it yielded was seen as highly significant in understanding the ways that local cultures changed and developed their surrounding terrain.: 367–368  Despite its location along U.S. Route 40, the village remains less disturbed by modern development than most surrounding terrain.

East Richland Christian Schools is a private, coeducational Christian school in St. Clairsville, Ohio, United States. ERCS currently resides on the campus of the East Richland Evangelical Friends Church which provides the school oversight. Athletic teams compete as the East Richland Lions in the Ohio Christian School Athletic Association. The school is well known in the area for its performance in STEAM subjects and recently was awarded a Thomas Edison Awards for Excellence in STEAM Education.

Warnock is an unincorporated community in northern Smith Township, Belmont County, Ohio, United States. It has a post office with the ZIP code 43967. It lies along State Route 9. Warnock is part of the Wheeling, WV-OH Metropolitan Statistical Area.