Widemouth Creek

Rock is an unincorporated community in Mercer County, West Virginia, United States. Rock is located along West Virginia Route 71, 2 miles (3.2 km) northeast of Montcalm. Rock has a post office with ZIP code 24747. The community most likely took its name from a large rock formation near the original town site.

Montcalm is a census-designated place (CDP) in Mercer County, West Virginia, United States. The population was 726 at the 2010 census. It is part of the Bluefield, WV-VA micropolitan area which has a population of 107,342. Residents of Montcalm are called Montcalmers.

Sandlick is an unincorporated community in Mercer County, West Virginia, United States. Sandlick is located on Sandlick Creek at the junction of County Routes 71/5 and 71/13, 4.8 miles (7.7 km) north of Bluefield.

Kale is an unincorporated community in Mercer County, West Virginia, United States. Kale is 4.5 miles (7.2 km) west-northwest of Princeton. The community most likely derives its name from the local Kale (or Kail) family.

Lorton Lick is an unincorporated community in Mercer County, West Virginia, United States. Lorton Lick is located on West Virginia Route 71, 1.5 miles (2.4 km) south-southeast of Montcalm.

Mount Olive is an unincorporated community in Mercer County, West Virginia, United States. Mount Olive is 2.5 miles (4.0 km) east of Matoaka.

Littlesburg is an unincorporated community in Mercer County, West Virginia, United States. Littlesburg is located on West Virginia Route 20, 3.5 miles (5.6 km) north of Bluefield.

Lashmeet is a census-designated place (CDP) in western Mercer County, West Virginia, United States. It lies along West Virginia Route 10 northwest of the city of Princeton, the county seat of Mercer County. Although Lashmeet is unincorporated, it has a post office, with the ZIP code of 24733. As of the 2010 census, its population was 479. The community most likely derives its name from the local Lashmeet (or Lashmutt) family.

Bluewell, West Virginia is an unincorporated census-designated place on U.S. Route 52 in Mercer County, West Virginia, United States. As of the 2010 census, its population is 2,184. It is the terminus of West Virginia Route 20. The community has no post office, its residences being a part of Bluefield for postal purposes. Its name is derived from being halfway between Bluefield and Bramwell. The community is adjacent to Pinnacle Rock State Park. It has become an active spot for Pocahontas Trail ATV riders of the Hatfield-Mcoy Trail system with many business catering to them.

New Hope is an unincorporated community in Mercer County, West Virginia, United States. New Hope is located on West Virginia Route 20, 4 miles (6.4 km) west-southwest of Princeton.

Mercer County Airport (IATA: BLF, ICAO: KBLF, FAA LID: BLF) is in Mercer County, three miles northeast of Bluefield, West Virginia and about nine miles southwest of Princeton, West Virginia. The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a general aviation facility. The airport has been served by scheduled airlines. Service was subsidized by the Essential Air Service program until August 1, 2006, when it ended due to federal law not allowing a subsidy over $200 per passenger for communities within 210 miles of a large or medium hub airport (Charlotte/Douglas International Airport in North Carolina being 173 miles away). Federal Aviation Administration records say Mercer County Airport had 2,041 passenger boardings (enplanements) in calendar year 2004, 1,885 enplanments in 2005, 1,833 in 2006 and 1,721 in 2007. Scheduled passenger flights ended in 2007.

Glenwood is an unincorporated community in Mercer County, West Virginia, United States. Glenwood is 3.5 miles (5.6 km) southwest of Princeton.