The most populous cities in area code 615 are: Nashville, Old Hickory, Clarksville, Murfreesboro, and Franklin.
Other cities in the 615 area code include: Hendersonville, Smyrna, Brentwood, La Vergne, Gallatin, Mount Juliet, Lebanon, Goodlettsville, Springfield, Dickson, Portland, Fairview, Dixon Springs, Hartsville, Nolensville, Greenbrier, Lafayette, Ashland City, Smithville, Pleasant View, White Bluff, Kingston Springs, Carthage, Westmoreland, Cross Plains, Charlotte, Red Boiling Springs, Watertown, Lyles, Adams, Eagleville, Bell Buckle, Bethpage, Vanleer, Arrington, Chestnut Mound, College Grove, Cunningham, Pleasant Shade, Spring Hill, and White House.
Nashville is the capital of the U.S. state of Tennessee and the county seat of Davidson County. It is located on the Cumberland River in the north central part of the state. The city is a center for the music, healthcare, publishing, banking and transportation industries, and home to numerous colleges and universities. It is known as a center of the country music industry, earning it the nickname "Music City, U.S.A." Since 1963, Nashville has had a consolidated city-county government which includes six smaller municipalities in a two-tier system. Nashville is governed by a mayor, vice-mayor, and 40-member Metropolitan Council. Thirty-five of the members are elected from single-member districts; five are elected at-large. Reflecting the city's position in state government, Nashville is home to the Tennessee Supreme Court's courthouse for Middle Tennessee. According to 2015 estimates from the U.S. Census Bureau, the total consolidated city-county population stood at 678,889. The "balance" population, which excludes semi-independent municipalities within Nashville, was 654,610. The 2015 population of the entire 13-county Nashville metropolitan area was 1,830,345, making it the largest metropolitan statistical area in the state. The 2015 population of the Nashville-Davidson–Murfreesboro–Columbia combined statistical area, a larger trade area, was 1,951,644.
Old Hickory is a neighborhood of metropolitan Nashville named in honor of President Andrew Jackson who was nicknamed "Old Hickory."This area is located in the Hadley Bend section of eastern Davidson County. The area is probably best known for being a former company town as the site of a large DuPont plant. Many of the houses in Old Hickory were built to house DuPont employees and supervisors in the early days of the factory's existence. Old Hickory is bordered by the Cumberland River on the north and west, Old Hickory Lake to the east, and the former city of Lakewood to the south. To the north of the area is also the location of Old Hickory Lock and Dam. The main street through the area is Old Hickory Boulevard (Tennessee State Route 45).The area today is the site of a country club, large golf course, city park, a Chamber of Commerce, and the DuPont plant, which has been mostly shut down but continues to employ a few hundred workers. The Nashville National Weather Service Forecast Office is located just to the southeast in nearby Wilson County, but it has an Old Hickory mailing address.Old Hickory has its own post office, assigned ZIP Code 37138. The postal service area that uses the "Old Hickory" mailing address includes portions of Wilson and Davidson counties. Many historic homes are located in the area known as the Village of Old Hickory, containing a number that are listed on the National Register of Historic Places. The smaller bungalow houses were built by DuPont as residences for factory workers, with the larger homes being designated for management. Many of the formerly dilapidated houses in the area are being bought, repaired and modernized.
Clarksville is the county seat of Montgomery County, Tennessee, and the fifth-largest city in the state behind Memphis, Nashville, Knoxville, and Chattanooga. The city had a population of 132,957 at the 2010 census, and an estimated population of 149,176 in 2015. It is the principal central city of the Clarksville, TN-KY metropolitan statistical area, which consists of Montgomery and Stewart Counties in Tennessee, and Christian and Trigg Counties in Kentucky. The city was incorporated in 1785 as Tennessee's first incorporated city, and named for General George Rogers Clark, frontier fighter and Revolutionary War hero, and brother of William Clark of the Lewis and Clark Expedition. Clarksville is the home of Austin Peay State University ; The Leaf-Chronicle, the oldest newspaper in Tennessee; and neighbor to the Fort Campbell, United States Army base. Site of the 101st Airborne Division (Air Assault), Fort Campbell is located about 10 miles (16 km) from downtown Clarksville, straddling the Tennessee-Kentucky state line. It is officially Fort Campbell, Kentucky, as the base U.S. Post Office is on the Kentucky side of the post. The majority of the acreage of Fort Campbell is within the state of Tennessee.
The 615 area code lies within the Central Daylight Time Zone (or CDT). The current time in Central Daylight Time is 3:13 PM on Apr 20, 2021.