The most populous cities in area code 513 are: Cincinnati, Hamilton, Middletown, Oxford, and Mason.
Other cities in the 513 area code include: Lebanon, Fairfield, West Chester, Loveland, Goshen, Trenton, Harrison, Milford, Bethel, Williamsburg, Monroe, Okeana, Batavia, Morrow, South Lebanon, Waynesville, Camden, Felicity, Amelia, Cleves, New Richmond, Fayetteville, and Pleasant Plain.
Cincinnati is a city in the U.S. state of Ohio that serves as county seat of Hamilton County. Settled in 1788, the city is located on the north side of the confluence of the Licking with the Ohio River. With a population of 298,550, Cincinnati is the third-largest city in Ohio and the 65th-largest city in the United States. Its metropolitan statistical area is the 28th-largest in the United States and the largest centered in Ohio. The city is also part of the larger Cincinnati–Middletown–Wilmington combined statistical area, which had a population of 2,172,191 in the 2010 census. In the 19th century, Cincinnati was an American boomtown in the heart of the country; it rivaled the larger coastal cities in size and wealth. Throughout much of the 19th century, it was listed among the top 10 U.S. cities by population, surpassed only by New Orleans and the older, established settlements of the Eastern Seaboard; at one point holding the position of America's sixth-largest city for a period spanning consecutive census reports from 1840 until 1860. It was by far the largest city in the west. Because it is the first major American city founded after the American Revolution as well as the first major inland city in the country, Cincinnati is sometimes thought of as the first purely "American" city. Cincinnati developed with less European immigration or influence than eastern cities attracted in the same period; however, it received a significant number of German immigrants, who founded many of the city's cultural institutions. By the end of the 19th century, with the shift from steamboats to railroads drawing off freight shipping, trade patterns had altered and Cincinnati's growth slowed considerably. The city was surpassed in population by other inland cities, particularly Chicago, which developed based on commodity exploitation and the railroads, and St. Louis, for decades after the Civil War the gateway to westward migration.Cincinnati is home to two major sports teams, the Cincinnati Reds, the oldest franchise in Major League Baseball, and the Cincinnati Bengals of the National Football League. The University of Cincinnati, founded in 1819, is one of the 50 largest in the United States. Cincinnati is known for its historic architecture. In the late 1800s, Cincinnati was commonly referred to as "Paris of America", due mainly to such ambitious architectural projects as the Music Hall, Cincinnatian Hotel, and Shillito Department Store.
Hamilton is a city in and the county seat of Butler County, Ohio, United States, in the state's southwestern corner. The population was 62,447 at the 2010 census. The city is part of the Cincinnati metropolitan area. Its neighborhood of Lindenwald, settled by German immigrants in the mid-19th century and later, is one of three designated National Historic Districts.The city has a council-manager form of government. Its mayor is Patrick Moeller and the city manager is Joshua Smith. Most of the city is in the Hamilton City School District.The industrial city is seeking to revitalize through the arts; it was officially declared the "City of Sculpture" in 2000. Its initiative has attracted many sculpture installations to the city, which founded the Pyramid Hill Sculpture Park.
Middletown is a city located in Butler and Warren counties in the southwestern part of the U.S. state of Ohio. Formerly in Lemon, Turtlecreek, and Franklin townships, Middletown was incorporated by the Ohio General Assembly on February 11, 1833, and became a city in 1886.The population of Middletown as of the 2010 census was 48,694. It is part of the Cincinnati-Middletown Metropolitan Statistical Area as defined by the U.S. Census Bureau. The city was the home of AK Steel Holding Corporation (formerly Armco), a major steel works founded in 1900 until offices were moved to West Chester Township, Ohio in 2007, but AK Steel's factory still resides in Middletown. Middletown contains a small municipal airport known as Hook Field, (airport code MWO), but is no longer served by commercial airlines, only general aviation. A regional campus of Miami University is located in Middletown. In 1957, Middletown was designated as an All-America City.
The 513 area code lies within the Eastern Daylight Time Zone (or EDT). The current time in Eastern Daylight Time is 5:01 AM on Dec 20, 2022.