Warren County Canal

The John B. Tytus House is a historic house at 300 South Main Street in Middletown, Ohio, United States. Built in 1865,it was the home of John Butler Tytus (1875-1944), who invented a practical hot wide-strip continuous steel-rolling process that transformed the American steelmaking industry. The house was designated a National Historic Landmark in 1976 due to the efforts of Jeri and Pat Rossi, who bought the house in 1970. The house was the residence of the Rossi family until 2011.

South Main Street District is a historic district in Middletown, Ohio. It contains 76 contributing buildings, including single-dwelling, professional, and specialty store uses. The district was listed in the National Register of Historic Places in 1974. It includes the John B. Tytus House, which is a National Historic Landmark.

West Middletown is an unincorporated community in eastern Madison Township, Butler County, Ohio, United States. It is located on the west shore of the Great Miami River about one mile from Middletown. It had about 200 people in 1905 and was formerly a station on the Cincinnati, Hamilton, and Dayton Railroad. Founded as Madison City, it received the name Heno when it was awarded a post office in 1882. Since there was already another Madison City in Ohio, the postmaster general demanded a name change. According to legend, as old-timers were discussing the new name around the cracker barrel in the general store, a can of Heno tea caught their attention. So the town was named for the tea. But in 1907, the postmaster general decreed the village was within the shadow of Middletown, and only a few postal workers had ever heard of Heno, making it difficult to sort and forward mail to the place. The government ordered the village to accept the name of West Middletown. In 1963 the postmaster general in another decree closed the West Middletown post office, transferring its business to Middletown.

Middletown is a city located in Butler and Warren counties in the southwestern part of the U.S. state of Ohio. The population as of the 2020 census was 50,987. It is part of the Cincinnati metropolitan area, located 29 miles (47 km) northeast of Cincinnati and 20 miles (32 km) southwest of Dayton.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 city was the home of AK Steel Holding Corporation (formerly Armco), a major steel works founded in 1900. Although offices were moved to nearby West Chester Township in 2007, the AK Steel factory is still in Middletown. Middletown is also home to Hook Field Municipal Airport (airport code MWO), which was formerly served by commercial airlines but is currently only for general aviation. A regional campus of Miami University is located in Middletown. In 1957, Middletown was designated as an All-America City.

The Butler County Warbirds is a non-profit organization located at the Middletown Regional Airport in Middletown, Ohio focused on military aviation history.

Madison Township is one of thirteen townships in Butler County, Ohio, United States. Located in northeastern Butler County, just west of Middletown, it had a population of 8,556 people as of the 2020 census. While it surrounds the city of Trenton, the city is no longer part of the township. It is named for James Madison, president of the United States at the time of its creation in 1810, and is one of twenty Madison Townships statewide.

South Middletown is a former census-designated place (CDP) in Lemon Township, Butler County, Ohio, United States. The population was 264 at the 2000 census. The area of South Middletown is now within the city limits of Middletown.

Poast Town is an unincorporated community located in northeastern Madison Township, Butler County, Ohio, United States, on State Route 4, about one mile north of Middletown in Section 12 of T2R4 of the Congress Lands. It was laid out in 1818 by Peter Post as the town of West Liberty. A post office with the name Poast Town was established in 1848 but closed in 1934. Mail is provided through the Middletown post office, it is located in the Middletown telephone exchange. It is in the Madison Local School District.

The Harding-Jones Paper Company District is a registered historic district in Excello, Ohio, listed in the National Register of Historic Places on May 29, 1975. A significant, early example of Ohio industry, the mill was owned by the Harding and Jones families for most of its operation. The mill, adjacent to the first lock completed on the Miami-Erie Canal, also includes two residences, a carriage house, and a canal lock.

Madison Junior-Senior High School is a public high school near Middletown, Ohio. It is the only high school in the Madison Local Schools district. The school colors are red, black and white. Madison's sports teams, known as the Mohawks, participated in the Fort Ancient Valley Conference from 1979 until 1984, when the school left for the Southwestern Buckeye League's Buckeye Division, which consists of smaller schools.

Miami University Middletown or Miami Middletown is a satellite campus of Miami University in Middletown, Ohio. It was founded in 1966 and is the oldest regional campus of Miami University and Ohio's first regional campus. It is one of two regional campuses of Miami University.

Life Skills Center of Middletown is an alternative high school in Middletown, Ohio, United States, operated by LifeSkills' which operates schools in several U.S. states. Life Skills offers an online curriculum designed to help students earn a high school diploma. The school is designed to allow students to be employed full-time or do volunteer work while in high school.