Sidney Waterworks and Electric Light Building

Sidney is a city in Shelby County, Ohio, United States, and its county seat. The population was 20,421 at the 2020 census. It is approximately 36 miles (58 km) north of Dayton and 100 miles (160 km) south of Toledo, and is a part of the Dayton metropolitan area. The city is named after English poet Philip Sidney, and many of Sidney's elementary schools are named after famous writers, including Ralph Waldo Emerson, Henry Wadsworth Longfellow, and John Greenleaf Whittier. Sidney was the recipient of the 1964 All-America City Award. In 2009, it was the subject of the documentary film 45365.

The People's Federal Savings and Loan Association is a historic bank building at 101 East Court Street in Sidney, Ohio, designed by Chicago architect Louis Sullivan. It was designed and built in 1917 for use by Peoples Federal Savings and Loan Association, which still operates out of it. It is one of several banks designed by Sullivan between 1908 and 1919 for small Midwestern U.S. communities. The building is listed on the National Register of Historic Places as a National Historic Landmark.

The Whitby Mansion is a historic mansion in Sidney, Ohio, United States. Built in 1890, it was originally the home of W.H.C. Goode, a Sidney industrialist. Descended from one of the First Families of Virginia, Goode first purchased property in the vicinity of Sidney in 1849. Having gained complete ownership of the leading steel scraper manufacturing company in the United States in 1877, Goode began to build his mansion on Sidney's northern side in the late 1880s. The resulting mansion, designed by an unknown architect, features massive stone walls that are topped with a slate roof. Elements of the Jacobethan and Châteauesque styles are combined with the Tudor Revival style of architecture. By the mid-1970s, the mansion had ceased to be a house; it had been purchased by The Way International and converted into a historic archive and art museum. Today, the property is owned by GreatStone Castle Resorts, which operates it as a bed and breakfast. In 1976, the Whitby Mansion was listed on the National Register of Historic Places because of its historically significant architecture. It was seen as historically significant primarily as a leading example of the architecture of the rich in late nineteenth-century America.

The Fulton Farm, also known as "River Bend Farm," is a historic farmstead in Shelby County, Ohio, United States. Located on the southern side of the city of Sidney, the farm is composed of five buildings spread out over an area of approximately 2 acres (0.81 ha). Built primarily in 1848, the distinctively Gothic Revival farm buildings are a leading element of Shelby County rural architecture; few pre-Civil War farmhouses elsewhere in the county are more elaborate. Besides the farmhouse, the complex includes four less important buildings, two brick and two wooden: a smokehouse, a carriage house, and two smaller barns. Prominent farmer Isaac Fulton built the one-and-one-half story farmhouse and other buildings for his wife, the former Jane Taylor, soon after their 1848 wedding. The construction, which was not finished until 1850, was almost entirely Fulton's work; he even made the bricks by himself. Fulton used an unusual floor plan; the house's footprint is asymmetrical, and its windows are a mix of trabeated and traditional Gothic Revival styles. A rectangle large enough to support the entire house would measure approximately 50 feet (15 m) by 42 feet (13 m). In 1979, the Fulton Farm was listed on the National Register of Historic Places. It qualified for inclusion on the Register because of its impact on two different areas of local history: its well-preserved historic architecture and its place in the development of agriculture in central Shelby County.

The Sidney Walnut Avenue Historic District is a neighborhood and historic district on the western side of the city of Sidney, Ohio, United States. Located a short distance northwest of the city's downtown, the Walnut Avenue District has been Sidney's premier residential neighborhood since its creation in the late nineteenth century. Fifteen houses compose the district, which is located on the sides and top of a small hill. Twelve of the fifteen are located along Walnut Avenue, and the other three line North Street; they were built in such styles as Queen Anne, Greek Revival, and Italianate. Common construction materials include stone foundations, brick walls, and slate roofs. Although the oldest property in the district dates back to 1847, and the newest to 1913, the majority of the district's houses were built in the last years of the nineteenth century, and most houses in the neighborhood that are significantly older were extensively modified at that time. During the late nineteenth century, Sidney was passing through a period of transformation: since its establishment in 1820, its identity was that of a small county seat in an agricultural region, but by the end of the century, institutions such as the People's Federal Savings and Loan Association were causing it to gain prominence in commerce, industry, and banking. Leading members of the city's society, such as factory owners, bankers, and businessmen built large homes on the hillside along Walnut Avenue, and it became known as the city's élite residential neighborhood. Among its most important residents were jeweller Edward Kah, merchant Elias Griffis, garden company owner Bernard Wagner, and educator Herbert McVay. At the end of 1983, the Sidney Walnut Avenue Historic District was listed on the National Register of Historic Places. The district qualified for inclusion under two separate criteria: it was eligible because of its place in local history, and it was similarly eligible because of the distinctive historic architecture of the buildings within its boundaries. It was the last of Shelby County's three historic districts to be added to the Register, following the Lockington Locks by fourteen years and the Sidney Courthouse Square by three years.

Clinton Township is one of the fourteen townships of Shelby County, Ohio, United States. The 2020 census found 20,317 people in the township.

Sidney High School is a comprehensive, college-prep oriented public high school in Sidney, Ohio, which is located 40 miles (64 km) north of Dayton, Ohio, on Interstate 75. It is the only public high school in the Sidney City Schools district. Sidney High School average enrollment is approximately 1,000, with approximately 200 students attending the Upper Valley Career Center in Piqua, OH. The average graduating class size is approximately 250 students. Sidney City Schools offers more than 70 extracurricular activities for students from 6th grade on. Sports include: football; boys & girls soccer; boys & girls basketball; boys baseball; girls fastpitch; boys & girls tennis; co-ed track; co-ed bowling; co-ed swimming; co-ed cross country; girls volleyball; co-ed wrestling; weight lifting; cheerleading; marching band; and golf. Clubs include: Academia, Breakfast Club, Key Club, Art Club, FFA, FCCLA; German Club; SADD; Student Government; National Honor Society; DECA; and Intramural Athletics.

Lehman Catholic High School is a private co-educational high school located in Sidney, Ohio, United States. It is owned and operated by the Roman Catholic Archdiocese of Cincinnati and served by the Sisters of Charity of Cincinnati. The school is named after Edward C. Lehman, who served as pastor of Holy Angels Parish for 34 years and oversaw the construction of Holy Angels High School. Lehman Catholic was established in 1970 as a result of the consolidation of Holy Angels High School, established in 1889, and Piqua Catholic High School, established in 1924. The school's colors are royal blue and gold and athletic teams are known as the Cavaliers. As of 2022, the principal is Veronica Gaier.

Sidney City Airport (FAA LID: SCA), formerly known as Sidney Municipal Airport, is a city-owned public-use airport located three nautical miles (6 km) south of the central business district of Sidney, a city in Shelby County, Ohio, United States. It is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a general aviation facility.

Pasco is an unincorporated community in Shelby County, in the U.S. state of Ohio.