Hunter-Oliphant Block

Oswego City Hall is a historic city hall located at Oswego in Oswego County, New York. It was built in 1870 and is a 2+1⁄2-story masonry, mansarded structure with a distinctive central clock tower. It was designed by architect Horatio Nelson White (1814–1892).It was listed on the National Register of Historic Places in 1973.

U.S. Customhouse is a historic customhouse located at Oswego in Oswego County, New York. It is a three-story, flat roofed, rectangular stone building flanked by identical two-story wings. The original structure was built in 1858 and the wings added in 1935. It was designed by architect Ammi B. Young (1798–1874).It was listed on the National Register of Historic Places in 1976.

The Buckhout–Jones Building is a historic commercial building located at 5-13 West Bridge Street in Oswego, Oswego County, New York.

Tanner Block is a historic commercial building located at Oswego in Oswego County, New York. It was built in 1890 and is a four-story brick structure constructed in an eclectic Victorian style. It measures 44 feet wide and 100 feet deep. It originally housed a hardware store. It was updated in 1926 to house a furniture store and again updated in the 1960s.It was listed on the National Register of Historic Places in 2009.

Market House, also known as The Market Hall and The D.L.& W. Hall, is a historic market building located at Oswego in Oswego County, New York. It was built in 1835 and is a massive brick and stone structure overlooking the Oswego River. The structure originally housed several government entities including city hall. A new city hall was constructed in 1870 and completed in 1872. A section of the basement is believed to have been used as a jail. In 1864 the city sold it to the Oswego and Syracuse Railroad, that used it for the next 80 years as office and storage space. The railroad upgraded the building with a bracketed cornice and elaborate cupola.It was listed on the National Register of Historic Places in 1974. The structure is privately owned, and a bar located on the north-most section of the first floor, named "Old City Hall" has been there for many years.

Oswego Theater, now known as Oswego 7 Cinemas, is a historic movie theater located at Oswego in Oswego County, New York. It was designed in 1940 in the Art Deco style and opened in 1941. The front features bands of yellow, red, and dark red brick that create broad horizontal and perpendicular belts. A pair of cast stone, accordion pleated vertical stripes are included on the facade. It was designed by architect John Eberson (1875–1964).It was listed on the National Register of Historic Places in 1988.

Oswego Armory is a historic National Guard armory located at Oswego in Oswego County, New York. It is a brick and stone castle-like structure built in 1906–1908. It was designed by State architect George L. Heins. It consists of a 2+1⁄2-story administration building with an attached large, gable-roofed drill shed. The building features a 5-story octagonal tower at the northwest corner.It was listed on the National Register of Historic Places in 1988.

Kingsford House is a historic home located at Oswego in Oswego County, New York. It is a large 2+1⁄2-story brick residence. Built about 1870 in the Italianate style, it was extensively reconfigured and enlarged in 1912–1913 in the Tudor Revival style. Along the north and east edge of the property is a terrace wall built of cut limestone blocks and topped by a cast and wrought iron fence.It was listed on the National Register of Historic Places in 1997.

Woodruff Block is a historic commercial building located at Oswego in Oswego County, New York. It is a four-story masonry structure built about 1840 and modified between 1900 and 1930. It features rectangular cut stone columns with Doric capitals in the Greek Revival style. When built it was located strategically at the terminus of the 1828 Oswego Canal.It was listed on the National Register of Historic Places in 1995.

Kingsford Historic District is a national historic district located at Oswego, Oswego County, New York. It encompasses 76 contributing buildings in a predominantly residential section of Oswego. It developed between about 1830 and 1910, and includes notable examples of Italianate, Romanesque Revival, Colonial Revival, and Tudor Revival style architecture. Located in the district is the separately listed Kingsford House. Other notable buildings include the former St. Matthew's Lutheran Church (1888), 40 West Oneida Street (1898) designed by Claude Fayette Bragdon, the former Public School #3 (1860s), and West Baptist Church (1867) designed by Andrew Jackson Warner.It was added to the National Register of Historic Places in 2014.

Oswego City Library is a historic library building located at Oswego in Oswego County, New York. It has also been known as the Oswego School District Public Library. It was built in about 1855 and is a two-story brick structure over a full basement. It features a distinctive castellated style with exterior battlements, machicolations, tower, turrets, corbels, and arcaded windows. It was a gift from Gerrit Smith, who gave $25,000 for the building construction and $5,000 for books.The library is credited for being the oldest public library in the United States that maintains operations out of its original building.It was listed on the National Register of Historic Places in 1971.

Standard Yarn Company Building is a historic factory building located at Oswego in Oswego County, New York. It is a brick structure, measuring 200 feet along the street and constructed in three sections between 1897 and 1911. It is of common mill construction with load bearing masonry walls and wooden floors and joists supported by heavy wooden posts.It was listed on the National Register of Historic Places in 2008.