Stephen Simmons House

Hounsfield is a town in Jefferson County, New York, United States. The population was 3,466 at the 2010 census. The name of the town is from Ezra Hounsfield, a land agent and land owner. He once owned the Southern part of the township. The town was named by Augustus Sacket. Hounsfield is in the western part of the county and is west of Watertown.

Dr. Samuel Guthrie House is a historic home located at Hounsfield in Jefferson County, New York. The home comprises a rectangular two-story, five-by-two-bay, brick Federal style core building and a rectangular one-story rear wing. The rear wing is in three sections: a section constructed around 1822, an addition from the early 20th century, and a third from about 1910. It was listed on the National Register of Historic Places in 1989.

Ressequie Farm is a historic farm complex located at Hounsfield in Jefferson County, New York. The farm complex consists of a 1+1⁄2-story gabled ell, L-shaped farmhouse built about 1840 in the Greek Revival style and five outbuildings. Contributing outbuildings are a cattle barn, granary, pig house, chicken coop, and former carriage house.It was listed on the National Register of Historic Places in 1989.

District School No. 20 is a historic one-room school building located at Hounsfield in Jefferson County, New York. It is a one-story, rectangular one room structure built about 1835 of rubble Chaumont limestone. It was last used as a school in 1938. It was listed on the National Register of Historic Places in 1989.

Shore Farm, historically known as "Shore Farm Camp," is a historic farm complex located at Hounsfield in Jefferson County, New York. The farm complex consists of the Luff/Wardwell House, a former tenant house/milk house, and a cattle barn. The house is a stone and wood-frame structure dating to about 1822 and enlarged about 1895. Also on the property are non-contributing cabins and cottages. It was listed on the National Register of Historic Places in 1989.

Madison Barracks was a military installation established in 1813 or 1815 at Sackets Harbor that was built for occupation by 600 U.S. troops, a few years after the War of 1812. It was named for James Madison who had just completed his presidency in 1817. Construction began under the name Fort Pike. The facility is a National Historic Landmark and a historic district located in Jefferson County, New York. The district includes 86 contributing buildings and two contributing structures. It includes the stone hospital, bakery, several warehouses known as "Stone Row," a stone water tower, and a series of brick buildings constructed in the 1890s as officers quarters, barracks, mess hall, and weapons storage and repair building. Madison Barracks was used as a Citizens' Military Training Camp between the world wars. Madison Barracks was the U.S. Army's primary post in upstate New York until Pine Camp (later renamed Fort Drum) was opened in 1908. Madison Barracks remained an active military installation through the end of World War II, to 1947. General Mark W. Clark, a senior commander during World War II, was born at Madison Barracks in 1896 while his father Charles Carr Clark was stationed there. The grounds and remaining buildings of Madison Barracks are now part of a combined residential and business development. The Madison Barracks site was listed on the National Register of Historic Places in 1974.

Sulphur Springs Cemetery is a historic rural cemetery located at Hounsfield in Jefferson County, New York. It is a cemetery that includes both the original burial ground dating to about 1800 and the much larger "romantic landscape" expansion dating to about 1879. The earliest extant stones date from 1812.It was listed in the National Register of Historic Places in 1989.

District School No. 19 is a historic one-room school building located at Hounsfield in Jefferson County, New York. It is a one-story, rectangular one room structure built about 1837 of rubble Chaumont limestone. It was last used as a school in 1938.It was listed on the National Register of Historic Places in 1989.

Sackets Harbor (earlier spelled Sacketts Harbor) is a village in Jefferson County, New York, United States, on Lake Ontario. As of the 2020 census, Sackets Harbor had a population of 1,351. The village was named after land developer and owner Augustus Sackett, who founded it in the early 1800s. Sackets Harbor is in the western part of the town of Hounsfield and is west of Watertown. The heart of the village, with a Main Street and well-preserved 19th century buildings, has been recognized as the Sackets Harbor Village Historic District and listed on the National Register of Historic Places in 1983. To support the War of 1812, the US Navy built a major shipyard and its headquarters for the Great Lakes at the village. Within a short period, more than 3,000 men worked at the shipyard. The Army constructed earthworks, forts, barracks and supporting infrastructure to defend the village and navy shipyard, and its troops also camped in the village. The thousands of military personnel made it seem like a city. By the fall of 1814, this was the third-largest population center in the entire state, after Albany and New York City. With its strategic protected harbor on Lake Ontario and military installations, the village had national importance through the 19th century. Soon after the war, the Army strengthened its defenses on the northern frontier by constructing Madison Barracks. The village also developed a commercial shipyard and many business connections to communities around the Great Lakes. Its businessmen were also connected to bases in the major markets of Louisville, Kentucky, and New Orleans. In 1817 a consortium of local businessmen supported construction of the 240-ton Ontario, the first US steamboat on the Great Lakes. In July 1834, the commercial schooner Illinois from Sackets Harbor was the first to enter the harbor of the new settlement of Chicago. Sackets Harbor Battlefield State Historic Site commemorates a battle during the War of 1812 and the contribution of the area to the United States defense.

Elisha Camp House is a historic home located at Sackets Harbor in Jefferson County, New York. It was built about 1808–1815 and is a 2+1⁄2-story red brick building that is a remarkably well preserved example of an elegant Federal-style dwelling. It features flat, geometric carving; Adamesque ornament; Palladian windows; elliptical fanlights; and a quality of reserve and refinement. It was listed on the National Register of Historic Places in 1973.

Sackets Harbor Village Historic District is a national historic district located at Sackets Harbor in Jefferson County, New York. The district includes 143 contributing buildings, among a total of 156 buildings in the historic central core of the village. The majority of the buildings were constructed during the first century of European-American settlement, 1801 to 1900. It was listed on the National Register of Historic Places in 1983.

Star Grange No. 9 is a historic grange hall located at Hounsfield in Jefferson County, New York. It was built in 1931 and is a two-story, three by five bay light wood-frame building on a foundation of concrete block.It was listed on the National Register of Historic Places in 1989.