Question: North Salem Town Hall is a historic town hall located in a a county established in what year?

Context paragraphs:
Winston-Salem City Hall: Winston-Salem City Hall is a historic city hall located at Winston-Salem, Forsyth County, North Carolina.  It was designed by the noted architectural firm Northup and O'Brien and built in 1926.  It is a three-story, "U"-shaped Renaissance Revival building.  It is a brick building with a first floor of rusticated stone.  It has a flat roof with a limestone cornice and balustrade with shaped balusters.  The Salem town offices were housed in the Salem Town Hall until consolidation in 1912.  The building was renovated in 2000.

Old Sardinia Town Hall: Old Sardinia Town Hall, also known as the Sardinia Meeting House and First Baptist Church of Sardinia, is a historic town hall located at Sardinia in Erie County, New York.  It was built between 1828 and 1830, and is a two-story, transitional Federal / Greek Revival style frame building.  It originally housed a Baptist church congregation.  The building was renovated in the early-1930s and housed a local community hall until deeded to the town of Sardinia in 1945 for use as a town hall.  It is now home to the Sardinia Historical Society and Museum.

Babylon Town Hall: Babylon Town Hall, also known as Town of Babylon Old Town Hall, is a historic town hall located at Babylon in Suffolk County, New York.  It was built in 1917 and is a 2 ⁄ -story Classical Revival style building with a low hipped roof.  It is rectangular in shape, approximately 58 feet long and 54 feet wide.  It features a cupola at the center of the roof and a large 2-story portico with four Doric order columns.  It housed town offices until 1958, and housed district courts until 1979, when it was sold.  Old Town Hall was purchased back by the town in June 2004 and rededicated on Sunday, October 24, 2004.

North Salem Town Hall: North Salem Town Hall is a historic town hall located at Salem Center, Westchester County, New York.  It was built about 1770 by the DeLancey family as a private home.  It has been used for governmental and educational functions since 1773.  It is a three story frame building, covered in clapboard, five bays wide and three bays deep on a fieldstone foundation in a vernacular Georgian style.  It has a gambrel roof topped by a six-sided cupola.  From 1790 to 1884 it housed the North Salem Academy and, after 1886, the town offices of North Salem, New York.

Martinsburg Town Hall: Martinsburg Town Hall, also known as First Lewis County Courthouse, is a historic town hall located at Martinsburg in Lewis County, New York.  It was built in 1812 as Lewis County Courthouse and is the oldest public building in Lewis County.  It is a 2 ⁄ -story, clapboard-sided Georgian-inspired Federal-period building with architecturally sensitive Victorian-period alterations.  Italianate-style alterations were carried out in 1870 and included the pedimented projecting pavilion with palladian window.  It was at this time the building was used as the Martin Institute; in the 1890s it became the town hall.

Westchester County, New York: Westchester County is a county in the U.S. state of New York.  It is the second-most populous county on the mainland of New York, after the Bronx.  According to the 2010 Census, the county had a population of 949,113, estimated to have increased by 2.7% to 974,542 by 2016.  Situated in the Hudson Valley, Westchester covers an area of 450 sqmi , consisting of 6 cities, 19 towns, and 23 villages.  Established in 1683, Westchester was named after the city of Chester, England.  The county seat is the city of White Plains, while the most populous municipality in the county is the city of Yonkers, with an estimated 200,807 residents in 2016.

Naples Memorial Town Hall: Naples Memorial Town Hall is a historic town hall located at Naples in Ontario County, New York.  It was built in 1870-72 and is a lavish and imposing, two story rectangular brick building in the Italianate style.  It was designed by A. J. Warner & Company, the Rochester partnership of A. J. Warner and Charles Coots.  The town hall served as the center of the village and town's social and recreational activities until World War II.  Between 1942 and 1972, the building was in private hands and served a variety of commercial and light industrial uses.  In 1972, it was reacquired by the town and serves as a community center and host site for the annual Naples Grape Festival.

Centerville Town Hall: Centerville Town Hall is a historic town hall located at Centerville in Allegany County, New York.  It was completed in 1859 and is a 2-story, three-by-three-bay Greek Revival style former Presbyterian church building.  It has a large, 1-story horse / carriage house wing at the rear.  The building was used as a Grange hall from 1909 to 1927, after which it became the town hall.

Forestburgh Town Hall: Forestburgh Town Hall is a historic town hall located at Forestburgh in Sullivan County, New York.  It was built in 1929 and is a small, rectangular wood frame building sheathed in novelty wood siding.  The building measures 30 feet long and 20 feet wide.  It has a gable roof and sits on a concrete foundation.  Also located on the property is a small privy built in 1924.  The town hall is almost an exact replica of the previous town hall building that stood in the same spot from 1895 until it burned in 1928.  It remains virtually unchanged since its construction.

Salem Town Hall: Salem Town Hall is a historic town hall located at Winston-Salem, Forsyth County, North Carolina.  It was designed by noted architect Willard C. Northup and built in 1912.  It is a two-story brick building with stone, cement and wood trim.  It features a three-story corner bell tower and has Italianate and local Moravian design elements.  The building housed the Salem Town offices until it consolidated with the town of Winston in 1913, then moved to the newly built Winston-Salem City Hall in 1926.  The building continued to be used as a fire station until the mid 1970s.  It was subsequently renovated into offices.

Supporting paragraphs: North Salem Town Hall Westchester County, New York
Answer: 1683