Somerville is a borough in and the county seat of Somerset County, New Jersey, United States. As of the 2010 United States Census, the borough’s population was 12,098, reflecting a decline of 325 (-2.6%) from the 12,423 counted in the 2000 Census, which had in turn increased by 791 (+6.8%) from the 11,632 counted in the 1990 Census.

Somerville was originally formed as a town on March 25, 1863, within a portion of Bridgewater Township. Somerville was incorporated as a borough by an act of the New Jersey Legislature on April 16, 1909, based on the results of a referendum held on May 4, 1909, at which point it was fully set off from Bridgewater Township. It is home of the oldest competitive bicycle race in the United States.

Somerville was settled in colonial times primarily by the Dutch who purchased land from the English proprietors of the colony. The Dutch established their church near what is today Somerville and a Dutch Reformed minister or Domine lived at the Old Dutch Parsonage from about 1754. The early village grew up around a church, courthouse and a tavern built at a crossroads shortly after the American Revolution. The name “Somerville” was taken from four brothers of the Somerville family, William, Edward, John and James from Drishane and Castlehaven, County Cork, Ireland, who first founded the town in the 1750s. Somerville was originally a sparsely populated farming community, but rapidly grew after the completion of the railroad in the 1840s and development of water power along the Raritan River in the 1850s. Early industry included brick making from the plentiful red clay and shale on which Somerville is built.

Somerville was hit hard by Hurricane Floyd in September 1999, despite its having been downgraded to a tropical storm by the time it impacted the vicinity. The borough received a record 13.34 inches (339 mm) of rain over three days during the slow moving storm, causing significant flooding and considerable damage.

As of the 2010 United States Census, there were 12,098 people, 4,591 households, and 2,777.555 families residing in the borough. The population density was 5,189.5 per square mile (2,003.7/km²). There were 4,951 housing units at an average density of 2,123.8 per square mile (820.0/km²). The racial makeup of the borough was 65.64% (7,941) White, 12.15% (1,470) Black or African American, 0.34% (41) Native American, 11.37% (1,375) Asian, 0.07% (9) Pacific Islander, 6.34% (767) from other races, and 4.09% (495) from two or more races. Hispanic or Latino of any race were 23.75% (2,873) of the population.

Source: Wikipedia