About 15.8% of families and 17.9% of the population were below the poverty line, including 20.7% of those under age 18 and 7.4% of those age 65 or over. The eastern terminus of the Long Island Expressway is in Riverhead. The population density was 497.1 people per square mile (192.0/km2). In the beginning of the 20th century, the town saw an influx of Polish immigrants. Riverhead Tourism: Tripadvisor has 10,607 reviews of Riverhead Hotels, Attractions, and Restaurants making it your best Riverhead resource. Visit top-rated & must-see attractions. As of the census[10] of 2000, There were 10,749 households, out of which 28.1% had children under the age of 18 living with them, 54.0% were married couples living together, 10.3% had a female householder with no husband present, and 32.2% were non-families. The name signifies that the mouth of the Peconic River is in this town. Members of the board cannot serve 12 consecutive years. The Town Supervisor term is for two years and four years for council seats. The New York State Legislature divided it from the extant Southold, New York. The population was 33,506 at the 2010 census. The population was 33,506 at the 2010 census. We have reviews of the best places to see in Riverhead. European colonists purchased the "Southold land" from the local Algonquian-speaking Native Americans and Shinnecock Indian Nation in 1649. Find Riverhead apartments, condos, town homes, single family homes and much more on Trulia. Can't-miss spots to dine, drink, and feast. The news website RiverheadLOCAL began publication in 2010. The smaller hamlet of Riverhead lies within it, and is the town's principal economic center. The New York State Legislature divided it from the town of Southold, New York, which lies to the north and east. The Town of Riverhead is served primarily by Suffolk County Transit and Hampton Jitney bus routes. That means that they could take a break after serving their 12 years and then run for office once again.[11][12]. Riverhead is the county seat of Suffolk County.There is also a smaller hamlet of Riverhead, which lies in the town.The town was created in 1792 as part of developing new jurisdictions after the American Revolution. The poor western sections of Southold, with no harbor and little commerce, were thus divided. As of the census[10] of 2010, there were 13,506 people and 15,424 households residing in the town. The town of Riverhead contains a minor private-use airport known as the Calverton Executive Airpark, originally the Naval Weapons Industrial Reserve Plant, Calverton. The Long Island Rail Road's Main Line is the sole line within the Town of Riverhead. Since 1727, Riverhead has been the county seat of Suffolk County,[4] though most county offices are in Hauppauge. The average household size was 2.50 and the average family size was 3.01. A mix of the charming, modern, and tried and true. The east town line is the border of the town of Southold. By 1902, its approximate population was 2,500.[8]. Riverhead has a town council government. Search 27 Rental Properties in Riverhead, New York. If you are a resident of another country or region, please select the appropriate version of Tripadvisor for your country or region in the drop-down menu.