Hopewell Township is a township in Mercer County, in the U.S. state of New Jersey. Located at the cross-roads between the Delaware Valley region to the southwest and the Raritan Valley region to the northeast, the township considered an exurb of New York City in the New York metropolitan area as defined by the United States Census Bureau, while also directly bordering the Philadelphia metropolitan area, being a part of the Federal Communications Commission's Philadelphia Designated Market Area. As of the 2020 United States census, the township's population was 17,491,
The township dates back to February 20, 1700, when the area was still part of Burlington County. One of the earliest European settlers before 1710 was George Woolsey, formerly of Jamaica, Queens (in present-day New York City), whose father was one of the earliest pre-1650 settlers of what was New Amsterdam. His descendants maintained the family farm for over 200 years.
The township was formerly the name for one of two portions of of land purchased in 1714 by William Trent, and was formally set off to Hunterdon County, when that county was created on March 11, 1714. Trenton Township was formed out of this estate on June 3, 1719, later to become the City of Trenton. Hopewell Township was incorporated by Royal charter on March 1, 1755, and was re-incorporated by an act of the New Jersey Legislature on February 21, 1798, as one of the state's initial group of 104 townships. Hopewell Township became part of Mercer County at its creation on February 22, 1838. Portions of the township were taken to form Marion Township (February 22, 1838, reverted to Hopewell Township on February 14, 1839), the Borough of Pennington (January 31, 1890) and Hopewell Borough (April 14, 1891), with additional portions of the township transferred to both Pennington and Hopewell Borough in 1915.
History
Hopewell Township includes the location (now known as Washington Crossing) along the east side of the Delaware River to which George Washington and the Continental Army crossed from Pennsylvania. Once in Hopewell Township, the army marched to Trenton on December 26, 1776. The Battle of Trenton followed. Today, Washington Crossing State Park commemorates this important milestone in American history.
In May 2023, a home in the township had its roof pierced by a stony chondrite meteorite weighing . After analysis, it was found to be one of 1,100 known meteorites with an unusually low iron content.
Geography
thumb|left|Aerial view of central Hopewell Township; the northern portion of [[Pennington, New Jersey|Pennington Borough, an enclave within the township, is in the foreground]]
thumb|left|Rolling hills, forests and horse pasture in the northern portion of Hopewell Township, characterizing its mostly rural nature
According to the United States Census Bureau, the township had a total area of 58.95 square miles (152.67 km<sup>2</sup>), including 58.07 square miles (150.40 km<sup>2</sup>) of land and 0.87 square miles (2.26 km<sup>2</sup>) of water (1.48%). The lowest elevation is between 20 and 40 feet, located where Jacobs Creek joins the Delaware River in the southwestern corner of the township.
The township completely surrounds Hopewell Borough and Pennington, making it part of two of the 21 pairs of "doughnut towns" in the state, where one municipality entirely surrounds another, and the only municipality that surrounds two others. The township borders Ewing Township, Lawrence Township and Princeton in Mercer County; East Amwell Township and West Amwell Township in Hunterdon County; Montgomery Township in Somerset County; and Solebury Township and Upper Makesfield Township in Bucks County, Pennsylvania, across the Delaware River.
Ackors Corner, Baldwins Corner, Bear Tavern, Centerville, Coopers Corner, Federal City, Glenmoore, Harbourton, Harts Corner, Marshalls Corner, Moore, Mount Rose, Pleasant Valley, Stoutsburg, Titusville, Washington Crossing and Woodsville are unincorporated communities, localities and place names located within Hopewell Township. Some neighborhoods in the township include Hopewell Hunt, Brandon Farms and Elm Ridge.