Hillsborough is a township in Somerset County, New Jersey, situated in the Raritan Valley region between the Sourland Mountains and the Millstone River, roughly midway between New York City and Philadelphia. With about 44,000 residents, it is one of the larger municipalities in Somerset County and functions primarily as a suburban and semi-rural bedroom community within the New York metropolitan area. The township's identity is closely tied to open space. Duke Farms, a 2,700-acre former estate of the Duke family, operates as an environmental stewardship center with trails, gardens, and wildlife habitat, and it is one of the largest such preserves in the region. The Sourland Mountain Preserve offers rugged hiking across the township's western ridge, and an extensive municipal park system serves the residential neighborhoods. This balance of development and preserved land defines Hillsborough's character. Hillsborough's history reaches back to early Dutch and English settlement and a long agricultural era, and the township has evolved into a family-oriented community with a strong public school system and a mix of older neighborhoods and newer subdivisions. The commercial landscape clusters along Route 206, with larger regional shopping and dining in nearby Somerville and Bridgewater, while Princeton University and Rutgers University lie within commuting distance for work and study. Residents value Hillsborough for its schools, its open space, and its relatively accessible location. Commuters reach New York via NJ Transit's Raritan Valley Line from stations in Somerville and Raritan, and highway access via Route 206, Route 22, and Interstate 287 connects the township to the employment centers of Somerset County and beyond. The result is a community that offers a more spacious, nature-oriented alternative to denser New Jersey suburbs while remaining tied to the region's job markets.