Hoboken Water Hardness & Quality Report (2026)

Hoboken, New Jersey, in Hudson County on the Hudson River directly across from Midtown Manhattan — the 'Mile Square City,' birthplace of Frank Sinatra, home of the first organized baseball game (Elysian Fields, 1846), Stevens Institute of Technology, and one of New Jersey's most densely populated and rapidly gentrified urban communities — draws its municipal water supply from the Passaic River watershed via Suez Water New Jersey (formerly United Water), distributed through the Hudson County urban water system. Water hardness in Hoboken measures 97.5 mg/L — classified as moderately soft.

Hoboken's moderate softness — notably softer than most New Jersey communities — reflects the Hudson County urban distribution characteristics. Hoboken receives its supply through the Suez Water New Jersey Hudson County transmission grid, which draws from the Passaic River watershed. The Passaic River supply at its treatment point is moderately soft, and the Hoboken distribution zone — despite the city's very aged cast-iron infrastructure from the 1890s–1920s Hoboken industrial era — shows the moderate 97.5 mg/L. Hoboken's proximity to the Hudson River (a moderately soft river) and the specific transmission routing of the Suez supply into Hoboken likely contribute to the moderate softness.

With hardness at 97.5 mg/L, Hoboken residents enjoy moderately soft water with minimal scale challenges. Suez Water New Jersey consistently delivers water meeting all New Jersey DEP and EPA Safe Drinking Water Act requirements.