Union Township, New Jersey

A Hunterdon Highlands community shaped by Spruce Run Reservoir, preserved open space, Revolutionary-era iron history, rural neighborhoods and the busy I-78 / Route 173 corridor.

Mailing-address note: Union Township does not have one dominant postal city. Properties and businesses inside the township commonly use Hampton, Asbury, Clinton or Pittstown mailing addresses. NJTGO verifies municipality separately from the postal name.

About Union Township

Union Township was incorporated on February 17, 1853 from part of Bethlehem Township. Its name comes from the Union Furnace ironworks established along Spruce Run in 1742. The furnace and related forge produced iron goods and supplied cannonballs during the Revolutionary War before the operation declined late in the 18th century.

The township combines very different landscapes: the I-78 and Route 173 travel corridor, residential neighborhoods near Clinton, historic rural settlements including Pattenburg and Norton, and extensive preserved land around Spruce Run Reservoir and the Clinton Wildlife Management Area.

6,5072020 Census population
6,6492025 Census estimate
18.77 sq. mi.Land area
1853Township incorporation

Union Township in Pictures

Union Township, Hunterdon County, New Jersey
The existing Union Township image is retained as part of the town's visual identity.

Government & Services

Union Township Municipal Building

140 Perryville Road
Hampton, NJ 08827
908-735-8027

The Hampton mailing address is still within Union Township.

Police

Emergency: 911

Union Township is served by the New Jersey State Police for primary police coverage. Use the township's current emergency-services information for non-emergency contacts.

Fire & EMS

Emergency: 911

Volunteer fire and rescue services cover different sections of the township. Confirm current non-emergency contacts through the township.

Recreation & Open Space

Township recreation programming centers on local fields, parks and seasonal community activities.

Schools

Union Township Elementary School

149 Perryville Road
Hampton, NJ 08827

Public school serving preschool through grade 3.

Union Township Middle School

165 Perryville Road
Hampton, NJ 08827

Public school serving grades 4 through 8.

North Hunterdon High School

1445 Route 31 South
Annandale, NJ 08801

Union Township students attend North Hunterdon High School in the North Hunterdon-Voorhees Regional High School District.

Parks, Water & Open Space

Spruce Run Recreation Area

A major state recreation destination centered on the 1,290-acre reservoir, with boating, fishing, swimming, hiking, picnicking and seasonal camping.

Finn Road Park

The township's primary active-recreation site, with baseball/softball, soccer, playground facilities, picnic space, a walking path and a longer hiking trail.

Hoffman Park

26 Baptist Church Road. A 353-acre Hunterdon County park with hardwood forest, grasslands, numerous ponds and hiking trails.

Millbrook Park

Township recreation fields off Strotz Road, including baseball/softball and soccer facilities.

Clinton Wildlife Management Area

Large state-managed open space surrounding the Spruce Run area. Follow current NJ Fish & Wildlife rules, especially during hunting seasons.

Union Forge Nature Preserve

County-preserved natural land reflecting the township's stream corridors, woodland and historic iron-industry landscape.

Historic Places & Communities

Union Furnace & Norton

The township's name comes from the Union Furnace iron operation established in 1742. The original furnace site was lost beneath the Spruce Run Reservoir, but the surrounding historic landscape remains important.

Van Syckel Historic District

A state- and National Register historic district associated with the former Union Iron Works area and surviving colonial-era structures.

Pattenburg

A historic community known for its railroad and tavern history. The Pattenburg House remains a notable local gathering place.

Perryville

The Route 173 / Perryville Road corridor has become one of the township's most active commercial and employment areas.

Entertainment & Community Destinations

Hunterdon Hills Playhouse

88 Route 173 West. The dinner theater continues to present stage productions and seasonal shows, including its long-running Christmas program.

The Grand Colonial

86 Route 173 West. A longstanding event and reception property operating in the Union Township Route 173 corridor.

Neighboring Municipalities

Union Township directly borders Alexandria Township, Bethlehem Township, the Town of Clinton, Clinton Township, Franklin Township and Lebanon Township.

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