Municipal Offices
169 Old Turnpike Road
Califon, NJ 07830
908-439-0022
The Califon mailing address does not mean the municipal complex is in Califon Borough.
Historic villages, preserved farmland, wooded hills, equestrian country and the distinctive Oldwick center give this northeastern Hunterdon County township a strongly rural identity.
Tewksbury traces its early European settlement to the 1700s and became a township by Royal patent on March 11, 1755 after separating from Lebanon Township. Oldwick was historically known as New Germantown; the name changed during the World War I era. Mountainville, Pottersville, Fairmount and Cokesbury also contribute to the township's historic rural landscape.
Today Tewksbury covers about 31.7 square miles and had 5,870 residents in the 2020 Census. Forests, farms and preserved open space occupy much of the township, while small village centers provide local services without changing the area's low-density character.



169 Old Turnpike Road
Califon, NJ 07830
908-439-0022
The Califon mailing address does not mean the municipal complex is in Califon Borough.
Emergency: 911
Non-emergency: 908-439-2503
Tewksbury relies on multiple volunteer fire companies and rescue providers serving different portions of the township. For emergencies call 911.
31 Old Turnpike Road
Oldwick, NJ 08858
The library occupies historic Barnet Hall Academy in the Oldwick village center.
109 Fairmount Road East
Califon, NJ 07830
Township elementary school; the Califon postal address is outside the borough boundary.
171 Old Turnpike Road
Califon, NJ 07830
Serves the township's upper elementary/middle-grade students.
256 County Road 513
Glen Gardner, NJ 08826
Tewksbury high-school students attend the North Hunterdon-Voorhees Regional High School District.
A major township open-space and recreation property with trails and a landscape that reflects Tewksbury's agricultural heritage.
Wooded open space and trails near Old Turnpike Road.
Community recreation fields serving the Oldwick area.
Open space along Fairmount Road East.
Preserved land near the Pottersville area of the township.
7 Rockaway Road, Oldwick. A preserved property with extensive trails, gardens and nature-, arts- and wellness-oriented community programming.
One of the township's protected natural areas.
Additional preserved township lands that help maintain Tewksbury's rural landscape.
Tewksbury's best-known village, with historic churches, civic buildings, local businesses and residential streets centered around Old Turnpike Road.
A historic settlement dating to the late 18th century in the township's western area.
A historic milling village that spans several municipalities and three counties. Only part of Pottersville lies in Tewksbury Township.
A historic crossroads village divided between Tewksbury and Clinton townships.
83 Old Turnpike Road, Oldwick. A long-running adaptive horsemanship and therapy organization serving children and adults with special needs.
Local equestrian and trail traditions remain an important part of the township's community identity.
Tewksbury borders municipalities in Hunterdon, Morris and Somerset counties. Nearby and bordering communities include Califon Borough, Clinton Township, Lebanon Township, Readington Township, Washington Township in Morris County, Chester Township in Morris County and Bedminster Township in Somerset County.
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