Warren County Guide

Warren County Historic Places

Explore Warren County’s historic homes, mills, furnaces, churches, museums, courthouses, canal-era buildings, and heritage landmarks across Phillipsburg, Oxford, Belvidere, Blairstown, Hazen, and the New Jersey Skylands.

Warren County Heritage Overview

Warren County came into existence in 1825, when the area was separated from Sussex County. The county was named for Dr. Joseph Warren, remembered for his devotion to the Revolutionary cause and his death at the Battle of Bunker Hill.

The original Warren County historic page also notes that the county began with the townships of Greenwich, Hardwick, Independence, Knowlton, Mansfield, Oxford, and Pahaquarry, from which the present 22 municipalities were carved. Belvidere became the county seat after General Garrett D. Wall donated grounds for a county courthouse and public square.

Early County History

The county’s story connects Revolutionary-era settlement, early New Jersey government, the Belvidere county seat, and the transformation of the original townships into today’s Warren County municipalities.

Industrial Heritage

Phillipsburg, Oxford, canals, iron works, foundries, furnaces, mills, and railroad-linked buildings are important parts of the county’s historic landscape.

Historic Architecture

The directory includes mansions, churches, stores, townhouses, courthouses, mills, and museum sites that preserve Warren County’s older civic and commercial character.

Skylands Heritage

From Belvidere and Oxford to Blairstown and Phillipsburg, the county’s landmarks help tell the story of northwest New Jersey’s farms, villages, industry, and transportation routes.

Warren County Heritage Resources

Featured Warren County Historic Places

Use this quick reference to scan the full historic directory preserved from the original Warren County page.

  • Dale Estate
  • First Presbyterian Church of Oxford
  • Lander-Stewart Mansion
  • Presbyterian Manse
  • S.A. Comstock Building
  • Shippen Manor
  • Stites-Lander Townhouse
  • Stites-Thomas Store
  • The Old Mill
  • Oxford Historic District House #3 — Grist Mill / Colonial Methodist Church
  • Oxford Historic District House #4 — Oxford Furnace 1
  • Oxford Historic District House #5 — Foundry
  • Warren County Court House

Warren County Historic Places Directory

The listings below preserve the original Warren County historic-site content and image references in a cleaner NJTGO county-page format.

Dale Estate in Warren County

Dale Estate

South Main Street, Phillipsburg, NJ 08865

Photo by Alan Edelson, courtesy of HMdb.org.

William Dale, railroad overseer, purchased this land from the Bel-Del Railroad in 1861. The original home to the rear overlooked the railroad turntable, so Dale could view his workers. This home has 18 rooms. Later, it was the home and dental office of Dr. Harry Souders and son for 70 years.

First Presbyterian Church of Oxford in Warren County

First Presbyterian Church of Oxford

Brass Castle Road, Hazen, NJ 07863

Photo by Alan Edelson, courtesy of HMdb.org.

Built in 1806, it is the oldest Presbyterian Church in Warren County.

Lander-Stewart Mansion in Warren County

Lander-Stewart Mansion

South Main Street, Phillipsburg, NJ 08865

Photo by Alan Edelson, courtesy of HMdb.org.

The town’s only brownstone was built in a grand manner to resemble those of East Side Manhattan. Exotic woods, marble, tile, and glass brought back from Stewart’s European travels line its interior. The front doors are hand-carved cypress from Lebanon. The first floor office later housed Phillipsburg Telephone Company in the 1930s.

Presbyterian Manse in Warren County

Presbyterian Manse

South Main Street, Phillipsburg, NJ 08865

Photo by Alan Edelson, courtesy of HMdb.org.

Constructed as a home for clergy for the Phillipsburg Presbyterian Church in 1858, this magnificent stone structure was then located at Main and Market Streets. The Manse was sold to attorney John F. Dumont in 1883 and has been used primarily as law offices since. It was the last office of Hon. Frank S. Thompson, Esq., New Jersey Assemblyman and State Committeeman.

S.A. Comstock Building in Warren County

S.A. Comstock Building

South Main Street, Phillipsburg, NJ 08865

Photo by Alan Edelson, courtesy of HMdb.org.

Built in 1860, the Comstock family owned many properties, including this building, which was first used as a boarding house, and the famous Lee House located at Union Square. This building was later used and purchased by the Malaska Council, a once powerful social club of mostly foundry workers. The “Fist & Hammer” insignia remains above. In its 1880s heyday, there were 27 societies in town.

Shippen Manor in Warren County

Shippen Manor

Belvidere Avenue, Oxford, NJ 07863

Photo by Alan Edelson, courtesy of HMdb.org.

Built by Joseph and William Shippen, owners of Oxford Furnace, Shippen Manor served as an iron company residence for 200 years. It is a state and national historic site.

Stites-Lander Townhouse in Warren County

Stites-Lander Townhouse

South Main Street, Phillipsburg, NJ 08865

Photo by Alan Edelson, courtesy of HMdb.org.

Originally occupied by William Stites, Phillipsburg tailor, this Federal-style townhouse was later the home of prominent resident John Lander, co-founder of the Warren Iron Foundry and the town postmaster. Hailed “the oldest living postmaster” in 1882, the house was remodeled in Italianate grandeur in 1875 and later served as the last law office of State Sen. Wayne Dumont.

Stites-Thomas Store in Warren County

Stites-Thomas Store

South Main Street, Phillipsburg, NJ 08865

Photo by Alan Edelson, courtesy of HMdb.org.

First built as a grain sale and transfer station from the Morris to Lehigh Canal, horse-drawn trailers were driven into the store for grain loading. The grain was then put on canal boats and transported up the Lehigh. In the 1870s, it was used as a carriage shop. The sidewalk remains curbless today, reminiscent of easy access for horse, trailer, and carriage.

The Old Mill in Warren County

The Old Mill

Main Street, Blairstown, NJ 07825

Photo by Alan Edelson, courtesy of HMdb.org.

Acquired by Blair Academy in 1903, Blair Lake and The Falls were completed in 1906. The Old Mill and other sites at Blair Academy have been placed on the State and National Register of Historic Places by the United States Department of the Interior.

Oxford Historic District House #3 — Grist Mill / Colonial Methodist Church in Warren County

Oxford Historic District House #3 — Grist Mill / Colonial Methodist Church

Washington Avenue, Oxford, NJ 07863

Photo by Alan Edelson, courtesy of HMdb.org.

The grist mill was built in 1813 and became the Colonial Methodist Church in 1913.

Oxford Historic District House #4 — Oxford Furnace 1 in Warren County

Oxford Historic District House #4 — Oxford Furnace 1

Washington Avenue, Oxford, NJ 07863

Photo by Alan Edelson, courtesy of HMdb.org.

Oxford Furnace #1 construction started in 1741, first blast was in 1743, and it was blown out in 1884.

Oxford Historic District House #5 — Foundry in Warren County

Oxford Historic District House #5 — Foundry

Washington Avenue, Oxford, NJ 07863

Photo by Alan Edelson, courtesy of HMdb.org.

The foundry produced train car wheels in the mid-1800s.

Warren County Court House in Warren County

Warren County Court House

2nd Street, Belvidere, NJ 07823

Photo by Alan Edelson, courtesy of HMdb.org.

Built in 1826, the Warren County Court House was the location of early sensational trials and public hangings. Its present colonial appearance was retained in the 1959–1960 restoration.

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