- Warren County was formed in 1824.
- Named after Joseph Warren.
- County seat is Belvidere.
- Located in northwestern New Jersey.
- Borders Pennsylvania across the Delaware River.
- Population exceeds 109,000 residents.
- Hackettstown is the largest municipality.
- Rich agricultural heritage continues today.
- Dairy farming remains important.
- Corn and soybeans are major crops.
- Jenny Jump State Forest offers stargazing.
- Pequest Trout Hatchery stocks New Jersey waters.
- Allamuchy Mountain State Park attracts hikers.
- Stephens State Park follows Musconetcong River.
- Appalachian Trail crosses northeastern Warren County.
- Mars Wrigley operates a Hackettstown factory.
- Outdoor recreation attracts many visitors.
- Rolling hills dominate the landscape.
- Kittatinny Ridge runs through the county.
- Delaware Water Gap attracts outdoor enthusiasts.
- One of New Jersey’s most rural counties.