Where we serve
Warren County
Newest Listings
Buying or Selling a Home in Warren County, NJ
Warren County sits along 52 miles of the Delaware River in western New Jersey. It has 22 towns, and the county says nearly 43,000 acres are parks, forest and conservation land. Belvidere is the county seat, and Phillipsburg and Hackettstown are the largest towns.
Start with the newest listings above. Then use the facts below to compare towns, taxes, commutes and outdoor space. When you want a shortlist, tell us what matters to you or call (973) 577-9442.
Warren County at a glance
Here are the numbers buyers ask about first. They give you a quick picture of the county before you look at one house.
- Population: 109,632 people in the 2020 Census (U.S. Census).
- Towns: 22 municipalities. Belvidere is the county seat.
- Typical home value: $346,500 median for owner occupied homes, Census ACS 2020 to 2024 (U.S. Census).
- Property taxes: $8,209 average residential tax bill in 2025 (NJ Division of Taxation). Your bill depends on the town and the assessment, so check the exact property.
- Commute: 34.0 minutes average trip to work (U.S. Census).
Getting around
- Drive: Interstate 78, Interstate 80, US Route 22, Route 57 and Route 46 (Warren County).
- Train: Hackettstown Station is on the NJ Transit Morris and Essex and Montclair Boonton lines, with 99 free parking spaces (NJ Transit).
- Local shuttles: Warren County Transportation runs between Phillipsburg, Washington and Hackettstown (Warren County).
Parks and outdoor space
- Delaware Water Gap National Recreation Area along the river (Warren County).
- Worthington State Forest, with 22 miles of trails, Sunfish Pond and Mount Tammany (NJ DEP).
- Jenny Jump State Forest and Stephens State Park on the trout stocked Musconetcong River (NJ DEP).
- Allamuchy Mountain State Park and Merrill Creek Reservoir, a 650 acre reservoir with a 290 acre preserve (Merrill Creek).
Schools
The state lists 24 school district entries for Warren County, including a county vocational district and a charter school. Great Meadows, North Warren and Warren Hills are regional districts, while towns like Phillipsburg, Hackettstown and Belvidere run their own. Always confirm the school district for the exact address with the district office before you buy (NJ Department of Education district list).
Towns in Warren County
Warren County has 22 towns, and each one has its own taxes, schools and feel. Here are some of the largest, so you can see where people live.
| Town | 2020 population |
|---|---|
| Phillipsburg | 15,288 |
| Hackettstown | 10,251 |
| Lopatcong Township | 8,777 |
| Mansfield Township | 7,787 |
| Washington Borough | 7,310 |
| Washington Township | 6,496 |
| Blairstown Township | 5,704 |
| Greenwich Township | 5,478 |
| Belvidere | 2,521 |
Source: 2020 Census, New Jersey state municipal data. Ask us for current prices in any town.
Questions buyers ask us about Warren County
- Will the home have a well or septic? Many homes here do. New Jersey requires a private well water test when a home with a well is sold (NJ Department of Health). Ask for septic records and plan an inspection.
- What will my taxes be? The 2025 county average is $8,209, but towns vary: Phillipsburg $5,256, Lopatcong $7,141, Hackettstown $9,665 and Greenwich $11,080 (NJ Division of Taxation).
- Can I take the train? Yes, from Hackettstown. The lot has 99 free spaces, so ask how early it fills.
- What is next to the land? Much of the county is forest, farms and preserved land. Ask what is protected around a property before you offer.
Looking nearby too? See our Sussex County, Morris County and Hunterdon County pages.
Plan your next step
Buying? Our buyer guide explains the process from preparation through closing. Selling? Review our selling guide and pricing approach before choosing a plan. If speed matters, request a cash-offer discussion; submitting an inquiry does not guarantee an offer or a closing date.