Warren County, NJ homes and real estate

Warren County is in northwestern New Jersey along the Delaware River, with 109,632 residents in the 2020 census across 22 municipalities. Its county seat is Belvidere, and it is the only New Jersey county counted in the Lehigh Valley metro area of Allentown, Bethlehem and Easton rather than New York's or Philadelphia's.

On November 2, 2026, my search showed 510 active Warren County listings of all types, for sale and for rent.

I am Bogdan Nicolae Rus, a licensed New Jersey REALTOR® with eXp Realty (license #2186044). My day-to-day focus is Hudson County, and I also help buyers, sellers and renters in Warren County.

My search pulls from the Hudson County MLS and Garden State MLS, so it may not show every home on the market in Warren County. If you spot a home somewhere else, send me the address and I will look into it.

Bogdan Nicolae Rus, REALTOR® · Last updated November 2, 2026 · County facts: Wikipedia, Warren County, citing the 2020 U.S. census. Listing count: my live MLS search, November 2, 2026. Photo: the Delaware Water Gap, Nicholas, CC BY 2.0.

What should you know about Warren County?

Warren County has 22 municipalities. Phillipsburg is the most populous, with 15,249 residents in the 2020 census, and Hardwick Township covers the most land. The county borders the Delaware River and Easton, Pennsylvania, to the west, and the Delaware Water Gap National Recreation Area.

Taxes and zoning are set town by town, so I check them for the specific home, not the county as a whole.

How can I help you in Warren County?

I can help you buy, sell or rent in Warren County, with the whole process in English, Romanian or Spanish.

• Buying: see how I work with buyers, what attorney review means in New Jersey, and your likely closing costs.
• Selling: start with a free home valuation and the sale proceeds calculator.
• Renting: see renting with me.

Frequently asked questions