Frelinghuysen Twp is in Warren County, New Jersey. Its tax roll lists 41 blocks and 1,463 lots.
41 blocks · Warren County
The median assessed value in Frelinghuysen Twp is $218,550. 30 sales were recorded in the last 12 months, not counting nominal transfers, at a median price of $408,000. The most recent sale on record was 845 Route 94, Blairstown, NJ 07825, for $7,180,000 on Aug 26, 2026. 1 foreclosure case is open.