Washington Boro is in Warren County, New Jersey. Its tax roll lists 170 blocks and 2,389 lots.
170 blocks · Warren County
The median assessed value in Washington Boro is $143,500. 97 sales were recorded in the last 12 months, not counting nominal transfers, at a median price of $350,000. The most recent sale on record was 114 Harding Drive, Washington, NJ 07882, for $233,750 on Oct 1, 2026. 8 foreclosure cases are open.