Washington Township, NJ Real Estate & Homes For Sale. 1  58 Hillcrest Ave, Washington Township, NJ 07882. 2  51 Hillcrest Ave., Washington Township, NJ 07882. 3  163 Jackson Valley Rd, Washington Township, NJ 07882.  180 Belvidere Ave, Washington Township, NJ 1  07882. 78 Washington Square Cir, Washington Township, NJ 07882.