Clinton Hill is a neighborhood within the south-central portion of the city of Newark in Essex County, New Jersey. It takes its name from the no-longer extant Clinton Township, of which the neighborhood was once part. Its main thoroughfare is Clinton Avenue. It is roughly bounded by Irvington to the west, Interstate 78/Weequahic to the south and Avon Avenue/Spr…Clinton Hill is a neighborhood within the south-central portion of the city of Newark in Essex County, New Jersey. It takes its name from the no-longer extant Clinton Township, of which the neighborhood was once part. Its main thoroughfare is Clinton Avenue. It is roughly bounded by Irvington to the west, Interstate 78/Weequahic to the south and Avon Avenue/Springfield/Belmont to the north. At Elizabeth Avenue it overlaps South Broad Valley.