- Western Terminus:
- George Street (CR 527) and Commercial Avenue in New Brunswick
- Eastern Terminus:
- Memorial Parkway (NJ 18) in New Brunswick
- 0.81 miles
NJ 172 is a short state route that consists of a section of George Street in New Brunswick passing through the campus of Rutgers University. George Street takes on the NJ 172 designation at Commercial Avenue and runs east for a few blocks through the campus before curving to the north and then ending at Memorial Parkway (NJ 18). NJ 172 is multiplexed with CR 527 for its entire length.