SOUTH PLAINFIELD, NJ–Week five of the 2021 Union County High School Football season still has Union atop of the poll with Cranford, Summit, Hillside, and Linden rounding out the Top 5. New Providence climbed back up to No. 6 after its 42-14 victory over Brearley on Friday night while Scotch Plains-Fanwood dropped to No. 7, and Roselle moves into the poll for the first time this season. Current record in parenthesis.
- Union (4-1)
- Cranford (4-0)
- Summit (4-1)
- Hillside (3-1)
- Linden (3-1)
- New Providence (3-1)
- Scotch Plains-Fanwood (3-3)
- Westfield (2-2)
- Elizabeth (2-3)
- Roselle (3-1)
Other teams considered: David Brearley (3-1), Plainfield (1-3), Rahway (1-3), Jonathan Dayton (2-2), Governor Livingston (0-4), Roselle Park (1-2), and A.L. Johnson (1-4).
