East of Knuth Road, Boynton Beach Boulevard enters incorporated Boynton Beach and becomes more commercial, with the Boynton Beach Mall a few blocks to the north, and SR 804 intersecting with Congress Avenue, which like Military Trail is a state-turned-county road. It continues east, now with a speed limit of , heading for an interchange with Interstate 95 (I-95), entering downtown Boynton Beach east of the interchange, with the road ceasing to be a divided road east of NW 4th Street.
East of Knuth Road, Boynton Beach Boulevard enters incorporated Boynton Beach and becomes more commercial, featuring the Boynton Beach Mall a few blocks to the north, and SR 804 intersecting with Congress Avenue, which like Military Trail is a state-turned-county road. It continues east, now at , heading for an interchange with Interstate 95 (I-95), entering downtown Boynton Beach east of the interchange, with the road ceasing to be a divided road east of NW 4th Street.