From Sterling, Route 62 passes through the southern end of the town of Lancaster before entering Clinton.

It crosses the old Middlesex Turnpike before arcing northward to meet Route 3A just south of the Billerica town line.

It becomes concurrent with Route 3A southward for half a mile before turning northward, heading into the town of Wilmington.

It shares a quarter-mile long concurrency with Route 28 before continuing eastward into Essex County and the town of Middleton.

In Middleton, Route 62 heads north one final time, sharing a short wrong-way concurrency with Route 114 before turning eastward, crossing the Ipswich River before finally turning southeastward into the town of Danvers.