County Route 527 (CR 527) is a county highway in the U.S. state of New Jersey. The highway extends 84.86 mi (136.57 km) from Main Street (Route 166 and CR 549) in Toms River Township to Pompton Avenue (Route 23) in Cedar Grove. It passes through more counties (six) than any other county route in New Jersey. CR 527 is also the second longest 500-series county route in New Jersey after Route 519. It was first given the number 527 in 1954.