Norcross is an Atlanta suburb northeast of downtown, closest to the Doraville MARTA station on the gold rail line. Near the intersection of I-85 and I-285, the area contains the northern stretch of Buford Highway and neighbors Dunwoody.
Due to its location in Gwinnett County, Norcross is not part of the MARTA system. However, there are regional buses operated by GCT and GRTA Xpress that connect with the Doraville station (see transit map). In particular, GCT bus 35 goes to Norcross from the MARTA station Monday-Friday. It is free to transfer from MARTA to the bus.
If you need transit options on the weekend or don’t want to take a bus, you’ll need to arrange for a car service like an area taxi (many wait at the Doraville station), Uber or Lyft. Use promo code MARTAGuide to get $20 off your first ride with Uber. Sign up here. Note that commute time in a car from Doraville to Norcross is about 12 minutes without traffic.