Although surrounding counties do not pay for MARTA, many of their residents use MARTA by driving directly to a MARTA station or by using a county or regional bus system that connects to MARTA. A license plate study from 1988 to 1997 showed that 44% of the cars parked in MARTA park-and-ride lots were from outside of Fulton and DeKalb counties. Current fare reciprocity agreements also allow non-paying counties to provide bus service for their residents that provide free connections to MARTA (see Fare reciprocity). According to a 2000 MARTA ridership study, 12% of MARTA riders live outside of MARTA's service area.
