Although most of its routes run in and around Wilmington and Newark in New Castle County, DART operates bus route networks in the Dover area of Kent County, two year-round bus routes which hub at Georgetown in Sussex County, one route which operates into Elkton, Maryland, with connection to the modified fixed-route and dial-a-ride services of Cecil County, Maryland, and six seasonal routes connecting Rehoboth Beach and other coastal resort towns in Sussex County, and with Ocean City, Maryland.
DART First State operates a total of 9 bus routes within Sussex County. Two of these routes offer year-round fixed-route bus service within Sussex County and connect at Georgetown. During summer months, DART operates 7 additional bus routes which hub at the Rehoboth Beach Park and Ride lot and offer connecting service to coastal communities along the Delaware shoreline and to Ocean City, Maryland. These routes are numbered in the 200-series.
DART First State operates two inter-county bus routes which connect the three separate systems. Route 301 operates weekday service between Downtown Wilmington, Christiana Mall, Middletown, Smyrna, and Dover, connecting the New Castle and Kent County fixed-route systems. Route 303 operates between Dover and Georgetown, connecting the Kent and Sussex County fixed-route systems. During the summer months, DART First State operates Route 305 on weekends, connecting Wilmington and Dover with Rehoboth Beach.
DART First State, through the Delaware Department of Transportation, subsidizes the segment of the R2 Marcus Hook-Newark line of SEPTA Regional Rail within the State of Delaware. SEPTA operates the service under contact to DART First State; signage at the Delaware stations differs from that at other SEPTA Regional Rail stations.
These trains originate in Philadelphia and operate to Wilmington, with an intermediate stop at Claymont. A few rush-hour trains continue on to Newark, with an intermediate stop at Churchman's Crossing station, located near the Delaware Park horse racing track.