Fawkham is 8 miles (13 km) from Gravesend, 8 miles (13 km) from Dartford and 12 miles (20 km) from Sevenoaks. It is on the northern edge of Sevenoaks District, near its border with Dartford District. Before 1974 it was in Dartford Rural District along with its neighbouring parishes.
The 12th-century parish church is dedicated to St Mary; the ecclesiastical parish is part of the united benefice of Fawkham and Hartley. In medieval times the parish was part of Axstane Hundred.