Saint-Martin-Boulogne is a farming andlight industrial suburb east of Boulogne itself, at the junction of the N42 and D96 roads. Junctions 30 and 31 of theA16 autoroute lie within the commune's borders.
TheChemin de fer de Boulogne à Bonningues (CF de BB) opened a station at Saint-Martin-Boulogne on 22 April 1900.[5] Passenger services were withdrawn on 31 December 1935.[6] They were reinstated in November 1942.[7] The CF de BB closed in 1948.[8]