Gapyeong-gun sits on the Gyeongchun rail corridor in Gyeonggi Province, linking the Seoul rail area with Chuncheon in Gangwon Province. The county is not a high-speed rail hub, but it has several Korail passenger stops that handle intercity-style and regional services. Gapyeong Station is the main train station for longer-distance arrivals, while Cheongpyeong Station and other local stops serve nearby parts of the county.
Trains from Gapyeong-gun are operated by Korail, including ITX-Cheongchun services and regional Gyeongchun Line trains. ITX-Cheongchun uses reserved seating on selected services between Seoul-side stations and Chuncheon, while regional trains provide local stopping service along the same corridor. Gapyeong Station is the primary station for passengers booking train tickets for the county.
Rail routes from Gapyeong-gun run west toward Seoul via Cheongnyangni and Yongsan, and east toward Namchuncheon and Chuncheon. Nearby stations also connect Cheongpyeong, Sangcheon, and Daeseong-ri on the Gyeongchun Line. Book trains from and to Gapyeong-gun online at Rail Monsters.