Sakarya's train stations serve an important role in the regional rail network, facilitating connections between various cities. Adapazarı Station is the main station, providing services for both intercity and suburban travel. It connects Sakarya with major cities such as Istanbul and Ankara, accommodating numerous passengers daily. The trains are operated by TCDD, the Turkish State Railways, ensuring reliable schedules. Another station, Sapanca Station, serves the local area and is popular for travelers heading to nearby tourist spots such as the Sapanca Lake and Maşukiye. Commuter lines available from Sakarya help connect residents with larger urban centers.