As of 2019[update], the network consisted of the following lines: Reconstruction of the railway line on the east side of Lake Zug led to the suspension of the S2 between Zug Oberwil and Arth-Goldau beginning on June 9, 2019.

[3] However, when the S1 was opened in 2004, there were not enough of these trains available to provide a full service, so they were supplemented by a Neuer Pendelzug (New Commuter Train) (NPZ), consisting of an SBB-CFF-FFS RBDe 560 hauling a B (second class car) owned by Thurbo as a Mittelwagen (intermediate car) and an NPZ Bt as a Steuerwagen (control car/cab car/driving trailer).

Additionally, Basel Regional S-Bahn trains were used to operate some services in 2008.

Since December 2008, all Zug Stadtbahn services have been operated by a fleet of twelve RABe 523s.

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