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| Name | Major stations | Length (km) | Comments |
|---|---|---|---|
| JR railway lines | |||
| JR | |||
| Seto-Ōhashi Virtual line | 14.5 | ||
| JR Shikoku | |||
| Dosan | Tadotsu - Kotohira - [Tsukuda] | 29.5 | |
| Honshi-Bisan | [Kojima] - Utazu | 14.5 | |
| Kotoku | Takamatsu - [Tokushima] | 49.4 | |
| Yosan | Takamatsu - Sakaide - Utazu - Tadotsu - Kanonji - [Kawanoe] | 68.3 | |
| Non JR railway lines | |||
| Kotoden | |||
| Kotohira | Takamatsu-chikkō - Kawaramachi - Kotoden-Kotohira | 32.9 | |
| Nagao | Takamatsu-chikkō - Kawaramachi - Nagao | 14.6 | |
| Shido | Kawaramachi - Kotoden-Shido | 12.5 | |
