| Station | Location | Railroad |
|---|---|---|
| To the Top | ||
| C | ||
| Concord [Fitchburg] | Concord | Boston and Maine Railroad |
| Concord [Fitchburg] | Concord | Massachusetts Bay Transportation Authority |
| Concord [Fitchburg] | Concord | Boston and Maine Corporation |
| Concord [Fitchburg] | Concord | Fitchburg Railroad Company |
| Concord | Concord | Boston and Maine Railroad |
| Concord Junction | Concord | Old Colony Railroad Company |
| Concord Junction | Concord | The Concord & Montreal Railroad |
| Concord Junction | Concord | Concord Railroad Corporation |
| Concord Junction | Concord | Boston and Maine Railroad |
| Concord Junction | Concord | The New York, New Haven and Hartford Railroad Company |
| Concord Junction | Concord | Fitchburg Railroad Company |
| To the Top | ||
| M | ||
| Middlesex Junction | Concord | The Concord & Montreal Railroad |
| Middlesex Junction | Concord | Old Colony Railroad Company |
| Middlesex Junction | Concord | Concord Railroad Corporation |
| To the Top | ||
| R | ||
| Reformatory | Concord | Boston and Maine Railroad |
| Reformatory Station | Concord | Boston and Maine Railroad |
| To the Top | ||
| W | ||
| West Concord | Concord | Boston and Maine Railroad |
| West Concord | Concord | Boston and Maine Corporation |
| West Concord | Concord | The New York, New Haven and Hartford Railroad Company |
| West Concord | Concord | Massachusetts Bay Transportation Authority |