| Station | Location | Railroad |
|---|---|---|
| Acton | Acton, Massachusetts | Boston and Maine Railroad The Concord & Montreal Railroad Concord Railroad Corporation The New York, New Haven and Hartford Railroad Company Old Colony Railroad Company |
| North Acton | Acton, Massachusetts | Boston and Maine Railroad The Concord & Montreal Railroad Concord Railroad Corporation |
| North Acton Junction | Acton, Massachusetts | Old Colony Railroad Company |
| South Acton | Acton, Massachusetts | Boston and Maine Corporation Boston and Maine Railroad Fitchburg Railroad Company Massachusetts Bay Transportation Authority |
| West Acton | Acton, Massachusetts | Boston and Maine Corporation Boston and Maine Railroad Fitchburg Railroad Company |
| Westford (North Acton) | Acton, Massachusetts | The New York, New Haven and Hartford Railroad Company |