Märsta's topography is modest and characteristic of the low-relief landscapes of east-central Sweden.
- **Highest points:** There are small uplands and rocky forested rises in and around the locality, but no major mountain or summit is associated with Märsta itself. - **Lowest points:** Lower-lying areas occur in drainage zones, near wetlands, and toward the broader lowland systems connected to Lake Mälaren. - **Hills and ridges:** The area includes gentle hills, glacial ridges, and bedrock outcrops common in Uppland. - **Plateaus:** No major plateau landform is associated with Märsta. - **Canyons:** None of note. - **Coastal areas:** Märsta is inland, though influenced by the larger hydrological and climatic setting of eastern Sweden. - **Flood plains:** Some low-lying land and drainage areas may be more sensitive to local water management, but Märsta is not especially known for major floodplain geography compared with larger river valleys.
Overall, the town sits in a **low, rolling, glacially shaped landscape** suitable for settlement, agriculture, roads, and rail. The terrain is one reason the area could expand relatively easily during the 20th century.
