Sea of Marmara Map
The Sea of Marmara is a sea of about 11,400 km² (4,380 sq mi), bordered by Turkey. This map shows the Sea of Marmara highlighted in blue on shaded relief, with the surrounding coasts, rivers, borders and major cities.
How to read this map
The Sea of Marmara covers about 11,400 km² (4,380 sq mi) and reaches a maximum depth of about 1,370 m (4,495 ft). Countries with a coast on the Sea of Marmara: Turkey.
The blue outline marks the Sea of Marmara as mapped by Natural Earth. Towns and cities on the map include Istanbul, Bursa, İzmit, Adapazarı, Balıkesir, Edirne, Tekirdağ and Lüleburgaz.
Greens show lower elevations; tan and brown show higher land, with pale tones toward the highest terrain. Shadows emphasize the slopes, and vertical relief is exaggerated so landforms are easier to read. Dashed lines show country borders.
The relief uses Terrain Tiles (SRTM, GMTED2010 and ETOPO1 elevation data). Rivers, lakes, borders and the outline of the Sea of Marmara come from Natural Earth, and the figures on this page from Wikidata. Natural Earth draws features at a small scale, so the outline is a guide to where the Sea of Marmara is, not a surveyed boundary.
Blank physical map
The blank version keeps the mapped features and removes the place labels. Download it for a geography worksheet or practice identifying the features.
Sea of Marmara facts
| Fact | Value |
|---|---|
| Area | 11,400 km² (4,380 sq mi) |
| Maximum depth | 1,370 m (4,495 ft) |
| Inflows | Biga River, Gönen River and Mustafakemalpaşa River |
| Coastal countries | Turkey |
Data sources and license
- Natural Earth (public-domain geography): Public domain.
- Terrain Tiles / Mapzen (SRTM, GMTED2010, ETOPO1): Open elevation data; source attribution retained.
- Wikidata (lengths, areas, countries and other facts): CC0 1.0.
Map design and rendered images: Atlas of Maps, CC BY 4.0. Source databases retain their own licenses; the map license does not replace them.
Maps of the coastal countries: Turkey. Compare with the map of the five oceans.
Frequently asked questions
How big is the Sea of Marmara?
The Sea of Marmara covers about 11,400 km² (4,380 sq mi); its maximum depth is about 1,370 m (4,495 ft).
Which countries border the Sea of Marmara?
Turkey.
Can I download a blank map of the Sea of Marmara?
Yes. The blank version keeps the relief, rivers and borders and the highlighted sea but removes the place names. Both versions are free to download as PNG and as an A4 PDF.
Use this map
You can download, print and share this map for free, in class, in school projects, in presentations and on websites, as long as you credit the source: Sea of Marmara Map · Atlas of Maps (atlasofmaps.com), license CC BY 4.0.
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