Long Island Sound Map
Long Island Sound is a sound bordered by the United States. This map shows Long Island Sound highlighted in blue on shaded relief, with the surrounding coasts, rivers, borders and major cities.
How to read this map
Countries with a coast on Long Island Sound: the United States.
The blue outline marks Long Island Sound as mapped by Natural Earth. Towns and cities on the map include New York City, Bridgeport, Hartford, New Haven, Stamford, Springfield, Newark and Waterbury. Labeled states and countries: Connecticut and Rhode Island.
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, and fine dashed lines show state or province borders.
The relief uses Terrain Tiles (SRTM, GMTED2010 and ETOPO1 elevation data). Rivers, lakes, borders and the outline of Long Island Sound 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 Long Island Sound 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.
Long Island Sound facts
| Fact | Value |
|---|---|
| Mouth | the Atlantic Ocean |
| Coastal countries | the United States |
| Tributaries | Connecticut River, Housatonic River, Mystic River, Thames River, Mamaroneck River, Nissequogue River, Norwalk River and Niantic River |
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: United States. Compare with the map of the five oceans.
Frequently asked questions
Which countries border Long Island Sound?
the United States.
Can I download a blank map of Long Island Sound?
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: Long Island Sound Map · Atlas of Maps (atlasofmaps.com), license CC BY 4.0.
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