United States

Which State has the Longest Coastline in USA?



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Map highlighting the state with the longest coastline in red – Alaska

The United States is the third largest country in the world comprising an area of 3,796,742 square miles. The country has an equally huge coastline which measures a whopping 95,439 miles, as per the National Oceanic and Atmospheric Administration (NOAA). Let’s explore Which state has the longest coastline?“, not only this we’ll also take a look at how long the coastlines are for all the states in the U.S.

State with the Most Coastline

Of all the states, Alaska has the longest coastline. According to the NOAA, the coastline of the state is 33,904 miles long. Incidentally, Alaska is also the largest state in the country.

Top 5 US States with the Longest Coastlines

The top 5 states with the longest coastlines are:

  • Alaska – 33,904 mi (54,563 km)

Alaska has the longest coastline in the United States, measuring approximately 33,904 miles. It stretches along the Arctic Ocean, Pacific Ocean, and the Gulf of Alaska. Its coastal areas feature stunning fjords, glaciers, and diverse marine life. Remarkably, Alaska’s coastline is longer than the coastlines of all other U.S. states combined.

Florida’s coastline is like a sunny paradise with warm waters from the Gulf of Mexico and the Atlantic Ocean. It measures approximately 8,436 miles. The Florida Reef, the only living coral barrier reef in the continental United States, is part of the expansive coastline.


Louisiana’s coastline is uniquely shaped by the Mississippi River Delta, stretching for 7,721 miles. It is a hub for economic activities like oil and gas production. The coastline is crucial for biodiversity, providing habitats for numerous species of fish, birds, and other wildlife.

  • Texas – 3,359 mi (5,406 km)

Texas Gulf Coast is a blend of sandy beaches, estuaries, and bays along the Gulf of Mexico. It stretches for approximately 3,359 miles. It is a significant economic driver, supporting industries such as energy, shipping, and tourism. The Padre Island National Seashore in Texas has the longest stretch of undeveloped barrier island in the world.

California’s coastline is renowned for its diversity, featuring rocky cliffs, sandy beaches, and iconic landscapes along the Pacific Ocean. It stretches for approximately 3,427 miles. It is a hotspot for outdoor activities and tourism. The Big Sur coastline is home to McWay Falls, an 80-foot waterfall that cascades directly onto the beach.

Coastline of all States

Of the 50 states of the United States, 30 have a coastline. Those 30 states are:

  1. Alaska – 33,904 mi (54,563 km)
  2. Florida – 8,436 mi (13,576 km)
  3. Louisiana – 7,721 mi (12,426 km)
  4. Maine – 3,478 mi (5,597 km)
  5. California – 3,427 mi (5,515 km)
  6. North Carolina – 3,375 mi (5,432 km)
  7. Texas – 3,359 mi (5,406 km)
  8. Virginia – 3,315 mi (5,335 km)
  9. Michigan – 3,224 mi (5,189 km)
  10. Maryland – 3,190 mi (5,130 km)
  11. Washington – 3,026 mi (4,870 km)
  12. South Carolina – 2,876 mi (4,628 km)
  13. New York – 2,625 mi (4,225 km)
  14. Georgia – 2,344 mi (3,772 km)
  15. New Jersey – 1,792 mi (2,884 km)
  16. Massachusetts – 1,519 mi (2,445 km)
  17. Oregon – 1,410 mi (2,270 km)
  18. Hawaii – 1,052 mi (1,693 km)
  19. Wisconsin – 820 mi (1,320 km)
  20. Connecticut – 618 mi (995 km)
  21. Alabama – 607 mi (977 km)
  22. Rhode Island – 384 mi (618 km)
  23. Delaware – 381 mi (613 km)
  24. Mississippi – 359 mi (578 km)
  25. Ohio – 312 mi (502 km)
  26. Minnesota – 189 mi (304 km)
  27. Pennsylvania – 140 mi (230 km)
  28. New Hampshire – 131 mi (211 km)
  29. Illinois – 63 mi (101 km)
  30. Indiana – 45 mi (72 km)

States Without Coastline

The states which do not have any coastline in USA are:

  1. Arizona
  2. Arkansas
  3. Colorado
  4. Idaho
  5. Iowa
  6. Kansas
  7. Kentucky
  8. Missouri
  9. Montana
  10. Nebraska
  11. Nevada
  12. New Mexico
  13. North Dakota
  14. Oklahoma
  15. South Dakota
  16. Tennessee
  17. Utah
  18. Vermont
  19. West Virginia
  20. Wyoming

If you are interested in exploring more about these states, check out our: US State Map. You can see all the 50 states and click on any state to see its own map.

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