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United States Map showing the states with the greatest coastal waters

 Waterways In America 

According to the US Census (which compiles geographical data from multiple government agencies), the general coastline of the entire US is 12,383 miles, while the shoreline is 88,633 miles. But the official shoreline estimate from the National Oceanic and Atmospheric Administration is 95,471 miles.

The states with the Longest Coastline 

  1. Alaska              6,640 Miles
  2. Florida             1,350 Miles
  3. California           840 Miles
  4. Hawaii               750 Miles
  5. Louisiana           397 Miles
  6. Texas                 367 Miles
  7. North Carolina   301 Miles
  8. Oregon              296 Miles
  9. Maine                 228 Miles
  10. Massachusetts   192 Miles   

United States map showing the major internal waterwaysInternal Waterways (Rivers)

In addition to the coast line, there are internal waterways and lakes that support commerce and recreational boating. 

 

 

Lakes 

  1. Lake Superior                              31,700 sMap showing the largest lakes in the United Statesq mi
  2. Lake Huron                                 23,000 sq mi
  3. Lake Michigan                             22,300 sq mi
  4. Lake Erie                                      9,910 sq mi
  5. Lake Ontario           New York      7,340 sq mi
  6. Great Salt Lake       Utah             2,117 sq mi
  7. Lake of the Woods   Minnesota    1,679 sq mi
  8. Iliamna Lake            Alaska         1,014 sq mi
  9. Lake Oahe               N&S Dakota   685 sq mi
  10. Lake Okeechobee    Florida           662 sq mi


The Auxiliary Role in Protecting these Waterways

Where there are significant bodies of water you will likely find a USCG Auxiliary Flotilla.  The role of the Auxiliary is to support / augment the Coast Guard in overseeing these waterways and ensuring recreational boating.  Each Flotilla is responsible for the Area of Responsibility close to where they live.  Their mission is to practice the Auxiliary's best practices to supporting the businesses and people of that AOR. The training ensures auxilarists through the country utilize the same language and handle the duties in the same manner.  

The Auxiliary functions independently as well as being in support of the Coast Guard.