|State||General coastline||Tidal shoreline|
Notes: In statute miles. Each statute mile equals one mile. The term coastline is used to describe the general outline of the seacoast. For the table below, United States coastline measurements were made from small-scale maps, and the coastline was generalized. The coastlines of large sounds and bays were included. Measurements were made in 1948. Shoreline is the term used to describe a more detailed measure of the seacoast. The tidal shoreline figures in the table below were obtained in 1939-1940 from the largest-scale charts and maps then available. Shoreline of the outer coast, offshore islands, sounds, and bays were included, as well as the tidal portion of rivers and creeks.
Source: U.S. Census Bureau, Statistical Abstract of the United States: 2010 (129th Edition) Washington, DC, 2009; Table 351.