Gulf Coast of Alabama

The Gulf Coast of Alabama has about 60 miles of Gulf of Mexico shoreline, and the tidal shoreline of bays, rivers and bayous in Mobile and Baldwin counties adds roughly 600 miles, about 100 of them around Mobile Bay [1]. The white sand beaches of Orange Beach, Gulf Shores and Dauphin Island are the state’s top tourist destinations, and tourism in south Baldwin County supports more than 50,000 jobs and over $2 billion in revenue each year.

Geology and sand

The shoreline formed over hundreds of thousands of years, and sea level reached its present height within the last 10,000 years. Beach sand is almost entirely quartz that washed out of the ancient Appalachian Mountains and was sorted by waves into remarkably uniform grains. The dominant sand drift runs east to west [1].

Protected areas

Gulf State Park covers 6,150 acres of beaches, dunes, marshes, freshwater ponds and forests in Gulf Shores. Weeks Bay National Estuarine Research Reserve preserves 6,525 acres of the bay’s estuarine ecosystem [1].

Inlets and human impacts

Dredging Mobile Pass for the Mobile Ship Channel has removed more than 20 million cubic yards of sand from the beach system since 1960. More than one-third of Mobile Bay’s shoreline has been stabilized with structures such as bulkheads, and about six miles of intertidal shoreline have been lost since 1900 [1].

Restoration

Gulf Shores completed the state’s first major beach nourishment project in 2001 along 2.5 miles, at a cost of about $6 million, and later projects covered 14 miles through Orange Beach. “Living shoreline” projects use sandy beaches and wetlands instead of bulkheads, authorized by a state general permit [1]. Oil from the 2010 Gulf spill washed ashore between late June and August 2010 [1].

Related reading

See Mobile-Tensaw River Delta and Geography of Alabama.

Shoreline and sand

The Gulf of Mexico shoreline is about 60 miles long, and tidal shoreline along bays, rivers and bayous in Mobile and Baldwin counties adds about 600 more miles, roughly 100 of them around Mobile Bay. The sand is nearly all quartz, sorted by waves into very uniform grains, which is why the beaches are so fine. Over hundreds of thousands of years the shoreline formed, with sea levels reaching their present height within the last 10,000 years.[2]

Towns, parks and nourishment

Gulf Shores, Orange Beach and Dauphin Island are popular white-sand destinations, and Gulf State Park, established in 1939, covers 6,150 acres in Gulf Shores. Gulf Shores completed Alabama’s first major beach nourishment project in 2001, later extended through Orange Beach, and nourishment has reduced hurricane damage to roads and condominiums. Hurricane Katrina in 2005 cut a new inlet through Dauphin Island.[2]

Tourism and environment

Tourism in south Baldwin County supports more than 50,000 jobs and over billion in revenue a year. More than a third of Mobile Bay shoreline has been stabilized, mostly with bulkheads, with about six miles of intertidal shoreline lost since 1900; living shorelines are presented as an alternative. Weeks Bay National Estuarine Research Reserve preserves 6,525 acres. Dredging Mobile Pass has removed more than 20 million cubic yards of sand since 1960, and oil from the 2010 Gulf spill washed ashore on many beaches.[2]

FAQs

How long is the Alabama coast? About 60 miles on the Gulf, plus about 600 miles of tidal shoreline.

What is the sand made of? Nearly all quartz from the ancient Appalachians.

What state park is on the coast? Gulf State Park, established in 1939.

Sources

1. Encyclopedia of Alabama: Alabama’s Coastline
2. Encyclopedia of Alabama: Alabama Coastline

Editorially reviewed by Specialty Digest Editorial TeamLast reviewed November 10, 2026Researched and drafted with AI assistanceReport an issue