184 Islands to Explore in United States

Developed with facilities for a lighthouse, a military fortification, a military prison, and a federal prison that seized operations in the 1960s. Today the small island is open for tours.

Amaknak Island is a picturesque and culturally rich island situated in the Aleutian Islands of Alaska. Located near the town of Unalaska, it offers a blend of natural beauty and human history. Amaknak Island is a captivating part of the Aleutian Islands, known for its scenic beauty, cultural heritage, and connection to the fishing industry. It is a place where natural landscapes and human history converge, offering a glimpse into the history and ecology of this remote region of Alaska.

A small volcanic island composed of a series of narrow islets 6 mi long, oriented generally east–west and 5 mi (8 km) east of Santa Cruz Island. Anacapa is the smallest of the northern islands of the Channel Islands archipelago, and is within the Channel Islands National Park.

Anaho Island is a unique and beautiful island located in Washoe County, Nevada. It is a part of the Pyramid Lake Indian Reservation and is surrounded by the stunning Pyramid Lake. The island is about 2.5 miles long and 1 mile wide, with a total area of approximately 2,400 acres.

Angel Island is the largest natural island in the San Francisco Bay, offers some of the best views of the surrounding Bay Area. It has been used by humans for a variety of purposes, including seasonal hunting and gathering by indigenous peoples, water and timber supply for European ships, ranching by Mexicans, United States military installations, a United States Public Health Service Quarantine Station, and a U.S. Bureau of Immigration inspection and detention facility.

Avery Island is a captivating natural and cultural destination nestled in southern Louisiana, renowned for its unique geological features, rich history, and iconic Tabasco hot sauce production. Situated atop a salt dome, Avery Island encompasses approximately 2,200 acres of lush subtropical landscapes, including verdant forests, tranquil bayous, and vibrant botanical gardens.

Bair Island is a swampland spread over 3,000 acres in Redwood City. It is part of the larger Don Edwards San Francisco Bay National Wildlife Refuge. It is surrounded by the Steinberger slough to the northwest and Redwood Creek to the southeast. It is an important ecological wetland, which provides critical habitat for a variety of species, including the endangered California clapper rail and the Salt marsh harvest mouse, and is an important stop for birds on the Pacific Flyway.

Balboa Island was originally a sandbar that developer William S. Collins turned into an island between 1905 and 1913. It is accessible to the public via bridge, ferry and several public docks. It is home to local small businesses including restaurants, bakeries, fishing & tackle, and local crafts. The island also has a fire station and a post office. The community is surrounded by a paved concrete boardwalk open to pedestrian traffic, designated as a public walking trail by the city.

Ballast Island is a small, privately owned island located in Lake Erie, near Ottawa County, Ohio. This island is known for its unique history, picturesque landscapes, and limited public access. Ballast Island has historical significance, dating back to the 19th century. It was used as a "ballast island," a place where ships would discharge ballast stones (typically used to stabilize ships) in exchange for cargo. Over time, these stones created the island's landmass.

Bangert Island, is a unique geographical feature with a fascinating history. The island was once a peninsula, but after the construction of the Missouri River's Chain of Rocks Canal in the early 20th century, it became a true island.The island spans over 523 acres and is an ecological haven for local flora and fauna. It is home to a variety of rare and endangered species of plants and animals and is an important breeding ground for migratory birds such as pelicans and egrets.

Bear Island is a distinctive and historically significant natural feature located in Colleton County, South Carolina. Nestled within the lush and ecologically diverse Lowcountry region of the state, Bear Island is renowned for its pristine beauty, rich wildlife habitat, and its role in the cultural heritage of the area.This island, situated along the Edisto River, offers a unique blend of natural wonders and historical significance.

The Beardslee Islands, located near Hoonah in the southeastern region of Alaska, are a stunning and remote group of islands known for their pristine wilderness, rich biodiversity, and their role as a habitat for a variety of marine and terrestrial species. Their rich biodiversity, pristine landscapes, and cultural significance make them a remarkable place for nature enthusiasts, outdoor adventurers, and anyone looking to immerse themselves in the beauty of this remote archipelago.

Blakeley Island, located near Mobile in Baldwin County, Alabama, is a historically and ecologically significant area with a rich history and natural beauty. Blakeley Island has a deep historical significance, particularly relating to the Civil War era. During the Civil War, it was the site of the Battle of Fort Blakely, one of the last battles of the war. The battlefield and remnants of the fort are preserved on the island, providing insights into this pivotal moment in American history.

Blythe Island is known for its spectacular beaches and impressive marshlands, with maritime forests that spread across it and attract a plethora of different species of birds. In addition, visitors can explore an array of nature trails and boardwalks, which are great for admiring the scenery and taking in the beauty of local wildlife. Blythe Island also offers plenty of recreational activities like fishing, golfing, kayaking and jet-skiing at its breathtaking state parks.

Blythe Island Regional Park is an outdoor enthusiast's dream destination. From a challenging ropes course to a picturesque nature trail with local wildlife, there is something for everyone at this sprawling park. Visitors also have the opportunity to enjoy water activities at the boat ramp or soak up some sun on one of the beaches. Fishing and kayaking can also be done here, so come prepared with all the necessary gear if you plan to take full advantage of this serene landscape.

Bobrof Island is a remote and rugged island located in the Aleutian Islands, an archipelago that extends across the Bering Sea and the North Pacific Ocean. Situated in the Aleutians West Census Area of Alaska, Bobrof Island is known for its unique geological features, natural beauty, and its role as a habitat for diverse wildlife.

Boca Chita Key is the island north of the upper Florida Keys in Biscayne National Park, Miami-Dade County, There is a beautiful lighthouse located in this island and a campground with picnic tables and saltwater toilets. Freshwater and electricity are not available in this island.

Bogoslof Island is a small but remarkable volcanic island located in the Aleutian Island chain of Alaska. It is part of the larger Aleutian archipelago, which stretches for about 1,200 miles across the North Pacific Ocean, connecting North America to Asia. This remote and isolated island is situated within the Aleutian Islands Wildlife Refuge and is characterized by its stunning natural beauty, unique geology, and a rich history of volcanic activity.

Buckeye Island is a privately owned island located in Lake Erie. This island is known for its natural beauty, limited public access, and its historical significance as a former site of a private club.It has historical significance as the former site of the Buckeye Island Club, a private hunting and fishing club that was established in the late 19th century. The club attracted prominent members, including industrialists and politicians, who enjoyed recreational activities on the island.

A three-mile nature trail, a marina, picnic pavilions, bathhouses, a park concession stand, and a beach is what you will encounter in Caladesi Island State Park. The Caladesi Island beach was listed as the best beach in United States by Dr. Beach in 2008.