Monroe County is the southernmost county of the state of Florida. As of the 2020 census, the population was 82,874. Its county seat is Key West. Monroe County includes the islands of the Florida Keys and comprises the Key West-Key Largo Micropolitan Statistical Area. Over 99.9% of the county's population lives on the Florida Keys. The mainland, which is part of the Everglades, comprises 87% of the county's land area and is virtually uninhabited with only 17 people recorded in the 2020 census.
Key West is an island in the Straits of Florida, within the U.S. state of Florida. Together with all or parts of the separate islands of Dredgers Key, Fleming Key, Sunset Key, and the northern part of Stock Island, it constitutes the City of Key West.
Martello towers, sometimes known simply as Martellos, are small defensive forts that were built across the British Empire during the 19th century, from the time of the French Revolutionary Wars onwards. Most were coastal forts.
State Road A1A (SR A1A) is a major north–south Florida State Road consisting of seven separate sections running a total of 338.752 miles (545.168 km) along the Atlantic Ocean, from Key West at the southern tip of Florida, to Fernandina Beach, just south of Georgia on Amelia Island. It is the main road through most oceanfront towns. Part of SR A1A is designated the A1A Scenic and Historic Coastal Byway, a National Scenic Byway. A portion of SR A1A that passes through Volusia County is designated the Ormond Scenic Loop and Trail, a Florida Scenic Highway. It is also called the Indian River Lagoon Scenic Highway from State Road 510 at Wabasso Beach to U.S. Route 1 in Cocoa. In 2024, the entirety of A1A from Key West to the Georgia state line was designated the Jimmy Buffett Memorial Highway. SR A1A is famous worldwide as a center of beach culture in the United States, a scenic coastal route through most Atlantic coastal cities and beach towns, including the unique tropical coral islands of the Florida Keys. SR A1A also serves as a major thoroughfare through Miami Beach and other south Florida coastal cities.
The Fort Zachary Taylor Historic State Park, also known simply as Fort Taylor, is a Florida State Park and National Historic Landmark centered on a Civil War-era fort located near the southern tip of Key West, Florida.
The Key West Lighthouse is located in Key West, Florida. The first Key West lighthouse was a 65-foot (20 m) tower completed in 1825. It had 15 lamps in 15-inch (380 mm) reflectors.
The Harry S. Truman Little White House in Key West, Florida was the winter White House for President Harry S. Truman for 175 days during 11 visits. The house is located in the Truman Annex neighborhood of Old Town, Key West.
The Key West Historic District is a U.S. historic district located in Key West, Florida. It encompasses approximately 4,000 acres (16 km2), bounded by White, Angela, Windsor, Passover, Thomas and Whitehead Streets, and the Gulf of Mexico. It contains 187 historic buildings and one structure.
The Fort East Martello Museum & Gardens, is a historic site located at 3501 South Roosevelt Boulevard, Key West, Florida, United States. On June 19, 1972, it was added to the U.S. National Register of Historic Places. It is the best-preserved example of the Martello style of military architecture in the country.
The Dr. Joseph Y. Porter House is a historic home in Key West, Florida. It is located at 429 Caroline Street. On June 4, 1973, it was added to the U.S. National Register of Historic Places.
The Eduardo H. Gato House is a historic home in Key West, Florida, United States. On April 11, 1973, it was added to the U.S. National Register of Historic Places Eduardo H. Gato and family also lived at 1327 Duval Street, also known as the southernmost Point Guest House.
The Custom House and Old Post Office is a historic site located at 281 Front Street, Key West, Florida, United States. On September 20, 1973, it was added to the U.S. National Register of Historic Places.
The Sugarloaf Key Bat Tower, also known as the Perky Bat Tower, is a historic site in Monroe County, Florida, United States. It is located a mile northwest of U.S. Route 1 on Lower Sugarloaf Key at mile marker 17. On May 13, 1982, it was added to the National Register of Historic Places. The tower was blown down during Hurricane Irma in 2017.
The Thompson Fish House, Turtle Cannery and Kraals is a historic site located at 200 Margaret Street, Key West, Florida, United States. On June 23, 1994, it was added to the U.S. National Register of Historic Places.
The Armory is a historic site in Key West, Florida, United States. It is located at 600 White Street. In 1971, it was added to the United States National Register of Historic Places.
The U.S. Coast Guard Headquarters, Key West Station is a historic site in Key West, Florida. It is located at the northwest corner of the intersection of Front and Whitehead Streets. In 1973, it was added to the U.S. National Register of Historic Places.
The Key West Cemetery is a 19-acre (77,000 m2) cemetery at the foot of Solares Hill on the island of Key West, Florida, United States.
This is a list of the National Register of Historic Places listings in Monroe County, Florida.
Fort Jefferson is a former U.S. military coastal fortress in the Dry Tortugas National Park of Florida. It is the largest brick masonry structure in the Americas, covering 16 acres (6.5 ha) and made with over 16 million bricks. Among United States forts, only Fort Monroe in Virginia and Fort Adams in Rhode Island are larger. The fort is located on Garden Key in the lower Florida Keys within the Dry Tortugas, 68 miles (109 km) west of the island of Key West. The Dry Tortugas are part of Monroe County in Florida.
Mountain Lake is a private community and U.S. historic district north of the City of Lake Wales, Florida, United States, off the FL 17 Scenic Highway.
