Monroe County is the southernmost county of the state of Florida. It is also the southernmost county in the United States. 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.
Islandia is an unincorporated community and former city in Miami-Dade County, Florida, United States. It is located in the upper Florida Keys on the islands of Elliott Key and other nearby keys, such as Totten Key. It was the only municipality in the Florida Keys not located in neighboring Monroe County. The population was 18 at the 2010 Census. Most residents of the city were National Park Service employees.
Islamorada is an incorporated village in Monroe County, Florida, United States. It is located directly between Miami and Key West on five islands—Tea Table Key, Lower Matecumbe Key, Upper Matecumbe Key, Windley Key and Plantation Key—in the Florida Keys. As of the 2020 census, the village had a population of 7,107, up from 6,119 in 2010.
Key Largo is an unincorporated area and census-designated place in Monroe County, Florida, United States, located on the island of Key Largo in the upper Florida Keys. The population was 12,447 at the 2020 census, up from 10,433 in 2010. The name comes from the Spanish Cayo Largo, or "long key". It is both the first island and town of the Florida Keys to be reached from the Overseas Highway to Key West. It was also the location of one of the stations of the Overseas Railroad.
North Key Largo is an unincorporated area and census-designated place (CDP) in Monroe County, Florida, United States. The population was 1,431 at the 2020 census, up from 1,244 in 2010. It includes two private clubs, the Ocean Reef Club and the Key Largo Anglers Club, and is reached from the mainland via the Card Sound Bridge.
Tavernier is a census-designated place (CDP) and unincorporated community in Monroe County, Florida, United States on Key Largo, the largest island in the upper Florida Keys. Tavernier's population was 2,530 at the 2020 census, up from 2,136 in 2010.
Key Largo is an island in the upper Florida Keys archipelago and is the largest section of the keys, at 33 miles (53 km) long. It is one of the northernmost of the Florida Keys in Monroe County, and the northernmost of the keys connected by U.S. Highway 1. Three census-designated places (CDPs) are on the island of Key Largo: North Key Largo, Key Largo and Tavernier. As of 2010, these three CDPs have a combined population of 13,850. None of Key Largo is an incorporated municipality; it is governed, at the local level, by Monroe County.
Biscayne Bay is a lagoon with characteristics of an estuary located on the Atlantic coast of South Florida. The northern end of the lagoon is surrounded by the densely developed heart of the Miami metropolitan area while the southern end is largely undeveloped with a large portion of the lagoon included in Biscayne National Park.
Florida Bay is the bay located between the southern end of the Florida mainland and the Florida Keys in the United States. It is a large, shallow estuary that while connected to the Gulf of Mexico, has limited exchange of water due to various shallow mudbanks covered with seagrass. The banks separate the bay into basins, each with its own unique physical characteristics.
The Overseas Highway is a 113-mile (181.9 km) highway carrying U.S. Route 1 (US 1) through the Florida Keys to Key West. Large parts of it were built on the former right-of-way of the Overseas Railroad, the Key West Extension of the Florida East Coast Railway. Completed in 1912, the Overseas Railroad was heavily damaged and partially destroyed in the 1935 Labor Day hurricane. The Florida East Coast Railway was financially unable to rebuild the destroyed sections, so the roadbed and remaining bridges were sold to the state of Florida for $640,000.
Card Sound Bridge is a high-rise toll causeway connecting southern Miami-Dade County and northern Monroe County. It is one of only two ways that motorists can leave or enter the Florida Keys. The toll for two-axle automobiles is USD $1.50 if paid via SunPass. The prior toll plaza was demolished during hurricane Matthew and has been replaced with a toll-by-plate plaza. The toll fee will be charged by plate automatically and sent via the mail to the address on the vehicle registration. The cashless all-electronic tolling system replaced the previous staffed toll booth on October 20, 2018. The toll fee is waived upon evacuating the Keys for hurricanes or in instances in which US 1 is impassable.
John Pennekamp Coral Reef State Park is a Florida State Park located on Key Largo in Florida. It includes approximately 70 nautical square miles (240 km2) of adjacent Atlantic Ocean waters. The park is approximately 25 miles in length and extends 3 miles into the Atlantic Ocean. It was the first underwater park in the United States. The park was added to the National Register of Historic Places on April 14, 1972. The primary attractions of the park are the coral reefs and their associated marine life.
Plantation Key is an island in Monroe County, Florida, United States. It is located in the upper Florida Keys on U.S. 1, between Key Largo and Windley Key.
U.S. Highway 1 (US 1) in Florida runs 545 miles (877 km) along the state's east coast from Key West to its crossing of the St. Marys River into Georgia north of Boulogne and south of Folkston. US 1 was designated through Florida when the U.S. Numbered Highway System was established in 1926. With the exception of Monroe County, the highway runs through the easternmost tier of counties in the state, connecting numerous towns and cities along its route, including nine county seats. The road is maintained by the Florida Department of Transportation (FDOT).
Key Largo School, located on mile marker 105, is a public K-8 school in Key Largo, Florida, within the Monroe County School District.
Rock Harbor is an unincorporated community in Monroe County, Florida, United States, located in the upper Florida Keys on Key Largo on US 1 northeast of Thompson and southwest of the census-designated place of Key Largo.
Garden Cove is an unincorporated community in Monroe County, Florida, United States, located in the upper Florida Keys on Key Largo immediately southwest and bordering the Census-designated place (CDP) of North Key Largo.
Florida's 26th congressional district is an electoral district for the U.S. Congress, which was first created in South Florida in 2013 as a result of Florida's population gain in the 2010 census. In the 2020 redistricting cycle, it was drawn as a successor to the previous 25th district and includes most of inland Collier County as well as the northwestern suburbs of Miami, including Doral, Hialeah, Miami Lakes, and some neighborhoods in Miami itself, such as Allapattah and Wynwood. The previous iteration of the 26th district, which included Monroe County and the southwestern suburbs of Miami, was instead renamed as the newly created 28th district.
The Jewfish Creek Bridge is a beam bridge in the Florida Keys. Spanning both Jewfish Creek and Lake Surprise, it carries the Overseas Highway between the Florida Keys and the Florida mainland. The bridge is 65 feet (20 m) tall and opened in 2008, replacing a small drawbridge.
United States 
Florida 
