U.S. Route 1 in Florida
section of U.S. Numbered Highway in Florida, United States
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).
From its national southern terminus in Key West, US 1 carries the Overseas Highway, which is the Keys's main highway, north to the mainland, entering South Florida. From South Florida to Jacksonville, US 1 runs close to the coastline of the Atlantic Ocean and the Intracoastal Waterway, generally east of Interstate 95 (I-95) and west of State Road A1A (SR A1A), running roughly parallel with both roads. North of Jacksonville, US 1 curves inland toward the St. Mary's River as it enters Georgia.
As is the case with all Florida roads with national designations, the entirety of US 1 has a hidden FDOT designation:
SR 5 from Whitehead Street/Fleming Street in Key West to Federal Highway (SR 5 north) in Lantana, Belvedere Road in West Palm Beach to the I-95/Kings Avenue (SR 5 north) interchange in Jacksonville, and the Main Street (SR 5 south) on/offramps south of the Main Street Bridge to US 1 Alternate (US 1 Alt.)/US 17 in Jacksonville.
The public source identifies “U.S. Route 1 in Florida” as section of U.S. Numbered Highway in Florida, United States. This brief keeps that definition visible, then builds a research path around Route, Florida and section.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 14, 2026. The linked authority identifier is Q2433083. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1926.
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This entry incorporates text from “U.S. Route 1 in Florida” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.