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.

Other than SR A1A Alternate (now SR 811, CR 707, SR 732, and an extension of SR 842), only two other Florida state roads have begun with a letter: SR A19A (now a loop of SR 693–SR 699–SR 682 near St. Petersburg), and SR G1A (now SR 300).

The road was designated as State Road 1 in the 1945 renumbering, mostly replacing the former State Road 140 designation. The number reflected its location in the new grid as the easternmost major north–south road. About a year and a half later, in November 1946, the State Road Board resolved to renumber the route due to confusion with the parallel U.S. Highway 1. The new designation, A1A, was chosen to keep the number 1 in its place in the grid.

The East Coast Greenway, a system of trails that connects Maine to Florida, travels along sections of SR A1A.

SR A1A is heavily associated with Florida beach culture and is known for its lush tropical and subtropical scenery and ocean vistas. In many places, the highway runs directly along the waterfront of the Atlantic Ocean, but in other places, it runs one to five blocks inland from the beachfront. For most of its length, SR A1A runs along Florida's East Coast Barrier Islands, separated from the mainland of the state by the Intracoastal Waterway. Because of the proximity of the highway to the ocean and its susceptibility to storm surges, sections of SR A1A are often closed or damaged by hurricanes and tropical storms.

SR A1A also has been a backbone of Florida's spring break serving as "the strip" in both Fort Lauderdale – a popular spring break destination during the 1960s, 1970s and 1980s – and Daytona Beach, which became a popular destination for college spring breaks during the 1970s. Today, SR A1A serves as more a main coastal highway that connects beach towns for more than 375 miles (600 km) along Florida's east coast.

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Though SR A1A runs from Key West to north of Jacksonville, the designation is not one continuous route. In some areas such as the Florida Keys, there is no oceanfront highway (other than the Overseas Highway, US 1), other parts of the coast are served by county roads (sometimes designated County Road A1A) rather than state roads, and still other areas are restricted by geography (inlets) or usage (e.g. nature preserves and the Kennedy Space Center). The longest of the route's seven sections runs 106 miles (171 km) from Stuart to Cocoa, while three of the sections are less than 10 miles (15 km) long

The southern terminus of the first section of SR A1A is at the southern end of Bertha Street, where SR A1A begins as a two-lane, then a four-lane highway along the Straits of Florida in Key West, known locally as South Roosevelt Boulevard. The road heads east past East Martello Tower and Key West International Airport, before curving north with an intersection with CR 5A (Flagler Avenue), followed by the northern terminus of the Key West section of SR A1A, U.S. Route 1 and State Road 5 (the Overseas Highway). Running along the south shore of Key West, SR A1A is the southernmost numbered highway in the lower 48 states.

SR A1A reappears at Interstate 395 and US 1 in Miami, beginning at MacArthur Causeway before becoming Collins Avenue at Fifth Street in Miami Beach (or, in small segments, Harding Avenue, Abbott Avenue, or Indian Creek Drive), serving as one of Miami Beach's main north — south thoroughfares. Just north in the town of Surfside, the northbound is Collins Avenue, and the southbound is Harding Avenue. In Bal Harbour it is called Bal Harbour Boulevard. In Golden Beach it is called Ocean Boulevard.

It serves Hallandale Beach, Hollywood Beach, and Dania Beach. It joins with US 1 for 3.4 miles, and passes the Fort Lauderdale–Hollywood International Airport. It then divides and serves Fort Lauderdale, Pompano Beach, and continuing north.

It serves as the main road throughout much of the exclusive Palm Beach, further to the north.

In the area of Vero Beach, SR A1A is called the Robert C. Spillman Memorial Highway, and it spans Sebastian Inlet at the Sebastian Inlet Bridge.

SR A1A next passes just to the west of Cape Canaveral and the John F. Kennedy Space Center.

Two miles of SR A1A were used as part of the well-known Daytona Beach Road Course.

SR A1A also passes through St. Augustine, the oldest continuously-inhabited city on the mainland of the United States.

SR A1A is called 3rd Street in Jacksonville Beach and Neptune Beach.

Just south of Atlantic Beach, SR A1A turns inland for several blocks, following Atlantic Boulevard, before resuming a northward course along Mayport Road that ends at the St. Johns River. A ferry takes traffic to the northern section of SR A1A that continues along the coast to just south of Fort Clinch State Park on the estuary of the Saint Mary's River. At that point SR A1A hooks back south to Fernandina Beach and then turns west, going inland 20 miles through Yulee and crossing I-95 and U.S. Highway 17. It ends at U.S. Highway 1, U.S. Highway 23, and U.S. Highway 301 in Callahan. This section west of Fernandina Beach, is also marked as SR 200, but SR A1A signs are displayed at every cluster of signs, though a designated direction is only above the SR 200 signs.

Prior to the 1945 renumbering, the route that became SR 1 had the following numbers:

SR 182 from Miami to Miami Beach SR 140 from Miami Beach to Dania Beach SR 178 from Dania Beach to Dania SR 177 from downtown Fort Lauderdale east to the Atlantic Ocean SR 140 from the Atlantic Ocean in Fort Lauderdale to Palm Beach SR 305 from Palm Beach to West Palm Beach SR 25 from Palm Beach to West Palm Beach SR 196 from Lake Park to south of Jupiter SR 176 from North Palm Beach to Jupiter SR 200 from south of Jupiter to Jupiter SR 140 from Jupiter to Stuart SR 140 from north of Stuart to Jensen Beach SR 224 from Jensen Beach east to the Atlantic Ocean unnumbered from the Atlantic Ocean east of Jensen Beach to the Martin/St. Lucie County line SR 332 from the Martin/St. Lucie County line to the Atlantic Ocean east of Fort Pierce SR 559 from the Martin/St. Lucie County line (?) to Fort Pierce SR 162 from the Atlantic Ocean east of Fort Pierce to Fort Pierce SR 140 north of Fort Pierce SR 559 from Fort Pierce to Vero Beach SR 140 from Vero Beach to near Canaveral Harbor SR 252 from Vero Beach to Wabasso Beach SR 273 from near Canaveral Harbor to north of Canaveral SR 140 from north of Canaveral to New Smyrna Beach SR 119 southwest of Titusville Beach SR 140 from Ponce Inlet to St. Augustine SR 21 in Daytona Beach SR 468 in Ormond Beach SR 140 from St. Augustine to Jacksonville

SR 1 was defined in the 1945 renumbering as:

From the intersection of 13th St. and SR 5 in Miami east along 13th St. and across the 13th St. Causeway (now called the MacArthur Causeway) to Miami Beach, then northerly along the Ocean Route via Surfside and Hallandale Beach to a point on SR 5 in Dania Beach. From the intersection of East Las Olas Boulevard and SR 5 in Ft. Lauderdale, east along East Las Olas Blvd.; then across New River Sound, then northerly via Deerfield Beach – Boca Raton – Lake Worth Beach to a point on SR 5 in West Palm Beach. Also from the intersection of Southern Blvd. and SR 5 in West Palm Beach east across Lake Worth Beach to a junction with SR 1 in Palm Beach. From the intersection of Park Ave. and SR 5 in Lake Park, west on Park Ave. to 10th St., thence northerly via Jupiter to a junction with SR 5 in Stuart. From a point on SR 5 north of St. Lucie River in Stuart, then northeasterly via Jensen and across the Indian River, then northwesterly to a junction with SR 5 in Ft. Pierce. From an intersection with SR 5 in Ft. Pierce northerly to a junction with SR 605, thence easterly across the Indian River, thence northerly via Vero Beach, Melbourne Beach, Cocoa Beach, Canaveral, and Titusville Beach to a junction with SR 5 in New Smyrna Beach. Also a leg running northwesterly from a point on SR 1 approximately two miles south of Titusville Beach to a junction with SR 402 approximately one mile west of Titusville Beach in Brevard County. From a point approximately nine miles south of Daytona Beach northwesterly via Daytona Beach, Ormond, and Flagler Beach to a junction with SR 5 in St. Augustine. Also at the intersection of SR 5 and SR 600, east on Volusia Ave., then north on North Beach St., then east on a bridge across the Halifax River and on Broadway to a junction with SR 1, all in Daytona Beach. Also at the intersection Granada Ave. and SR 5, east on Granada Ave. across the Halifax River to a junction with SR 1 – all in Ormond. From the intersection of May St. and SR 5 in St. Augustine, northeasterly along May St. and across the North River to Vilano, then northerly via Ponte Vedra – Jacksonville Beach to the city limits of Atlantic Beach and Neptune Beach, then west along Atlantic Blvd. to a junction with SR 5 in Jacksonville.

Since then, the following changes have been made:

The section in Key West was added. The portion of A1A on Bertha Street from the beaches to Roosevelt Boulevard (US 1) was later relinquished to the city. The bridge over the Intracoastal Waterway in Fort Lauderdale was moved south; the old one became "SR A1A ALT" (now SR 842). The part from Lake Park to Jupiter became "SR A1A ALT" (now SR 811), and two new sections were added along the shore, from Riviera Beach to north of Lake Park (formerly State Road 703) and from Juno Beach to Jupiter. The latter is now CR A1A. The part from Jupiter to Hobe Sound became SR 707; SR A1A was extended south from Hobe Sound to meet SR 5 (U.S. Route 1). This part is now CR A1A. The part north of Stuart (including a segment that was signed State Road 705) was extended south to incorporate the Ernest F. Lyons Bridge and give a more direct access to the Atlantic Ocean from Stuart; the old road became SR A1A Alternate (now CR 707 and SR 732). Recently the part in downtown Stuart, west of SR 714, became CR A1A. Both bridges over the Intracoastal Waterway in Fort Pierce were rebuilt and moved slightly south. The approach to the south one moved two blocks south. When Kennedy Space Center was built around 1962, SR A1A through it was closed and rerouted from the south to go west on SR 528. A small piece of the old road may have become SR 401, but SR 401 now ends before it reaches the old road. Cape Road, which runs east of Launch complex 39, was SR A1A; it ended at former SR 402 at Playalinda Beach. The part from there to south of New Smyrna Beach was never built. SR A1A south of New Smyrna Beach is now CR A1A; part of it in New Smyrna Beach still exists, and ends 10 miles (16 km) south of New Smyrna Beach near Turtle Mound. The part connecting to Titusville Beach was never built. The part south of Daytona Beach was routed onto a new bridge at Port Orange; the old road south of the bridge became CR A1A and is now CR 4075. SR A1A was realigned away from the Atlantic Ocean south of St. Augustine onto what had been SR 3; the south half of the old road became CR A1A. The two sections in St. Augustine were connected when SR 5 (U.S. Route 1) was moved west onto a bypass and old SR 5 became SR 5A (Alt US 1). The north bridge over the Intracoastal Waterway at St. Augustine was moved north, with the east approach moving two blocks north. A bypass was built around Ponte Vedra Beach; the old road became SR 203 (later CR 203 in St. Johns County and Duval County). SR A1A was moved out of Jacksonville and onto what had been part of SR 101, a new alignment to the ferry across the St. Johns River, and what still is SR 105 and SR 200. The old road became an extension of SR 10. None of the spurs to the mainland are SR A1A any more. The one at West Palm Beach became part of SR 80 on October 25, 1946; the ones at Daytona Beach (now SR 600) and Ormond Beach (now SR 40) were longer, for SR 40 did not originally go to Ormond Beach.

Jungle Trail
U.S. National Register of Historic Places
Show map of Florida Show map of the United States
Location	Indian River County, Florida
Nearest city	Orchid
Coordinates	27°51′30″N 80°27′00″W / 27.85833°N 80.45000°W / 27.85833; -80.45000
NRHP reference No.	03000700
Added to NRHP	August 1, 2003

The Jungle Trail (pre-1945 State Road 252) was part of A1A in northeastern Indian River County, Florida. The narrow, 7+1⁄2-mile-long (12.1 km) road is located between Old Winter Beach Road and the current A1A, along the western side of Orchid Island, and is unpaved. It is part of the Indian River Lagoon Scenic Highway system, and the southernmost road in the highway system. Part of the trail goes through the Pelican Island National Wildlife Refuge.

The road started as a means to quickly transport citrus to packinghouses on the mainland, then in the 1930s and 1940s became more used by tourists. On August 1, 2003, it was added to the United States National Register of Historic Places.

County	Location	mi	km	Destinations	Notes
Monroe	Key West	0.000	0.000	Bertha Street	Southern terminus
		2.625	4.225	CR 5A south (Flagler Avenue)	former SR 5A south
		2.895	4.659	US 1 (Roosevelt Boulevard / Overseas Highway / SR 5)
Gap in route
Miami-Dade	Miami	0.000	0.000	I-395 west (SR 836) / US 1 (Biscayne Boulevard) to I-95 – Airport	Highway continues west as I-395; US 1 (SR 5) exit is exit 2; I-95 is exit 1
		0.2	0.32	MacArthur Causeway over Intracoastal Waterway
		0.5	0.80	SR 887 (Port Miami via Tunnel)	Interchange; northbound exit and southbound entrance
		0.9	1.4	Watson Island, Jungle Island, Miami Children's Museum & Miami Seaplane Base	Interchange
	Miami Beach	1.634	2.630	Fountain Street – Palm Island, Hibiscus Island	Eastern terminus of freeway section
		3.192	5.137	SR 907 north (Alton Road)	Northbound flyover ramp; southern terminus of SR 907
		4.913	7.907	17th Street	To Venetian Causeway
		6.411	10.318	SR 112 west (Arthur Godfrey Road) to I-95 – Airport	Eastern terminus of SR 112
		8.658	13.934	SR 907 south (63rd Street)	Northern terminus of SR 907
		9.452	15.212	SR 934 west (71st Street) – Airport	Eastern terminus of SR 934
	Surfside–Bal Harbour line	11.592	18.656	SR 922 west (96th Street) to I-95	Eastern terminus of SR 922
	Sunny Isles Beach	14.590	23.480	SR 826 west (Sunny Isles Boulevard) to US 1	At-grade intersection with northbound flyover; eastern terminus of SR 826
		16.244	26.142	SR 856 west (William Lehman Causeway) to US 1	At-grade intersection with northbound flyover; eastern terminus of SR 856
Broward	Hallandale Beach–Hollywood line	18.488	29.754	SR 858 west (Hallandale Beach Boulevard) to I-95	At-grade intersection with northbound flyover; eastern terminus of SR 858
	Hollywood	20.3	32.7	SR 820 west (Hollywood Boulevard) to Florida's Turnpike / I-95	Interchange; eastern terminus of SR 820
		21.806	35.093	SR 822 west (Sheridan Street) to I-95	Eastern terminus of SR 822
		23.4	37.7	Dania Beach Boulevard Bridge over Intracoastal Waterway
	Dania Beach	25.166	40.501	US 1 south to I-95	Southern terminus of concurrency with US 1 (SR 5)
	Fort Lauderdale–Hollywood– Dania Beach tripoint	25.978	41.808	SR 818 west (Griffin Road) to Taylor Road / I-95 / Florida's Turnpike	Eastern terminus of SR 818
		26.5	42.6	Fort Lauderdale-Hollywood International Airport	Interchange
		27.4	44.1	I-595 west to I-95 / Florida's Turnpike – Port Everglades	No southbound access to Port Everglades; exits 12A-B on I-595
	Fort Lauderdale	28.240	45.448	SR 84 west (Marina Boulevard) to Florida's Turnpike / I-95 – Port Everglades	Eastern terminus of SR 84
		28.757	46.280	US 1 north / Southeast 17th Street west (CR 811 north) – Downtown	Northern terminus of concurrency with US 1 (SR 5)
		29.9	48.1	17th Street Causeway over Intracoastal Waterway
		31.721	51.050	Las Olas Boulevard – Downtown Fort Lauderdale	former SR 842 west
		33.031	53.158	SR 838 west (Sunrise Boulevard) to I-95 / Florida's Turnpike	Eastern terminus of SR 838
		35.514	57.154	SR 816 west (Oakland Park Boulevard) to I-95	Eastern terminus of SR 816
	Lauderdale-by-the-Sea	36.619	58.933	SR 870 west (Commercial Boulevard)	Eastern terminus of SR 870
	Pompano Beach	39.541	63.635	SR 814 west (Atlantic Boulevard) to US 1	Eastern terminus of SR 814
		40.868	65.771	SR 844 (Northeast 14th Street) to US 1	Eastern terminus of SR 844; to Northeast 14th Street Causeway
	Hillsboro Inlet	41.76	67.21	Hillsboro Inlet Bridge
	Deerfield Beach	45.477	73.188	SR 810 west (Hillsboro Boulevard) to I-95	Eastern terminus of SR 810
Palm Beach	Boca Raton	48.094	77.400	Palmetto Park Road (CR 798 west) to I-95	Eastern terminus of CR 798 (former SR 798)
		50.568	81.381	SR 800 west (Spanish River Boulevard)	Eastern terminus of SR 800
	Delray Beach	54.246	87.300	Linton Boulevard (CR 782 west) to I-95	Eastern terminus of CR 782 (former SR 782)
		55.793	89.790	SR 806 west (East Atlantic Avenue) to I-95	Eastern terminus of SR 806
		56.701	91.251	George Bush Boulevard (CR 806A west)	Eastern terminus of CR 806A (former SR 806A)
	Ocean Ridge	59.470	95.708	Woolbright Road (CR 792 west) to I-95	Eastern terminus of unsigned CR 792 (former SR 792)
		60.385	97.180	SR 804 west (Ocean Avenue) to I-95	Eastern terminus of SR 804
	Manalapan–Lantana line	64.400	103.642	Ocean Avenue (CR 812 west) to I-95	Eastern terminus of unsigned CR 812
	Lake Worth Beach	66.552	107.105	SR 802 west (Lake Avenue)	To Lake Worth Bridge; eastern terminus of SR 802
	Palm Beach	70.8	113.9	US 98 west / SR 80 west (Southern Boulevard) to I-95 / US 1	Traffic circle; eastern terminus of US 98 / SR 80
		73.053	117.567	SR 704 west (Royal Palm Way) to I-95 / Florida's Turnpike	Eastern terminus of SR 704
	Lake Worth Lagoon	74.6	120.1	Flagler Memorial Bridge
	West Palm Beach	74.7	120.2	Flagler Drive	Interchange; northbound exit and southbound entrance
		74.894	120.530	US 1 (Dixie Highway / Quadrille Boulevard / SR 5)
	Gap in route, connection made via US 1
	Riviera Beach	0.000	0.000	US 1 (Broadway / SR 5) / SR 708 west (Blue Heron Boulevard)	Eastern terminus of SR 708
		0.6	0.97	Blue Heron Bridge over Lake Worth Lagoon
	Palm Beach Gardens	6.207	9.989	US 1 (Federal Highway / SR 5) / SR 786 west (PGA Boulevard) to Florida's Turnpike / I-95
Gap in route, connection made via US 1
Martin	Stuart	1.765	2.840	SR 714 west (Southeast Monterey Road) to US 1 / Florida's Turnpike / East Ocean Boulevard (CR A1A west)	Eastern terminus of SR 714; transition between unsigned CR A1A and SR A1A
	Sewall's Point	2.9	4.7	Evans Crary Bridge over St. Lucie River
		3.335	5.367	Sewalls Point Road (CR 707) – Jensen Beach	Southern terminus of unsigned CR 707
		4.0	6.4	Ernest Lyons Bridge over Indian River
	Jensen Beach	8.1	13.0	SR 732 west (Causeway Boulevard)	Roundabout; eastern terminus of SR 732
St. Lucie	Fort Pierce	26.1	42.0	South Causeway over Indian River
		26.499	42.646	Indian River Drive	Former SR 707
		26.614	42.831	US 1 south (SR 5)	Southern terminus of concurrency with US 1
		27.129	43.660	Old Dixie Highway (CR 605 north)	south end of unsigned CR 605 (former SR 605)
		27.727	44.622	US 1 north (SR 5)	Northern terminus of concurrency with US 1
		27.836	44.798	Old Dixie Highway (CR 605)	unsigned CR 605 (former SR 605)
		28.3	45.5	North Causeway over Indian River
Indian River	Vero Beach	41.091	66.130	SR 656 west (East Causeway Boulevard)	To 17th Street Causeway; eastern terminus of SR 656
		42.576	68.519	SR 60 west (Beachland Boulevard) to I-95	To Merrill P. Barber Bridge; eastern terminus of SR 60
	Wabasso Beach	50.627	81.476	SR 510 west (Wabasso Road) to US 1	Eastern terminus of SR 510
Sebastian Inlet		58.101	93.504	Sebastian Inlet Bridge
Brevard	Indialantic	75.637	121.726	US 192 west (Fifth Avenue / SR 500) to I-95 – Melbourne, Airport	To Melbourne Causeway; eastern terminus of US 192 and unsigned SR 500
	Melbourne	79.010	127.154	SR 518 west (Eau Gallie Boulevard) to I-95 – Airport	To Eau Gallie Causeway; eastern terminus of SR 518
	South Patrick Shores	84.200	135.507	SR 404 west (Pineda Causeway) to US 1	Eastern terminus of SR 404
	Cocoa Beach	94.249	151.679	SR 520 west (Cocoa Beach Causeway)	Eastern terminus of SR 520
	​	97.69	157.22	Port Canaveral B Cruise Terminals, South Cargo Piers (CR 401 south)	Interchange; south end of freeway
	​	98.363	158.300	SR 401 north – Cape Canaveral Space Force Station, Port Canaveral A Cruise Terminals, North Cargo Piers	Interchange; southern terminus of SR 401 and eastern terminus of SR 528 overlap
	Merritt Island	99.4	160.0	Bennett Causeway over Banana River
		100.46	161.67	Banana River Drive	Exit 52 (SR 528)
		103.02	165.79	SR 3 – Merritt Island, Kennedy Space Center	Exit 49 (SR 528)
	Cocoa	104.8	168.7	Bennett Causeway over Indian River
		105.934	170.484	US 1 (SR 5) – Cocoa, Titusville SR 528 west to I-95 – Orlando	Exit 46 (SR 528); western terminus of concurrency with SR 528
Gap in route
Volusia	New Smyrna Beach	0.000	0.000	CR A1A south (South Atlantic Avenue) / 6th Avenue	South end of state maintenance
		1.8	2.9	South Causeway over Indian River
		2.085	3.355	Live Oak Street to SR 44 east (North Causeway)
		2.163	3.481	SR 44 west (Lytle Avenue)	Northbound exit and southbound entrance
		2.289	3.684	US 1 (Dixie Freeway / SR 5)
	Gap in route
	Port Orange	0.000	0.000	US 1 (South Ridgewood Avenue / SR 5) / SR 421 west (Dunlawton Avenue) to I-95 – New Smyrna Beach, Daytona Beach
		0.8	1.3	Port Orange Causeway over Halifax River
	Port Orange–Daytona Beach Shores line	1.080	1.738	SR 441 north (Peninsula Drive)
	Daytona Beach Shores	1.239	1.994	CR 4075 (South Atlantic Avenue) – Wilbur-by-the-Sea, Ponce Inlet	Northern terminus of CR 4075
	Daytona Beach	5.882	9.466	Silver Beach Avenue (CR 4050 west) — Ballpark	Eastern terminus of unsigned CR 4050
		6.601	10.623	US 92 west (International Speedway Boulevard / SR 600) to US 1 / I-95 / I-4 – DeLand	Eastern terminus of US 92 and unsigned SR 600
		6.961	11.203	Main Street (CR 4040 west)	Eastern terminus of unsigned CR 4040
		7.627	12.274	SR 430 west (Seabreeze Boulevard)	Eastern terminus of SR 430
	Ormond Beach	11.856	19.080	SR 40 west (East Granada Boulevard) to I-95 / US 1	Eastern terminus of SR 40
	Ormond-by-the-Sea	20.668	33.262	Highbridge Road (CR 2002 west)	Eastern terminus of unsigned CR 2002
Flagler	Flagler Beach	25.928	41.727	SR 100 west (Moody Boulevard) to I-95 – Bunnell	Eastern terminus of SR 100
	Hammock Dunes	33.820	54.428	Camino Del Mar to I-95	to Hammock Dunes Bridge
St. Johns	Summer Haven	43.2	69.5	Matanzas Inlet Bridge over Matanzas Inlet
	Crescent Beach	47.907	77.099	SR 206 west to I-95 – Hastings	Eastern terminus of SR 206
	St. Augustine Beach	51.855	83.453	A1A Beach Boulevard (CR A1A north) – St. Augustine Beach	Southern terminus of unsigned CR A1A
	St. Augustine	54.337	87.447	SR 312 west to US 1 / I-95 / A1A Beach Boulevard (CR A1A south) – St. Augustine Beach	Northern terminus of unsigned CR A1A (St. Johns County section); Eastern terminus of SR 312
		57.4	92.4	Bridge of Lions over Matanzas River
		57.591	92.684	US 1 Bus. south (Cathedral Place / SR 5A) to US 1	Southern end of concurrency with Business US 1
		58.877	94.753	San Carlos Avenue to US 1
		58.909	94.805	US 1 Bus. north (San Marco Avenue / SR 5A) – Jacksonville	Northern terminus of concurrency with Business US 1
	Vilano Beach	60.2	96.9	Vilano Causeway over Tolomato River
	Mickler Landing	78.027	125.572	CR 203 north (Ponte Vedra Boulevard) / Mickler Road	Southern terminus of CR 203
	Palm Valley	80.770	129.987	CR 210 west (Palm Valley Road)
	Ponte Vedra Beach	82.265	132.393	Corona Road (CR 210 east)	unsigned CR 210
		83.051	133.658	Solana Road (CR 210A west) – Palm Valley, Ponte Vedra Beach	unsigned CR 210A
Duval	Jacksonville Beach	85.03	136.84	SR 202 west (Butler Boulevard) to I-95 – Jacksonville	Interchange; Eastern terminus of SR 202
		87.299	140.494	US 90 west (Beach Boulevard / SR 212)	Eastern terminus of US 90 and unsigned SR 212
	Neptune Beach–Atlantic Beach line	89.833	144.572	Atlantic Boulevard	south end of SR 10 overlap
		91.11	146.63	SR 10 west (Atlantic Boulevard) / Florida Boulevard – Jacksonville	Interchange; Western terminus of concurrency with SR 10
	Jacksonville	93.376	150.274	SR 101 north (Mayport Road) – Naval Station Mayport Main Entrance, Hanna Park	Southern terminus of SR 101
		94.368	151.871	SR 116 (Wonderwood Road)
		96.827	155.828	Mayport Ferry across St. Johns River
		0.000	0.000	SR 105 south (Heckscher Drive) – Jacksonville	south end of SR 105 overlap
		2.2	3.5	Bridge over Fort George River Inlet
Nassau Sound		10.4	16.7	Nassau Sound Bridge
Nassau	​	16.064	25.853	Buccaneer Trail (CR 105A north)	roundabout; unsigned CR 105A
	Fernandina Beach	19.733	31.757	CR 108 west (Sadler Road)	roundabout; eastern terminus of CR 108
		21.757	35.014	Fletcher Avenue	north end of SR 105 overlap; south end of SR 200 overlap
	see SR 200 (mile 155.816-127.867)
	Callahan	49.706	79.994	US 1 / US 23 / US 301 (SR 15 / SR 200 west)	Western terminus of concurrency with SR 200
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus       Incomplete access       Route transition

County Road A1A
Location	Palm Beach County, Martin County, Volusia County, St. Johns County
Length	32.68 mi (52.59 km)

County Road A1A is a county road in four counties in the U.S. state of Florida. The route is discontinuous and functions as a spur of State Road A1A.

CR A1A in Palm Beach County is a former routing of SR A1A through Juno Beach and Jupiter. It serves as a paralleling alternate route to Federal Highway (US 1), and is often erroneously signed as SR A1A despite its official county designation and maintenance.

The longest of the four county spurs, County Road A1A is 15.88-mile (25.56 km) that runs along the Florida East Coast Railroad main line from Jonathan Dickinson State Park in Hobe Sound to Stuart, where it suddenly changes course and runs east along the south coast of the St. Lucie River. After the terminus of SR 714, it approaches the Evans Crary Bridge separating Stuart and Sewall's Point and becomes SR A1A.

County Road A1A is a 7-mile (11 km) spur route of State Road A1A in Volusia County, Florida, United States. The route begins at U.S. Route 1 and State Road A1A in Downtown New Smyrna Beach as Lytel Avenue. Next, the route crosses the Intracoastal Waterway and Callalisa Creek before heading southbound. After the 2 bridges, the road becomes 3rd Avenue, the northern terminus of Saxon Drive as the first right after Callalisa Creek. East of Indian River Village Shopping Center, the road turns southward and becomes Atlantic Avenue. At the intersection of 27th Avenue, the road becomes 2 lanes wide. Less than a mile south of New Smyrna Beach, Saxon Drive ends. At Bethune Beach, the road slightly turns away from the Atlantic Ocean. The road becomes Turtle Mound Road at that point. After Bethune Beach, the road is midway between the Intracoastal Waterway and the Atlantic Ocean. At this point, a gate brings access to Canaveral National Seashore. It passes through the ghost town of Eldora. The road ends as a dead end at a beach.

County Road A1A is a 3.40-mile (5.47 km) spur route of SR A1A in St. Augustine Beach that runs closer to the Atlantic Ocean than SR A1A. It runs northeast from SR A1A, but begins to straighten out between John Drive and a private driveway south of F Street. The closest thing resembling a major intersection is 16th Street. After passing by the St Johns County Ocean Pier, the road intersects Pope Road and leaves the city limits, where it enters Anastasia State Park, and makes a sharp curve to the west. Once the road leaves the park, it features an exceptionally long west-to-north turning ramp towards SR A1A, but ends at the intersection of SRs A1A and 312.

• A1A is mentioned in the 1990 Vanilla Ice song Ice Ice Baby with the lyrics "A1A (Beachfront Avenue)"; in Miami's South Beach, A1A is named Collins Avenue, but "Beachfront Avenue" is a common nickname.
• A1A is the title of a 1974 album by Jimmy Buffett; one of the album's tracks, "Trying to Reason with Hurricane Season", also mentions the road. In 2024, A1A from Key West to the Georgia border was designated the Jimmy Buffett Memorial Highway.

• Scenic and Historic A1A Coastal Byway
• Florida Scenic Highways; Broward County A1A Scenic Highway