Islamorada mile markers: where everything sits on US 1

On US 1, the Overseas Highway, Keys addresses are given by mile marker, and the Village says Islamorada sits between Mile Marker 90.0 and Mile Marker 72.6. The numbers go down as you drive south. Street numbers roughly follow them: Theater of the Sea gives 84721 Overseas Hwy as Mile Marker 84.5, and Robbie’s gives 77522 as Mile Marker 77.5. The table below uses only markers a source has published. The most detailed chart on page one of search results was compiled in early 2003; ours was checked on October 21, 2026.

• The Village says Islamorada sits in the middle of the Florida Keys, between Mile Marker 90.0 and Mile Marker 72.6 on U.S. Highway 1. Islamorada, Village of Islands: Why Islamorada Matters
• The Village names five inhabited islands: Plantation Key, Windley Key, Upper Matecumbe Key, Lower Matecumbe Key and Tea Table Key. Islamorada, Village of Islands: Why Islamorada Matters

The keys in order, north to south

Heading south, US 1 crosses Plantation Key, then the Snake Creek Bridge onto Windley Key, then the Whale Harbor Bridge onto Upper Matecumbe Key. After that come the Tea Table and Indian Key Channel bridges across Indian Key Fill, and then the Irving R. Eyster Bridge onto Lower Matecumbe Key. The bridge names come from OpenStreetMap’s map data. The Village also lists Tea Table Key as one of its five inhabited islands. Indian Key and Lignumvitae Key are state park islands you reach only by boat or kayak, and are not among the Village’s five. FDOT puts the Tea Table Relief Bridge at Mile Marker 79.8 and says it received final acceptance of that bridge’s rehabilitation on January 27, 2025.

• FDOT says it rehabilitated the Tea Table Relief Bridge at Mile Marker 79.8 on US 1 starting November 2023, with final acceptance received January 27, 2025. FDOT South Florida: Tea Table Relief Bridge Rehabilitation Project
• Florida State Parks says Indian Key is accessible only by boat, about a half-mile offshore, and that one of the best ways to reach the 11-acre island is paddling over the seagrass flats. Florida State Parks: Indian Key Historic State Park
• Florida State Parks says Lignumvitae Key is accessible by boat or kayak only; the listed address is 77200 Overseas Highway, Islamorada FL 33036. Florida State Parks: Lignumvitae Key Botanical State Park

Places by mile marker

Each row is a place with a posted mile marker, linked to the page that posts it. “Side” appears only when the source says bayside or oceanside. Where the source does not name the key, it comes from the place’s map pin relative to the bridges.

Mile marker	Place	Side of US 1	Key	Source
MM 90.8	Plantation Tropical Preserve (kayak launch)	not stated	Plantation Key	Village: Parks & Beaches
MM 87	Founders Park and the Plantation Yacht Harbor Marina boat ramp	bayside	Plantation Key	Village: Plantation Yacht Harbor Marina
MM 87	Plantation Hammock Preserve	the Village says “Bayside and Oceanside”	Plantation Key	Village: Parks & Beaches
MM 85	Island Grill	oceanside	Windley Key	Island Grill: Locations
MM 85	Drop Anchor Resort	oceanfront (the lodge’s word)	Windley Key	Drop Anchor
MM 84.9	Windley Key Fossil Reef Geological State Park	not stated	Windley Key	Florida State Parks
MM 84.5	Theater of the Sea	oceanside	Windley Key	Theater of the Sea: Show Schedule & Map
MM 82.1	Islander Resort	oceanside (“oceanside resort”)	Upper Matecumbe Key	Islander Resort
MM 82.1	Southwinds Park	not stated	Upper Matecumbe Key	Village: Parks & Beaches
MM 82	Lorelei Restaurant and Cabana Bar	bayside	Upper Matecumbe Key	Lorelei
MM 81.6	Chef Michael’s	oceanside	Upper Matecumbe Key	Chef Michael’s
MM 81.6	The Beach Cafe and Pierre’s at Morada Bay	bayside	Upper Matecumbe Key	Morada Bay
MM 81.5	Hurricane Monument (Florida Keys Memorial)	not stated	Upper Matecumbe Key	National Park Service, NRHP 95000238
MM 81.5	Library Beach Park	bayside	Upper Matecumbe Key	Village: Parks & Beaches
MM 81.5	Islamorada Fish Company	bayside	Upper Matecumbe Key	Islamorada Fish Company: Contact
MM 81.2	Green Turtle Hammock Nature Preserve (kayak launch)	bayside	Upper Matecumbe Key	Village: Parks & Beaches
MM 80.5	Key Tree Cactus Nature Preserve	bayside	Upper Matecumbe Key	Village: Parks & Beaches
MM 79.8	Bud N’ Mary’s Marina	oceanside	Upper Matecumbe Key	Bud N’ Mary’s Marina
MM 79.8	Lazy Days Restaurant	oceanside (“oceanfront”)	Upper Matecumbe Key	Lazy Days
MM 79	Indian Key Fill public boat ramp (listed by FWC as temporarily closed for repairs)	not stated	Indian Key Fill	FWC Boat Ramp Finder
MM 78.5	Indian Key Historic State Park (completely closed since April 2026)	offshore island	Indian Key	Florida State Parks: Kayak Indian Key
MM 77.5	Robbie’s of Islamorada and the Hungry Tarpon	bayside	Lower Matecumbe Key	Robbie’s
MM 73.5	Anne’s Beach (and its two FWC paddlecraft access points)	oceanside	Lower Matecumbe Key	Village: Parks & Beaches

Places with no posted mile marker

These post a street address but no mile marker, so they stay out of the table (street-number order):

• Marker 88, 88000 Overseas Highway (Plantation Key, it says)
• Islamorada Village Hall, 86800 Overseas Highway
• Rain Barrel Village, 86700 Overseas Hwy
• Hog Heaven Sports Bar and Grill, 85361 Overseas Hwy
• Three Waters Resort & Marina and Kindler Wood-Fired Fare, 84001 Overseas Hwy
• Whale Harbor Marina and Wahoo’s Bar and Grill, 83413 Overseas Highway; Chesapeake Beach Resort, 83409
• History of Diving Museum, 82990 Overseas Hwy (see the conflicts below)
• Islamorada Beer Company, 82229; Casa Morada, 82200; Florida Keys History & Discovery Center, 82100
• Cheeca Lodge & Spa and Atlantic’s Edge, 81801; Bass Pro Shops World Wide Sportsman, 81576
• Midway Cafe, 80499; La Siesta Resort & Villas, 80241; Amara Cay Resort, 80001
• Lignumvitae Key Botanical State Park, listed at 77200 Overseas Highway, an address on US 1, not the island

Where the sources disagree

• The north end. The Village says Islamorada starts at MM 90.0, but its Parks & Beaches page posts Plantation Tropical Preserve at MM 90.8. We show both and do not resolve them.
• Indian Key. Florida State Parks gives MM 78.5 for the island, and FWC gives Mile Marker 79 for the Indian Key Fill ramp. FWC lists that ramp as temporarily closed for repairs, while the park’s kayak page still says to launch there. The island itself has been completely closed since April 2026.
• The 2003 chart. It puts Anne’s Beach at MM 73.4, while the Village says MM 73.5 oceanside. It puts the Chamber’s red caboose at MM 82.2, while the Chamber now lists its visitor center at 87100 Overseas Hwy, Mile Marker 87 bayside.
• The Hurricane Monument. The National Park Service gives US 1 at MM 81.5. Some secondary listings say MM 82, and we use the NPS figure.
• The History of Diving Museum. Its Location & Hours page says MM 83, bayside. Its home page gives no mile marker.
• Lorelei. Its site gives only “MM 82, bayside” and no street number. OpenStreetMap files it at 96 Madeira Road.

• The Islamorada Chamber of Commerce & Visitors Center is at 87100 Overseas Hwy, Mile Marker 87 bayside, phone 305-664-4503 or 800-FAB-KEYS. Islamorada Chamber of Commerce: Holiday Fest 2026
• The National Park Service lists the Florida Keys Memorial in the National Register of Historic Places under reference number 95000238, located at US 1 at Mile Marker 81.5 in Islamorada. National Park Service NPGallery: Florida Keys Memorial (NRIS 95000238)
• The History of Diving Museum is at 82990 Overseas Hwy (MM 83), Islamorada, FL 33036, phone 305-664-9737, on the bayside of US 1. History of Diving Museum: Location & Hours
• The Village lists Anne's Beach at MM 73.5 oceanside, open sunrise to sunset, with 300 feet of boardwalk and six pavilions; it reopened August 23, 2019 after Hurricane Irma. Leashed dogs are allowed. Islamorada, Village of Islands: Parks & Beaches
• Florida State Parks posts: "Effective April 2026: Indian Key Historic State Park is completely closed to the public while contractors rebuild the Park's dock. The project is slated to take up to six months." Florida State Parks: Indian Key Historic State Park

Mile markers on the water side

Some Village rules are tied to places. Ordinance 22-05 bans vessels from the area about 300 feet off Port Antigua Beach and White Marlin Beach on Lower Matecumbe Key. It also makes the Whale Harbor Wheel Ditch a Slow Speed Minimum Wake zone, and sets a $250 civil penalty for violations. The Village says sea turtles nest mainly between mile markers 72 and 83, mostly on the Atlantic shoreline, during the nesting season of April 15 to October 31.

• Under Ordinance 22-05, no vessel may be operated within the area generally located 300 feet from Port Antigua Beach and White Marlin Beach, as shown on the Village map. Islamorada, Village of Islands: Ordinance No. 22-05 (vessel restricted areas)
• Ordinance 22-05 establishes a Slow Speed Minimum Wake zone in the Whale Harbor Wheel Ditch, mangrove fringe to mangrove fringe. Islamorada, Village of Islands: Ordinance No. 22-05 (vessel restricted areas)
• Ordinance 22-05 sets the civil penalty for a violation of these vessel rules at $250.00, enforced by uniform boating citation. Islamorada, Village of Islands: Ordinance No. 22-05 (vessel restricted areas)
• The Village says its Code of Ordinances defines sea turtle nesting season as April 15 to October 31; nesting in Islamorada occurs mainly between mile markers 72 and 83, primarily on the Atlantic shoreline. Islamorada, Village of Islands: Sea Turtle Nesting Regulations

Turn the markers into a day

The day planner puts your stops in mile-marker order, and getting here covers the highway, the trail and Freebee.

Islamorada mile markers FAQ

Dates, rules and hours can change. The organisers have the final word: Village of Islamorada (official site)