Key Biscayne
An island village across the causeway from Miami.
- Population
- 14,809 (2020 census)
- Causeway
- Rickenbacker, 1947
- Incorporated
- June 18, 1991
- Tides
- Two highs, two lows a day
Then
- 1940
The Matheson family gives more than 800 acres to Dade County for a park, if the county builds a causeway. It becomes Crandon Park.
- 1947
The four-mile Rickenbacker Causeway opens the island to development.
- 1967
Bill Baggs Cape Florida State Park opens on January 1 at the island's south end.
- 1969–1973
President Nixon buys waterfront homes here, the “Florida White House,” and visits more than 50 times.
- 1991
Key Biscayne incorporates, the first new city in the county in over 50 years.
Now
Crandon Park covers the north end and Bill Baggs Cape Florida State Park the south, with the village between. Biscayne Bay's southern waters, toward Soldier Key and Cutler, round out this stretch.
On the water
From NOAA's predictions for Coral Shoal, Biscayne Channel, FL over the next 365 days. Heights are in feet above mean lower low water (MLLW).
- Pattern
- Two highs and two lows a day, close in size
- Typical daily range
- 2.2 ft
- Biggest swing
- 3.1 ft on Nov 25
- Smallest swing
- 1.2 ft on Mar 30
- Highest high
- 3.0 ft, Sep 30 at 9:32 AM
- Lowest low
- −0.7 ft, Jan 23 at 2:59 AM
3 tide stations around Key Biscayne
- Coral Shoal, Biscayne Channel2.9 mi
- Soldier Key7.2 mi
- Cutler, Biscayne Bay10.4 mi