Port St. John is a census-designated place located between Titusville and Cocoa in Brevard County, Florida. The population was 12,267 at the 2010 United States Census. It is part of the Palm Bay–Melbourne–Titusville Metropolitan Statistical Area.


Port St. John is located at (28.564215, -80.633333). It is bordered to the north by Mims and to the south by Cocoa Beach on the Atlantic Ocean side of Florida's East Central Coast region, approximately east of Orlando and west of Miami via Interstate 95 or U.S Route 1/State Road 528 (Beachline Expressway).

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