Port St. John, Florida
Area codes 321, 407, 689 · Population: 12,267
Eastern (ET)
Florida
Pop. 12,267
Area Codes Serving Port St. John
About Port St. John, Florida
Port St. John is a city in Florida that is served by area codes 321, 407, 689. The city has a population of approximately 12,267 residents and is located in the Eastern Time Zone.