St. Johns County Address Data

  • State: Florida
  • County: St. Johns County
  • County Seat: Saint Augustine
  • FIPS: 12109
  • Founded in: 1822
  • Population: 254,261
  • Density: 423 Persons/Square Mile
  • Area: 600 Square Miles
  • Government Type: County
  • Authority: Dillon's Rule
  • Legislative Body: County Commission
  • Legislative Body Size: 5
  • County Contact: 4020 Lewis Speedway
    Saint Augustine, FL 32084-8637
  • County site: http://www.co.st-johns.fl.us/
  • Labor Force: 127,595
  • Unemployment Rate: 2.90%
  • Gross Domestic Product (GDP): $7.4 B

Top Cities in St. Johns County

Major Cities (population)

Neighbor Counties

  • Clay County
  • Duval County
  • Flagler County
  • Putnam County
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