St. Johns County | |
|---|---|
.JPG) St. Johns County Courthouse | |
 Flag  Seal | |
 Location within the U.S. state of Florida | |
 Florida's location within the U.S. | |
| Coordinates: 29°55′N 81°25′W / 29.91°N 81.41°W | |
| Country |  United States |
| State |  Florida |
| Founded | July 21, 1821 |
| Named for | San Juan del Puerto |
| Seat | St. Augustine |
| Largest community | St. Johns |
| Area | |
• Total | 822 sq mi (2,130 km2) |
| • Land | 601 sq mi (1,560 km2) |
| • Water | 221 sq mi (570 km2) 26.9% |
| Population (2020) | |
• Total | 273,425  |
| • Density | 455/sq mi (176/km2) |
| Time zone | UTC−5 (Eastern) |
| • Summer (DST) | UTC−4 (EDT) |
| Congressional districts | 5th, 6th |
| Website | www |
St. Johns County is a county in the northeastern part of the U.S. state of Florida. As of the 2020 United States census, its population was 273,425.[1] The county seat and most populous incorporated city is St. Augustine, although the nearby community, St. Johns, has a higher population.[2] St. Johns County is part of the Jacksonville, Florida Metropolitan Statistical Area.
The county was established in 1821. It is one of the two original counties established after Florida was ceded to the United States, at the start of the Florida Territorial period, and corresponded roughly to the former colonial province of East Florida. It was named for the St. Johns River, which runs along its western border.
Today, St. Johns County primarily comprises residential bedroom communities for those who commute to Jacksonville. Tourism, primarily associated with St. Augustine and the many golf courses in the area, is the chief economic industry.
- ^ "St. Johns County, Florida". U.S. Census Bureau Quickfacts. Retrieved December 10, 2021.
- ^ "Find a County". National Association of Counties. Retrieved June 7, 2011.