Florida

St. Johns

273,425
2020 population
1830
first census record
20
census records

About St. Johns

St. Johns, Florida, first appears in the United States federal census in 1830, when it recorded a population of 2,538. At the most recent census, in 2020, its population stood at 273,425.

The county's recorded population has risen across the decades to its highest level in 2020.

On the ground today, 25 documented military engagements have been recorded within the county, among them Menendez Massacre of Shipwrecked French, Battle of St. Augustine Harbor 1565, Massacre of Ribault and Huguenots 1565, and 55 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
2020273,425
2010190,039
2000123,135
199083,829
198051,303
197030,727
196030,034
195024,998
194020,012
193018,676
192013,061
191013,208
19009,165
18908,712
18804,535
18702,618
18603,038
18502,525
18402,694
18302,538
Source

Population data from the United States decennial census, U.S. Census Bureau (public domain).

Battles & engagements in St. Johns

Military engagements that took place in St. Johns, Florida.

Menendez Massacre of Shipwrecked French
1565
Battle of St. Augustine Harbor 1565
1565
Massacre of Ribault and Huguenots 1565
1565
French Counter-Attack on Fort Matanzas 1568
1568
Siege of St. Augustine 1702
1702
Siege of St. Augustine (Queen Anne's War)
1702
Siege of Saint Augustine 1740 (Oglethorpe)
1740
Raid on Fort Diego 1740 (Oglethorpe)
1740
Battle of Fort Mosa 1740
1740
Siege of Fort Mose 1740 (War of Jenkins' Ear)
1740
Oglethorpe's Siege of St. Augustine 1740
1740
Battle of Fort Mosa Second Action 1740
1740
Battle of Bloody Mose 1743
1743
British Capture of Havana 1762
1762
Coacoochee's Escape from Fort Marion
1837
Osceola's Capture Under Truce Flag (October 21, 1837)
1837
Capture of Osceola Under Flag of Truce (1837)
1837
Capture of Osceola / Fort Peyton Truce Flag Incident
1837
Capture of Osceola under White Flag
1837
Blockade Action at St. Augustine Florida
1862
Bombardment of St. Augustine
1862
USS Sagamore vs. Confederate Blockade Runner on St. Johns River
1862
Skirmish at St. Augustine — Confederate Attempt 1862
1862
St. Augustine Union Occupation
1862
Battle of Volusia FL (Dickison at Volusia County)
1864

Historic places in St. Johns

National Register of Historic Places listings in St. Johns, Florida.

Gonzalez-Alvarez House
St. Augustine
Cathedral of St. Augustine
St. Augustine
Sanchez Homestead
Elkton
Old St. Johns County Jail
St. Augustine
Sanchez Powder House Site
St. Augustine
Avero House
St. Augustine
Ximenez-Fatio House
St. Augustine
Walker, Horace, House
St. Augustine
Milam, Arthur, House
Ponte Vedra Beach
Fountain of Youth Archeological Park
St. Augustine
Hotel Ponce De Leon
St. Augustine
Government House
St. Augustine
St. Augustine Town Plan Historic District
St. Augustine
St. Augustine Alligator Farm Historic District
St. Augustine
Fort Mose Site, Second
St. Augustine
Grace United Methodist Church
St. Augustine
St. Augustine Civic Center
St. Augustine
Alcazar Hotel
St. Augustine
Solla-Carcaba Cigar Factory
St. Augustine
Fort Matanzas NM Headquarters and Visitor Center
St. Augustine
Fort Matanzas National Monument
St. Augustine
St. Augustine National Cemetery
St. Augustine
St. Augustine Lighthouse and Keeper's Quarters
St. Augustine
Bridge of Lions
St. Augustine
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Other counties in Florida

Explore census history and historic records for more Florida counties.

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Everything a full report reveals about St. Johns County, Florida

This page charts the census history of St. Johns County, Florida. A full Aubrey report for an address here pulls together everything the historical record holds about the ground, from the earliest settlement to the twentieth century:

Overview
An interactive map of the location with historic sites, battles and Native heritage plotted, and its full story era by era.
The Land
The historic sites and place names around the location, and how this land was settled and used.
Geology
The bedrock beneath the site, its age and rock type, reaching back millions of years.
LiDAR Terrain
Laser-scanned terrain that reveals earthworks and old features hidden in the landscape.
Conflict & War
The battles, raids and skirmishes fought near here, across every era of American conflict.
The Civil War
The Civil War on this ground, 1861 to 1865: who held it, and the battles, camps and regiments nearby.
The Soldiers
The men who marched from here in the Civil War, named and traced where the record allows.
Native Heritage
The Native nations who held this land, mapped across time from before European contact to today.
Settlement
Who claimed and held this ground, from Indigenous homelands through the colonial powers to the United States.
The Community
How the town grew, who came, and what kind of place it became, traced through the census record.
Rivers & Rail
The rivers, canals and railroads that connected this place between 1830 and 1911.
Notable People
The people born, buried or genuinely tied to this exact place, with their stories.
Historical Maps
Historic maps of the location layered over how it looks today.
Finds & Access
Museum objects tied to the area, and the laws on searching, collecting and access here.
Literature
The old books, county histories and archives that mention this place, quoted with their sources.
Spotlight
A deep dive into the most remarkable, lesser-known history of the place, traced back to the record.
Points of Interest
The most significant historic sites and landmarks near the location, and why they matter.
Timeline
The whole story of the location told era by era, from first peoples to the present day.
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Frequently asked about St. Johns

When does St. Johns first appear in the US census?
St. Johns, Florida first appears in the federal census in 1830, with a recorded population of 2,538.
What is the population of St. Johns?
At the most recent federal census (2020), St. Johns had a recorded population of 273,425.
Were any battles fought in St. Johns?
25 documented military engagements took place in St. Johns, including Menendez Massacre of Shipwrecked French, Battle of St. Augustine Harbor 1565, Massacre of Ribault and Huguenots 1565.
How many historic places are in St. Johns?
55 sites are listed on the National Register of Historic Places in St. Johns, Florida.
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