Florida

Seminole

470,856
2020 population
1920
first census record
11
census records

About Seminole

Seminole, Florida, first appears in the United States federal census in 1920, when it recorded a population of 10,986. At the most recent census, in 2020, its population stood at 470,856.

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

On the ground today, 6 documented military engagements have been recorded within the county, among them Battle of Lake Monroe, Battle of Fort Mellon (Lake Monroe 1837), Battle of Lake Monroe (Fort Mellon — February 1837), and 19 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
2020470,856
2010422,718
2000365,196
1990287,529
1980179,752
197083,692
196054,947
195026,883
194022,304
193018,735
192010,986
Source

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

Battles & engagements in Seminole

Military engagements that took place in Seminole, Florida.

Battle of Lake Monroe
1837
Battle of Fort Mellon (Lake Monroe 1837)
1837
Battle of Lake Monroe (Fort Mellon — February 1837)
1837
Fort Mellon Engagement (February 1837)
1837
Battle of Lake Monroe FL Feb 1837
1837
Fort Mellon Engagement 1837
1837

Historic places in Seminole

National Register of Historic Places listings in Seminole, Florida.

Old Fernald-Laughton Memorial Hospital
Sanford
Seminole County Home
Sanford
Lake Mary Chamber of Commerce Building
Lake Mary
Hopper Academy
Sanford
Sanford Grammar School
Sanford
St. James A. M. E. Church
Sanford
Bradlee-McIntyre House
Longwood
Browse all Floridahistoric sites ›

Other counties in Florida

Explore census history and historic records for more Florida counties.

OsceolaPalm BeachPascoPinellasPolkPutnamSanta RosaSarasotaSt. JohnsSt. LucieSumterSuwanneeTaylorUnionVolusiaWakullaWaltonWashingtonAlachuaBaker
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Everything a full report reveals about Seminole County, Florida

This page charts the census history of Seminole 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 Seminole

When does Seminole first appear in the US census?
Seminole, Florida first appears in the federal census in 1920, with a recorded population of 10,986.
What is the population of Seminole?
At the most recent federal census (2020), Seminole had a recorded population of 470,856.
Were any battles fought in Seminole?
6 documented military engagements took place in Seminole, including Battle of Lake Monroe, Battle of Fort Mellon (Lake Monroe 1837), Battle of Lake Monroe (Fort Mellon — February 1837).
How many historic places are in Seminole?
19 sites are listed on the National Register of Historic Places in Seminole, Florida.
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