Florida

Monroe

82,874
2020 population
1830
first census record
20
census records

About Monroe

Monroe, Florida, first appears in the United States federal census in 1830, when it recorded a population of 517. At the most recent census, in 2020, its population stood at 82,874.

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 Harney's Massacre / Harney Masssacre 1839, Harney's Chakaika Expedition, Chakaika Killed — Everglades Expedition (August 7, 1840), and 61 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
202082,874
201073,090
200079,589
199078,024
198063,188
197052,586
196047,921
195029,957
194014,078
193013,624
192019,550
191021,563
190018,006
189018,786
188010,940
18705,657
18602,913
18502,645
1840688
1830517
Source

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

Battles & engagements in Monroe

Military engagements that took place in Monroe, Florida.

Harney's Massacre / Harney Masssacre 1839
1839
Harney's Chakaika Expedition
1840
Chakaika Killed — Everglades Expedition (August 7, 1840)
1840
Billy Bowlegs' Surrender (End of Third Seminole War 1858)
1858
Union Navy Seizure of Key West Lighthouse
1861
Confederate Spy Operations from Key West
1862

Historic places in Monroe

National Register of Historic Places listings in Monroe, Florida.

INGHAM (USCGC)
Key West
Key West Historic District
Key West
Mud Lake Canal
Flamingo
HA. 19 (Japanese Midget Submarine)
Key West
Porter, Dr. Joseph Y., House
Key West
Carysfort Lighthouse
Key Largo
Gato, Eduardo H., House
Key West
LaBranche Fishing Camp
Islamorada
Sombrero Key Light
Marathon
U.S. Coast Guard Headquarters, Key West Station
Key West
USCG Cutter DUANE
Key Largo
WESTERN UNION (schooner)
Key West
Little White House
Key West
American Shoal Light
Summerland Key
African Cemetery at Higgs Beach
Key West
John Pennekamp Coral Reef State Park and Reserve
Key Largo
Hemingway, Ernest, House
Key West
Fort Zachary Taylor
Key West
Key West Historic District (Boundary Increase)
Key West
Alligator Reef Light
Islamorada
Sand Key Lighthouse
Key West
Florida Keys Memorial
Islamorada
AFRICAN QUEEN
Key Largo
Dry Tortugas National Park
Key West
Browse all Floridahistoric sites ›

Other counties in Florida

Explore census history and historic records for more Florida counties.

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Everything a full report reveals about Monroe County, Florida

This page charts the census history of Monroe 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 Monroe

When does Monroe first appear in the US census?
Monroe, Florida first appears in the federal census in 1830, with a recorded population of 517.
What is the population of Monroe?
At the most recent federal census (2020), Monroe had a recorded population of 82,874.
Were any battles fought in Monroe?
6 documented military engagements took place in Monroe, including Harney's Massacre / Harney Masssacre 1839, Harney's Chakaika Expedition, Chakaika Killed — Everglades Expedition (August 7, 1840).
How many historic places are in Monroe?
61 sites are listed on the National Register of Historic Places in Monroe, Florida.
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