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LakeQuality

Updated August 2026

Biggest Lake in Florida: Lake Okeechobee (467,200 acres)

Lake Okeechobee is Florida's largest lake per the South Florida Water Management District / Florida FWC / USACE Jacksonville District. Below: 50 graded Florida lakes ranked by surface area.

The largest lake in Florida is Lake Okeechobee at 467,200 acres , in Okeechobee, Glades, Hendry, Martin, and Palm Beach County, according to the South Florida Water Management District / Florida FWC / USACE Jacksonville District.

Lake Okeechobee isn't in our water-quality index — we grade lakes with enough EPA Water Quality Portal samples to score, which leaves out many large reservoirs and border waters. The ranking below covers the 50 Florida lakes we do grade, led by Lake Okee Rim Canal.

Source: South Florida Water Management District / Florida FWC / USACE Jacksonville District (2026-07-30). The table below ranks the Florida lakes in our own index by surface area.

50
Lakes with area data
467,200
Largest (acres)
216
Median of top 50
50/50
Reservoirs (vs natural)

Reading Florida's size profile

Florida's largest lake by surface area is Lake Okee Rim Canal in Glades County, spanning 467,200 acres. Most of Florida's biggest waters are reservoirs — dammed river valleys built for water supply, flood control, and recreation, so their footprints shift with pool level.

Surface area is a poor proxy for water quality on its own — a large lake can hold a clean, deep core and a nutrient-loaded bay at the same time. Each lake below links to its full report card with grade, clarity, depth, and EPA impairment status. Area figures come from state DNR surveys and the USACE National Inventory of Dams; grades come from EPA and state monitoring data.

The 50 biggest lakes in Florida by surface area

#LakeCountySurface areaMax depthGrade
1Lake Okee Rim CanalGlades467,200 acres-NR
2Lake SeminoleJackson37,500 acres-B
3Rod Res Dam East LakePutnam7,807 acres-NR
4Deerpoint LakeBay4,700 acres-NR
5Polk-Lulu LakePolk4,640 acres-B
6Lake HancockPolk4,541 acres-D
7Lake RousseauCitrus4,060 acres-NR
8Highlands-Francis LakeHighlands3,662 acres-NR
9Dead LakeGulf2,985 acres-B
10Lake Tarpon CanalPinellas2,529 acres-C
11Plrvvillacity LakeLake2,442 acres-NR
12Lake ManateeManatee2,200 acres-NR
13Lake SmartPolk1,820 acres-B
14Lake HenryPolk861 acres-NR
15Polk-Whistler LakePolk764 acres-B
16Lake GibsonPolk474 acres-NR
17Hillsborough-Island Ford LakeHillsborough431 acres-B
18Lake MaggiorePinellas384 acres-C
19Hernando-Hunter LakeHernando349 acres-B
20Allignorth LakeColumbia322 acres-NR
21Lake SeminolePinellas320 acres-D
22Scott Lake WestPolk292 acres-NR
23Hillsborough-Pretty LakeHillsborough284 acres-B
24Munson LakeLeon253 acres-B
25Kings Lake South LobeWalton229 acres-B
26Lake IstokpogaHighlands216 acres-D
27Lkconine LakePolk211 acres-NR
28Tallavana LakeGadsden206 acres-D
29Lake GlenadaHighlands176 acres-B
30Highlands-August LakeHighlands150 acres-D
31Hillsborough-Grady LakeHillsborough120 acres-D
32Alligator LakeColumbia116 acres-C
33Clay-Asbury North LakeClay110 acres-B
34Sumter-Big Gant LakeSumter93 acres-C
35Mckay Creek LakePinellas85 acres-B
36Smith Pond CenterWashington81 acres-NR
37Alligator LakePinellas79 acres-D
38Bonnet-Col LakePolk79 acres-D
39Whitetrout LakeHillsborough75 acres-B
40Walton-Spring LakeWalton67 acres-B
41Lake Piney-ZLeon63 acres-B
42Clay-Asbury South LakeClay61 acres-B
43Hernando-Spring LakeHernando54 acres-NR
44North LakeHillsborough54 acres-NR
45Leon-Blue Heron LakeLeon47 acres-B
46Dogwood Lakes Ne LobeHolmes43 acres-NR
47Lake VedraSt. Johns42 acres-D
48Slverlk LakeLeon35 acres-NR
49Hillsborough-Armistead LakeHillsborough33 acres-B
50Lake KanturkLeon33 acres-NR

Frequently Asked Questions

What is the largest lake in Florida?

Lake Okeechobee, at 467,200 acres, in Okeechobee, Glades, Hendry, Martin, and Palm Beach County. Source: South Florida Water Management District / Florida FWC / USACE Jacksonville District, 2026-07-30.

How is lake surface area measured?

Surface area comes from state DNR lake surveys and, for reservoirs, US Army Corps of Engineers (USACE) National Inventory of Dams records. Area is reported in acres at normal pool level. Reservoirs rise and fall with management and drought, so their listed area is the long-term normal rather than a single-day reading.

Are Florida's largest lakes natural or reservoirs?

Of the top 50 Florida lakes by area, 50 sit on a dammed river (reservoirs) and 0 are natural basins. Glacial states (MN, WI, MI, NY) skew natural; plains and southern states (MO, IA, ND, OH) skew toward reservoirs built for water supply, flood control, and recreation.

Do larger lakes have better water quality?

Not reliably. Quality varies more within a big lake than between lakes — a large lake can have a clean, deep main basin and a murky, algae-prone bay fed by a tributary, so one grade can mask wide swings. Depth, watershed land use, and how fast the lake flushes matter far more than raw surface area.

How big is the typical Florida lake in this ranking?

Across the top 50 Florida lakes by surface area, the median is 216 acres (Lake Istokpoga). This list is biased toward the biggest waters; the typical Florida lake is far smaller.

Where to stay near Florida's largest lakes

Planning a trip? Jump to live cabin, resort, and hotel availability near Florida's biggest lakes.