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LakeQuality
Two canoes crossing open water between forested points in the Boundary Waters

Updated August 2026

Biggest Lake in Texas: Sam Rayburn Reservoir (114,500 acres)

Sam Rayburn Reservoir is Texas's largest inland lake per the Texas Parks and Wildlife Department (TPWD). Below: 50 Texas lakes ranked by surface area.

The largest lake in Texas is Sam Rayburn Reservoir at 114,500 acres , in Jasper County (dam site); reservoir also spans Angelina, Nacogdoches, Sabine, San Augustine and Tyler counties County, according to the Texas Parks and Wildlife Department (TPWD). Toledo Bend is the largest body of water in Texas overall, but TPWD describes it as 'straddling the Texas-Louisiana state line' — roughly half its surface is in Louisiana, so Sam Rayburn is the largest lake entirely inside Texas.

See our Sam Rayburn Reservoir water-quality report card C

Source: Texas Parks and Wildlife Department (TPWD) (2026-07-30). The table below ranks the Texas lakes in our own index by surface area.

50
Lakes with area data
182,490
Largest (acres)
13,782
Median of top 50
24/50
Reservoirs (vs natural)

Reading Texas's size profile

Texas's largest lake by surface area is Toledo Bend Reservoir Southwest of Haddens in Newton County, spanning 182,490 acres. Most of Texas's biggest waters are natural basins left by glaciers, with stable shorelines and deep main basins.

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 Texas by surface area

#LakeCountySurface areaMax depthGrade
1Toledo Bend Reservoir Southwest of HaddensNewton182,490 acres-NR
2Amistad ReservoirVal Verde89,000 acres-NR
3Lake LivingstonTrinity83,212 acres-NR
4Falcon ReservoirZapata80,555 acres-NR
5Sabine LakeOrange56,867 acres-NR
6Cedar Creek ReservoirHenderson32,711 acres-NR
7Ray Roberts LakeCooke29,350 acres-D
8Texas Industries LakeNavarro28,298 acres-NR
9Lake Fork ReservoirWood27,690 acres-NR
10Whitney LakeHill23,560 acres-D
11Twin Buttes ReservoirTom Green23,508 acres-NR
12Lewisville LakeDenton23,280 acres-D
13Lake BuchananBurnet21,983 acres-NR
14Lavon LakeCollin21,400 acres-F
15Choke Canyon ReservoirLive Oak19,889 acres-NR
16Lake O the Pines Mid LakeMarion18,700 acres-F
17Lake Corpus ChristiLive Oak18,044 acres-NR
18Lake TravisTravis18,003 acres-NR
19Lake KempBaylor16,540 acres-NR
20Lake MeredithHutchinson16,513 acres-A
21Bois D'Arc LakeFannin16,500 acres-B
22Lake MeredithMoore16,311 acres-NR
23Hubbard Creek ReservoirStephens14,922 acres-B
24B A Steinhagen ReservoirJasper14,700 acres-C
25Lake CorsicanaNavarro14,338 acres-NR
26Lake ArrowheadClay13,782 acres-NR
27Lake LimestoneLeon12,553 acres-NR
28O. H. Ivie ReservoirColeman12,283 acres-NR
29Monticello ReservoirCamp10,608 acres-NR
30Lake BridgeportWise10,563 acres-NR
31Lake TexanaJackson9,325 acres-NR
32Belton LakeBell9,083 acres-NR
33Eagle Mountain LakeTarrant8,613 acres-NR
34Canyon LakeComal8,308 acres-NR
35Lake J B ThomasScurry7,820 acres-NR
36Lake GranburyHood7,522 acres-NR
37Grapevine LakeTarrant7,380 acres-D
38Red Bluff ReservoirReeves7,337 acres-D
39Lake BrownwoodBrown7,300 acres-D
40Waco LakeMcLennan7,270 acres-NR
41Cooling Water ReservoirMatagorda6,958 acres-NR
42Joe Pool LakeDallas6,495 acres-NR
43Stillhouse Hollow LakeBell6,358 acres-NR
44Green LakeCalhoun6,050 acres-NR
45Lake KickapooArcher6,026 acres-NR
46Pat Mayse ReservoirLamar5,993 acres-C
47Lake Lyndon B JohnsonLlano5,941 acres-NR
48O C Fisher ReservoirTom Green5,400 acres-NR
49Medina LakeBandera5,343 acres-NR
50Navarro Mills LakeNavarro5,070 acres-F

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Frequently Asked Questions

What is the largest lake in Texas?

Sam Rayburn Reservoir, at 114,500 acres, in Jasper County (dam site); reservoir also spans Angelina, Nacogdoches, Sabine, San Augustine and Tyler counties County. Toledo Bend is the largest body of water in Texas overall, but TPWD describes it as 'straddling the Texas-Louisiana state line' — roughly half its surface is in Louisiana, so Sam Rayburn is the largest lake entirely inside Texas. Source: Texas Parks and Wildlife Department (TPWD), 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 Texas's largest lakes natural or reservoirs?

Of the top 50 Texas lakes by area, 24 sit on a dammed river (reservoirs) and 26 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 Texas lake in this ranking?

Across the top 50 Texas lakes by surface area, the median is 13,782 acres (Lake Arrowhead). This list is biased toward the biggest waters; the typical Texas lake is far smaller.

Where to stay near Texas's largest lakes

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