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

Updated August 2026

Biggest Lake in Virginia: Smith Mountain Lake (20,600 acres)

Smith Mountain Lake is Virginia's largest inland lake per the Virginia Department of Wildlife Resources. Below: 50 Virginia lakes ranked by surface area.

The largest lake in Virginia is Smith Mountain Lake at 20,600 acres , in Bedford and Franklin County, according to the Virginia Department of Wildlife Resources. John H. Kerr Reservoir (Buggs Island Lake) is larger at 48,900 acres. Virginia's largest lake overall, but this USACE reservoir straddles the state line -- Mecklenburg, Charlotte and Halifax counties in Virginia and Granville, Vance and Warren counties in North Carolina.

See our Smith Mountain Lake water-quality readings —

Source: Virginia Department of Wildlife Resources (2026-07-30). The table below ranks the Virginia lakes in our own index by surface area.

50
Lakes with area data
20,400
Largest (acres)
275
Median of top 50
31/50
Reservoirs (vs natural)

Reading Virginia's size profile

Virginia's largest lake by surface area is Dam Lake in Pittsylvania County, spanning 20,400 acres. Most of Virginia'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 page with nutrient readings, clarity, depth, and EPA impairment status. Area figures come from state DNR surveys and the USACE National Inventory of Dams; water-quality readings come from EPA and state monitoring data.

The 50 biggest lakes in Virginia by surface area

#LakeCountySurface areaMax depth
1Dam LakePittsylvania20,400 acres-
2Lake GastonMecklenburg18,987 acres60 ft
3Leesville Lakea-Topb-Middlec-BotPittsylvania3,270 acres-
4Dam LakeFranklin2,880 acres-
5Dam LakeAlleghany2,530 acres-
6John H. Kerr ReservoirHalifax1,890 acres-
7Occoquan ReservoirPrince William1,302 acres-
8Diascund Reservoir Off DamNew Kent1,100 acres-
9Briery Creek LakePrince Edward810 acres-
10Sandy River LakePrince Edward740 acres-
11Hicks LakePrince Edward739 acres-
12Lake ManassasPrince William685 acres49.5 ft
13Carvins Cove ReservoirBotetourt569 acres-
14Emporia LakeEmporia city510 acres-
15Lake of the WoodsOrange492 acres-
16Lake WhitehurstNorfolk city480 acres-
17Lunga ReservoirStafford474 acres-
18Hunting Run Reservior LakeSpotsylvania443 acres-
19Lake Merriweather Goshen Dam SidewallRockbridge438 acres-
20Banister LakestaHalifax400 acres-
21Laurel Bed LakeRussell395 acres-
22Lee Hall ReservoirNewport News city390 acres-
23Lake CohoonSuffolk371 acres-
24Lake MonticelloFluvanna334 acres-
25Bath County Pumped Storage LakeBath298 acres-
26Beaverdam Creek ReservoirLoudoun275 acres-
27Lake CarolineCaroline273 acres-
28Lake LouisaLouisa272 acres-
29Lake TecumsehVirginia Beach268 acres-
30Fawn LakeSpotsylvania265 acres-
31Stumpy LakeVirginia Beach263 acres-
32Lake CulpeperCulpeper250 acres-
33Lake HolidayFrederick239 acres-
34Great Creek ReservoirBrunswick238 acres-
35Smith LakeStafford225 acres-
36Burke LakeFairfax223 acres-
37Martinsville ReservoirHenry206 acres-
38Little Creek ReservoirVirginia Beach200 acres-
39Speights RunSuffolk city197 acres-
40Mill Cr ReservoirAmherst194 acres-
41Northeast ReservoirLouisa187 acres-
42Abel LakeStafford185 acres-
43Sunken Meadow PondSurry173 acres-
44Fairy Stone LakePatrick170 acres-
45Nottoway LakeNottoway170 acres-
46Avery MillpondSurry169 acres-
47Talbott ReservoirPatrick165 acres-
48Motts Run ReservoirSpotsylvania160 acres-
49Brunswick County LakeBrunswick160 acres-
50Big Bethel ReservoirYork160 acres-

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Frequently Asked Questions

What is the largest lake in Virginia?

Smith Mountain Lake, at 20,600 acres, in Bedford and Franklin County. John H. Kerr Reservoir (Buggs Island Lake) is larger at 48,900 acres. Virginia's largest lake overall, but this USACE reservoir straddles the state line -- Mecklenburg, Charlotte and Halifax counties in Virginia and Granville, Vance and Warren counties in North Carolina. Source: Virginia Department of Wildlife Resources, 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 Virginia's largest lakes natural or reservoirs?

Of the top 50 Virginia lakes by area, 31 sit on a dammed river (reservoirs) and 19 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 reading 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 Virginia lake in this ranking?

Across the top 50 Virginia lakes by surface area, the median is 275 acres (Beaverdam Creek Reservoir). This list is biased toward the biggest waters; the typical Virginia lake is far smaller.

Where to stay near Virginia's largest lakes

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