Where is Lake Manassas?

Lake Manassas is a lake in Prince William County, Virginia. Its water-quality measurements are published by Virginia DEQ and shown on this page as reported.

How deep is Lake Manassas?

Lake Manassas has a maximum depth of 49.5 feet. The lake covers 685 acres.

Lake Manassas

Prince William County, Virginia685 acresView map Directions

No nutrient or algae sampling on record from Virginia DEQ for this lake.

Max depth

49.5 ft

Bathymetric survey

Area

685 acres

Surface area

Shoreline

18.9 mi

Measured length

50 ft max depth

See the measurements Directions Where to stay

Lake Manassas in Prince William County, Virginia has water-quality measurements published by Virginia DEQ, shown here as reported. Maximum depth: 49.5 ft. Surface area: 685 acres.

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Lake Manassas is a 685-acre lake in Prince William County, Virginia with a maximum depth of 50 feet.

Source: EPA Water Quality Portal sampling records, Virginia DEQ. Methodology: how these readings are compared.

What Lake Manassas is good for

From access and monitoring records, not editorial picks.

Deep water49.5 ft surveyed max depth

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Lake Manassas is safe to swim in today is a call for the Virginia Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

Get alerts for Lake Manassas →

Water quality measurements for Lake Manassas

These are the measurements Virginia DEQ publishes for Lake Manassas, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. TSI undefined.

Ask about Lake Manassas

Answers come straight from the public measurements and survey records on this page.

Lake Details

Max depth

49.5 ft

Surface area

685 acres

Shoreline

18.9 mi

Stays via Stay22

Stays near Lake Manassas

Compare lakeside cabins, hotels, and vacation rentals near Lake Manassas in Prince William County, Virginia — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.

Top-rated places to stay near Lake Manassas

Prices for Oct 16–18, 4 adults. Change dates on the map below.

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Planning a whole trip? See where to stay at Virginia’s top lakes →

Follow Lake Manassas’s readings

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Fishing Lake Manassas

→ Lake Manassas fishing regulations (limits, seasons, special rules)

Nearby Lakes in Prince William County

Lake Jackson11.8 miView →Occoquan Reservoir—View →Lake Brittle3.2 miView →Airlie Lake8 miView →Warrenton Reservoir8.3 miView →Germantown Lake11.5 miView →

Frequently asked questions about Lake Manassas

Where is Lake Manassas?: Lake Manassas is a lake in Prince William County, Virginia. Its water-quality measurements are published by Virginia DEQ and shown on this page as reported.
What is the water quality of Lake Manassas?: Lake Manassas in Prince William County, Virginia has water-quality measurements published by Virginia DEQ, shown here as reported. Maximum depth: 49.5 ft. Surface area: 685 acres.
Is Lake Manassas safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Lake Manassas?: Lake Manassas has a maximum depth of 49.5 feet. The lake covers 685 acres.