Where is Williamstown Lake?

Williamstown Lake is a lake in Grant County, Kentucky. Its water-quality measurements are published by Kentucky DOW and shown on this page as reported.

How deep is Williamstown Lake?

Williamstown Lake has a maximum depth of 70 feet and an average depth of 21 feet. The lake covers 339 acres.

Are there boat ramps on Williamstown Lake?

Williamstown Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Old Williamstown Swimming Hole, Williamstown Marina. Public access is listed as yes.

Can I fish at Williamstown Lake?

Williamstown Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Kentucky's fish and wildlife agency, so check its current regulations before you go.

Williamstown Lake

Grant County, Kentucky339 acresView map Directions

No nutrient or algae sampling on record from Kentucky DOW for this lake.

Max depth

70 ft

Bathymetric survey

Area

339 acres

Surface area

Shoreline

17.3 mi

Measured length

70 ft max depth
Public access

See the measurements Directions Where to stay

Williamstown Lake in Grant County, Kentucky has water-quality measurements published by Kentucky DOW, shown here as reported. Maximum depth: 70 ft. Surface area: 339 acres.

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Williamstown Lake is a 339-acre lake in Grant County, Kentucky with a maximum depth of 70 feet (21-foot average). Limited fish-species data available. Public access is available with 2 public boat landings.

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

What Williamstown Lake is good for

From access and monitoring records, not editorial picks.

Boat launch2 documented ramps
Deep water70 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 Williamstown Lake is safe to swim in today is a call for the Kentucky Division of Water and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Williamstown Lake

These are the measurements Kentucky DOW publishes for Williamstown Lake, 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 Williamstown Lake

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

Lake Details

Max depth

70 ft

Average depth

21 ft

Surface area

339 acres

Shoreline

17.3 mi

Public access

Yes

Listed by Kentucky DOW

Recreation & Access

Boat Landings

Yes

Public Access

Old Williamstown Swimming HolePublic
Williamstown MarinaPublic

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

Stays via Stay22

Stays near Williamstown Lake

Compare lakeside cabins, hotels, and vacation rentals near Williamstown Lake in Grant County, Kentucky — 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.

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Fishing Williamstown Lake

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

Nearby Lakes in Grant County

Williamstown LakeEutrophic0.1 miView →Boltz LakeEutrophic5.2 miView →Corinth LakeEutrophic12 miView →Bullock Pen LakeEutrophic10.7 miView →Arrowhead Lake12.3 miView →Kincaid LakeEutrophic14.1 miView →

Frequently asked questions about Williamstown Lake

Where is Williamstown Lake?: Williamstown Lake is a lake in Grant County, Kentucky. Its water-quality measurements are published by Kentucky DOW and shown on this page as reported.
What is the water quality of Williamstown Lake?: Williamstown Lake in Grant County, Kentucky has water-quality measurements published by Kentucky DOW, shown here as reported. Maximum depth: 70 ft. Surface area: 339 acres.
Is Williamstown Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Williamstown Lake?: Williamstown Lake has a maximum depth of 70 feet and an average depth of 21 feet. The lake covers 339 acres.
Are there boat ramps on Williamstown Lake?: Williamstown Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Old Williamstown Swimming Hole, Williamstown Marina. Public access is listed as yes.
Can I fish at Williamstown Lake?: Williamstown Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Kentucky's fish and wildlife agency, so check its current regulations before you go.