Where is Crescent Lake?

Crescent Lake is a lake in Carroll County, New Hampshire. Its water-quality measurements are published by NHDES and shown on this page as reported.

How deep is Crescent Lake?

Crescent Lake has a maximum depth of 20 feet and an average depth of 12.5 feet. The lake covers 147 acres.

Are there boat ramps on Crescent Lake?

Crescent Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Mast Landing. Public access is listed as yes.

Can I fish at Crescent Lake?

Crescent Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by New Hampshire's fish and wildlife agency, so check its current regulations before you go.

Crescent Lake

Carroll County, New Hampshire147 acresView map Directions

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

Max depth

20 ft

Bathymetric survey

Area

147 acres

Surface area

Shoreline

4.5 mi

Measured length

Impaired · Mercury
20 ft max depth
Public access

See the measurements Directions Where to stay

Crescent Lake in Carroll County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 20 ft. Surface area: 147 acres.

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Crescent Lake is a 147-acre lake in Carroll County, New Hampshire with a maximum depth of 20 feet (13-foot average). Limited fish-species data available. Public access is available with 1 public boat landing.

Source: EPA Water Quality Portal sampling records, your state environmental agency. Methodology: how these readings are compared.

What Crescent Lake is good for

From access and monitoring records, not editorial picks.

Boat launch1 documented ramp

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Crescent Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury, nuisance exotic species. Check local advisories before you swim.

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

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Water quality measurements for Crescent Lake

These are the measurements NHDES publishes for Crescent 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 Crescent Lake

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

Lake Details

Max depth

20 ft

Average depth

12.5 ft

Surface area

147 acres

Shoreline

4.5 mi

Public access

Yes

Listed by NHDES

The depth above comes from a bathymetric survey of this lake, not from a regional estimate.

Recreation & Access

Boat Landings

Yes

Public Access

Mast LandingPublic

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

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Stays near Crescent Lake

Compare lakeside cabins, hotels, and vacation rentals near Crescent Lake in Carroll County, New Hampshire — 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 Crescent Lake

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Fishing Crescent Lake

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

EPA Impairment Status

Crescent Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).

Causes of impairment

MercuryNuisance exotic species

Designated uses not supporting: Aquatic life, Fish consumption.

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit NHLAK700020101-04 · Official waterbody report

Nearby Lakes in Carroll County

Front Bay0.9 miView →Lake Wentworth1.2 miView →Sargents Pond2.4 miView →Rust Pond18 ft clear2.2 miView →Upper Beech Pond4.1 miView →Mirror Lake4.1 miView →

Frequently asked questions about Crescent Lake

Where is Crescent Lake?: Crescent Lake is a lake in Carroll County, New Hampshire. Its water-quality measurements are published by NHDES and shown on this page as reported.
What is the water quality of Crescent Lake?: Crescent Lake in Carroll County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 20 ft. Surface area: 147 acres.
Is Crescent Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Crescent Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury, nuisance exotic species. Check local advisories before you swim.
How deep is Crescent Lake?: Crescent Lake has a maximum depth of 20 feet and an average depth of 12.5 feet. The lake covers 147 acres.
Are there boat ramps on Crescent Lake?: Crescent Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Mast Landing. Public access is listed as yes.
Can I fish at Crescent Lake?: Crescent Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by New Hampshire's fish and wildlife agency, so check its current regulations before you go.