Where is Lake Meridian?

Lake Meridian is a lake in King County, Washington. Its water-quality measurements are published by Washington Ecology and shown on this page as reported.

How deep is Lake Meridian?

Lake Meridian has a maximum depth of 90 feet. The lake covers 150 acres.

Are there boat ramps on Lake Meridian?

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

Can I fish at Lake Meridian?

Lake Meridian 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 Washington's fish and wildlife agency, so check its current regulations before you go.

Lake Meridian

King County, Washington150 acresView map Directions

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

Max depth

90 ft

Bathymetric survey

Area

150 acres

Surface area

Shoreline

2.6 mi

Measured length

Impaired · Dioxins
90 ft max depth
Public access

See the measurements Directions Where to stay

Lake Meridian in King County, Washington has water-quality measurements published by Washington Ecology, shown here as reported. Maximum depth: 90 ft. Surface area: 150 acres.

Loading map…

Lake Meridian is a 150-acre lake in King County, Washington with a maximum depth of 90 feet. Limited fish-species data available. Public access is available with 1 public boat landing.

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

What Lake Meridian is good for

From access and monitoring records, not editorial picks.

Boat launch1 documented ramp
Deep water90 ft surveyed max depth

Swimming conditions

No reading

Bacteria advisory

Nutrient and algae readings are not a swimming clearance. Lake Meridian is listed impaired under Clean Water Act §303(d) (IR 5) for dioxins, mercury, nuisance exotic species, pathogens (E. coli, fecal), pesticides, pCBs. Check local advisories before you swim.

Whether Lake Meridian is safe to swim in today is a call for the Washington State Department of Ecology and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

Get alerts for Lake Meridian →

Water quality measurements for Lake Meridian

These are the measurements Washington Ecology publishes for Lake Meridian, 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 Meridian

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

Lake Details

Max depth

90 ft

Surface area

150 acres

Shoreline

2.6 mi

Public access

Yes

Listed by Washington Ecology

Recreation & Access

Boat Landings

Yes

Public Access

Lake Meridian ParkPublic

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

Stays via Stay22

Stays near Lake Meridian

Compare lakeside cabins, hotels, and vacation rentals near Lake Meridian in King County, Washington — 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 Meridian

Prices for Oct 9–11, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

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

Follow Lake Meridian’s readings

Email me when new measurements post for this lake. Updates stay free.

Or email

Fishing Lake Meridian

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

EPA Impairment Status

Lake Meridian is officially listed as impaired under Clean Water Act §303(d) in the 2018 EPA reporting cycle (IR category 5).

Causes of impairment

DioxinsMercuryNuisance exotic speciesPathogens (E. coli, fecal)PesticidesPCBs

Designated uses not supporting: Drinking water, Aquatic life, Fish consumption, Recreation.

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

Source: EPA ATTAINS assessment unit WA17110013000390_001_001 · Official waterbody report

Nearby Lakes in King County

Lake Youngs4.1 miView →Shadow Lake4.3 miView →Lake Morton4.4 miView →Lake Desire5.8 miView →Pipe Lake4.3 miView →Spring Lake5.9 miView →

Frequently asked questions about Lake Meridian

Where is Lake Meridian?: Lake Meridian is a lake in King County, Washington. Its water-quality measurements are published by Washington Ecology and shown on this page as reported.
What is the water quality of Lake Meridian?: Lake Meridian in King County, Washington has water-quality measurements published by Washington Ecology, shown here as reported. Maximum depth: 90 ft. Surface area: 150 acres.
Is Lake Meridian safe to swim in?: Nutrient and algae readings are not a swimming clearance. Lake Meridian is listed impaired under Clean Water Act §303(d) (IR 5) for dioxins, mercury, nuisance exotic species, pathogens (E. coli, fecal), pesticides, pCBs. Check local advisories before you swim.
How deep is Lake Meridian?: Lake Meridian has a maximum depth of 90 feet. The lake covers 150 acres.
Are there boat ramps on Lake Meridian?: Lake Meridian has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Lake Meridian Park. Public access is listed as yes.
Can I fish at Lake Meridian?: Lake Meridian 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 Washington's fish and wildlife agency, so check its current regulations before you go.