Where is Isabella Lake?

Isabella Lake is a lake in Kern County, California. Its water-quality measurements are published by SWRCB and shown on this page as reported.

Are there boat ramps on Isabella Lake?

Isabella Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Dean's North Fork Marina. Public access is listed as yes.

Can I fish at Isabella Lake?

Isabella 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 California's fish and wildlife agency, so check its current regulations before you go.

Are there campgrounds on Isabella Lake?

Isabella Lake has 10 public campgrounds from USGS The National Map within 5 km, including Tillie Creek #1, Tillie Creek #3, Tillie Creek #4, Tillie Creek#2. This is a location join, not a booking. Cabins and hotels are listed separately; campsite reservations use the official link when the source provides one.

Isabella Lake

Kern County, California2,871 acresView map Directions

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

Area

2,871 acres

Surface area

Impaired · Mercury
Public access
Limited data

See the measurements Directions Where to stay

Isabella Lake in Kern County, California has water-quality measurements published by SWRCB, shown here as reported. Surface area: 2871 acres.

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Isabella Lake is a 2,871-acre lake in Kern County, California. 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 Isabella Lake is good for

From access and monitoring records, not editorial picks.

Boat launch1 documented ramp
Camping10 public campgrounds nearby
Big water2,871 acres

Swimming conditions

No reading

Limited data

Nutrient and algae readings are not a swimming clearance. Isabella Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, oxygen depletion (low DO), pH / acidity. Check local advisories before you swim.

Whether Isabella Lake is safe to swim in today is a call for the California State Water Resources Control Board and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Isabella Lake

These are the measurements SWRCB publishes for Isabella 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.

Ask about Isabella Lake

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

Lake Details

Surface area

2,871 acres

Public access

Yes

Listed by SWRCB

No bathymetric survey has been published for Isabella Lake, so its depth is not documented here.

Recreation & Access

Boat Landings

Yes

Public Access

Campgrounds

Dean's North Fork MarinaPublic

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

Public campgrounds near Isabella Lake

Tillie Creek #11.1 km
Tillie Creek #31.1 km
Tillie Creek #41.1 km
Tillie Creek#21.1 km
Tillie Creek1.3 km
Live Oak Group1.5 km
Live Oak1.6 kmReserve
Live Oak South1.6 kmReserve
Live Oak North1.6 km
Camp 92.1 kmReserve

Nearest public campgrounds in the USGS National Map inventory, within about 3 miles. An empty list means USGS records no campground that close, which is not the same as camping being unavailable. Where the source gives an official reservation link, it is used; the cabin and hotel search does not cover campsites. More camping lakes

Stays via Stay22

Stays near Isabella Lake

Compare lakeside cabins, hotels, and vacation rentals near Isabella Lake in Kern County, California — 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 Isabella Lake

Prices for Oct 16–18, 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.

Follow Isabella Lake’s readings

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Fishing Isabella Lake

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

EPA Impairment Status

Isabella Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).

Causes of impairment

MercuryOxygen depletion (low DO)pH / acidity

Designated uses not supporting: Aquatic life, Fish consumption, Other.

Source: EPA ATTAINS assessment unit CAL5542101020020418145333 · Official waterbody report

Nearby Lakes in Kern County

Lake Ming29.1 miView →Tejon Reservoir Number Two48.6 miView →Lake Woollomes41.1 miView →Lake Webb—View →Castac Lake—View →

Frequently asked questions about Isabella Lake

Where is Isabella Lake?: Isabella Lake is a lake in Kern County, California. Its water-quality measurements are published by SWRCB and shown on this page as reported.
What is the water quality of Isabella Lake?: Isabella Lake in Kern County, California has water-quality measurements published by SWRCB, shown here as reported. Surface area: 2871 acres.
Is Isabella Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Isabella Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, oxygen depletion (low DO), pH / acidity. Check local advisories before you swim.
Are there boat ramps on Isabella Lake?: Isabella Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Dean's North Fork Marina. Public access is listed as yes.
Can I fish at Isabella Lake?: Isabella 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 California's fish and wildlife agency, so check its current regulations before you go.
Are there campgrounds on Isabella Lake?: Isabella Lake has 10 public campgrounds from USGS The National Map within 5 km, including Tillie Creek #1, Tillie Creek #3, Tillie Creek #4, Tillie Creek#2. This is a location join, not a booking. Cabins and hotels are listed separately; campsite reservations use the official link when the source provides one.