Skip to main content
LakeQuality

Blackfoot Reservoir

Caribou County, Idaho16,913 acresView mapDirections

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

Area
16,913 acres
Surface area
Shoreline
79 mi
Measured length

Blackfoot Reservoir in Caribou County, Idaho has water-quality measurements published by Idaho DEQ, shown here as reported. Surface area: 16913 acres.

Loading map…

Blackfoot Reservoir is a 16,913-acre lake in Caribou County, Idaho.

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

What Blackfoot Reservoir is good for

From access and monitoring records, not editorial picks.

  • Big water16,913 acres

Swimming conditions

No reading

Not rated

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

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

Get alerts for Blackfoot Reservoir →

Water quality measurements for Blackfoot Reservoir

These are the measurements Idaho DEQ publishes for Blackfoot Reservoir, 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 Blackfoot Reservoir

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

Lake Details

Surface area

16,913 acres

Shoreline

79 mi

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

Stays via Stay22

Stays near Blackfoot Reservoir

Compare lakeside cabins, hotels, and vacation rentals near Blackfoot Reservoir in Caribou County, Idaho — 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 Blackfoot Reservoir

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.

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

Follow Blackfoot Reservoir’s readings

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


Or email

Fishing Blackfoot Reservoir

Nearby Lakes in Caribou County

Frequently asked questions about Blackfoot Reservoir

Where is Blackfoot Reservoir?

Blackfoot Reservoir is a lake in Caribou County, Idaho. Its water-quality measurements are published by Idaho DEQ and shown on this page as reported.

What is the water quality of Blackfoot Reservoir?

Blackfoot Reservoir in Caribou County, Idaho has water-quality measurements published by Idaho DEQ, shown here as reported. Surface area: 16913 acres.

Measurements on this page ↑

Is Blackfoot Reservoir safe to swim in?

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

Swimming on this page ↑

Where this data comes from

Measurements for Blackfoot Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.