Where is Oneida Narrows Reservoir?

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

Are there campgrounds on Oneida Narrows Reservoir?

Oneida Narrows Reservoir has 1 public campground from USGS The National Map within 5 km, including Maple Grove Campground. 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.

Oneida Narrows Reservoir

Franklin County, Idaho430 acresView map Directions

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

Area

430 acres

Surface area

Shoreline

10.3 mi

Measured length

Impaired · Nutrients (phosphorus, nitrogen)

See the measurements Directions Where to stay

Oneida Narrows Reservoir in Franklin County, Idaho has water-quality measurements published by Idaho DEQ, shown here as reported. Surface area: 430 acres.

Loading map…

Oneida Narrows Reservoir is a 430-acre lake in Franklin County, Idaho.

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

What Oneida Narrows Reservoir is good for

From access and monitoring records, not editorial picks.

Camping1 public campground nearby

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Oneida Narrows Reservoir is listed impaired under Clean Water Act §303(d) (IR 4A) for nutrients (phosphorus, nitrogen), turbidity. Check local advisories before you swim.

Whether Oneida Narrows 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 Oneida Narrows Reservoir →

Water quality measurements for Oneida Narrows Reservoir

These are the measurements Idaho DEQ publishes for Oneida Narrows 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 Oneida Narrows Reservoir

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

Lake Details

Surface area

430 acres

Shoreline

10.3 mi

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

Recreation & Access

Campgrounds

Public campgrounds near Oneida Narrows Reservoir

Maple Grove Campground2.1 km

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 Oneida Narrows Reservoir

Compare lakeside cabins, hotels, and vacation rentals near Oneida Narrows Reservoir in Franklin 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 Oneida Narrows 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 Oneida Narrows Reservoir’s readings

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

Or email

Fishing Oneida Narrows Reservoir

→ Oneida Narrows Reservoir fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Oneida Narrows Reservoir is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).

Causes of impairment

Nutrients (phosphorus, nitrogen)Turbidity

Designated uses not supporting: Aquatic life.

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

Source: EPA ATTAINS assessment unit ID16010202BR008_0L · Official waterbody report

Nearby Lakes in Franklin County

Strongarm Reservoir Number One8 miView →Glendale Reservoir12.2 miView →Winder Reservoir11.7 miView →Foster Reservoir13.4 miView →Johnson Reservoir14 miView →Lamont Reservoir—View →

Frequently asked questions about Oneida Narrows Reservoir

Where is Oneida Narrows Reservoir?: Oneida Narrows Reservoir is a lake in Franklin County, Idaho. Its water-quality measurements are published by Idaho DEQ and shown on this page as reported.
What is the water quality of Oneida Narrows Reservoir?: Oneida Narrows Reservoir in Franklin County, Idaho has water-quality measurements published by Idaho DEQ, shown here as reported. Surface area: 430 acres.
Is Oneida Narrows Reservoir safe to swim in?: Nutrient and algae readings are not a swimming clearance. Oneida Narrows Reservoir is listed impaired under Clean Water Act §303(d) (IR 4A) for nutrients (phosphorus, nitrogen), turbidity. Check local advisories before you swim.
Are there campgrounds on Oneida Narrows Reservoir?: Oneida Narrows Reservoir has 1 public campground from USGS The National Map within 5 km, including Maple Grove Campground. 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.