Okmulgee Lake
Okmulgee County, Oklahoma668 acresView mapDirections
Oklahoma DEQ publishes the water-quality measurements for Okmulgee Lake. Here is what has been measured.
- 40 ft max depth
- Public access
- Limited data
Okmulgee Lake in Okmulgee County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 3.2 ft visibility. Surface area: 668 acres.
Okmulgee Lake is a 668-acre lake in Okmulgee County, Oklahoma with an estimated average depth of about 40 feet. Overall water quality is improving over recent sampling years. Limited fish-species data available. Public access is available with 3 public boat landings.
Source: EPA Water Quality Portal sampling records, ODEQ, last sampled 2023-10-17. Methodology: how these readings are compared.
What Okmulgee Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch3 documented ramps
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Okmulgee Lake is safe to swim in today is a call for the Oklahoma Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Okmulgee Lake
These are the measurements Oklahoma DEQ publishes for Okmulgee Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 3.2 ft of visibility. TSI 60.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 3.2ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 60 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Okmulgee Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~40 ft est.
Surface area
668 acres
Public access
Yes
Listed by Oklahoma DEQ
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Oklahoma has not published bathymetry for Okmulgee Lake.
Lake Size & Watershed
Watershed (drainage) area
36 sq mi
HydroLAKES / HydroSHEDS
Shoreline
8.6 mi
HydroLAKES / HydroSHEDS
Elevation
705 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Recreation & Access
- Okmulgee ParkPublic
- BlackjackPublic
- Red OakPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Okmulgee Lake
Compare lakeside cabins, hotels, and vacation rentals near Okmulgee Lake in Okmulgee County, Oklahoma — 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 Okmulgee Lake
Prices for Nov 6–8, 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 trip? Cabins and lodging at Okmulgee Lake → · more Oklahoma lake trips
Follow Okmulgee Lake’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Okmulgee Lake
Water quality readings over time
3 seasons of samples on record (2019–2023). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Improving3 years
Reservoir Info (USACE NID)
Okmulgee Lake is a man-made reservoir impounded by the Okmulgee Lake (completed 1928), built primarily for water supply on the Salt Creek; earth-type dam, 68 ft tall and 2,080 ft long.
- Surface area
- 668 ac
- Normal storage
- 14,170 ac-ft
- Max storage
- 25,900 ac-ft
- Drainage area
- 38.49 sq mi
- Hazard class
- High
- Owner
- City of Okmulgee
Source: USACE National Inventory of Dams, NID ID OK01362 · Operator website
Nearby Lakes in Okmulgee County
Frequently asked questions about Okmulgee Lake
Where is Okmulgee Lake?
- Okmulgee Lake is a lake in Okmulgee County, Oklahoma. Its water-quality measurements are published by Oklahoma DEQ and shown on this page as reported.
What is the water quality of Okmulgee Lake?
- Okmulgee Lake in Okmulgee County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 3.2 ft visibility. Surface area: 668 acres.
Is Okmulgee Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Okmulgee Lake?
- No published bathymetric survey covers Okmulgee Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 40 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate. The lake covers 668 acres.
Are there boat ramps on Okmulgee Lake?
- Okmulgee Lake has 3 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Okmulgee Park, Blackjack, Red Oak. Public access is listed as yes.
Can I fish at Okmulgee Lake?
- Okmulgee Lake has 3 documented boat landings in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Oklahoma's fish and wildlife agency, so check its current regulations before you go.
Explore Okmulgee Lake across LakeQuality
More lakes in Oklahoma
Other Lakes in Oklahoma
Eutrophic Lakes in Oklahoma
Where this data comes from
42 measurements from 3 monitoring stations, 2016–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- OWRB Lakes Monitoring
OKWRB-LAKES_WQX42 samples · 2016–2023
Analytical methods
- OWRB Lakes Field Data Collection
- Determination of Turbidity
Monitoring station identifiers (3)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory