Wewoka Lake
Seminole County, Oklahoma371 acresView mapDirections
Oklahoma DEQ publishes the water-quality measurements for Wewoka Lake. Here is what has been measured.
- Eutrophic
- 41 ft max depth
- Limited data
Wewoka Lake in Seminole County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 2.5 ft visibility. Phosphorus: 55 µg/L. Surface area: 371 acres.
Wewoka Lake is a 371-acre productive, nutrient-rich eutrophic lake in Seminole County, Oklahoma with an estimated average depth of about 41 feet. Overall water quality is improving over recent sampling years. Compared to the 3 other monitored lakes in Seminole County, Wewoka Lake ranks #4 for water quality.
Source: EPA Water Quality Portal sampling records, ODEQ, last sampled 2023-10-17. Methodology: how these readings are compared.
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Wewoka 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 Wewoka Lake
These are the measurements Oklahoma DEQ publishes for Wewoka 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 2.5 ft of visibility. Phosphorus 55 µg/L. TSI 63.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 2.5ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 55µg/L | Poor GoodFairPoor |
| 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. | 63 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Wewoka Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~41 ft est.
Surface area
371 acres
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Oklahoma has not published bathymetry for Wewoka Lake.
Lake Size & Watershed
Watershed (drainage) area
17 sq mi
HydroLAKES / HydroSHEDS
Shoreline
5.9 mi
HydroLAKES / HydroSHEDS
Elevation
850 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.
Stays via Stay22
Stays near Wewoka Lake
Compare lakeside cabins, hotels, and vacation rentals near Wewoka Lake in Seminole 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. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around Wewoka Lake are listed below.
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Fishing Wewoka Lake
Water quality readings over time
3 seasons of samples on record (2013–2023). Calling a direction takes at least 4 years of the same measurement.
Water clarity
Stable2 years
Phosphorus
Improving-8.93 µg/L/yr3 years
Reservoir Info (USACE NID)
Wewoka Lake is a man-made reservoir impounded by the Wewoka (completed 1925), built primarily for water supply on the Coon Creek; earth-type dam, 38 ft tall and 1,050 ft long.
- Surface area
- 371 ac
- Normal storage
- 3,301 ac-ft
- Max storage
- 9,070 ac-ft
- Drainage area
- 16.3 sq mi
- Hazard class
- High
- Owner
- City of Wewoka
Source: USACE National Inventory of Dams, NID ID OK10487 · Operator website
Nearby Lakes in Seminole County
Frequently asked questions about Wewoka Lake
Where is Wewoka Lake?
- Wewoka Lake is a lake in Seminole County, Oklahoma. Its water-quality measurements are published by Oklahoma DEQ and shown on this page as reported.
What is the water quality of Wewoka Lake?
- Wewoka Lake in Seminole County, Oklahoma has water-quality measurements published by Oklahoma DEQ, shown here as reported. Water clarity: 2.5 ft visibility. Phosphorus: 55 µg/L. Surface area: 371 acres.
Is Wewoka Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Wewoka Lake?
- No published bathymetric survey covers Wewoka Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 41 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 371 acres.
Explore Wewoka Lake across LakeQuality
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Other Lakes in Oklahoma
Eutrophic Lakes in Oklahoma
Where this data comes from
56 measurements from 4 monitoring stations, 2012–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- OWRB Lakes Monitoring
OKWRB-LAKES_WQX29 samples · 2019–2023 - The Seminole Nation of Oklahoma (Tribal)
SNEPO_WQX27 samples · 2012–2016
Analytical methods
- OWRB Lakes Field Data Collection
- Determination of Turbidity
Monitoring station identifiers (4)
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)