Lake Windsor
Benton County, Arkansas220 acresView mapDirections
Arkansas DEQ publishes the water-quality measurements for Lake Windsor. Here is what has been measured.
- 41 ft max depth
- Public access
- Limited data
Lake Windsor in Benton County, Arkansas has water-quality measurements published by Arkansas DEQ, shown here as reported. Phosphorus: 29 µg/L. Chlorophyll-a (algae): 9.1 µg/L. Surface area: 220 acres.
Lake Windsor is a 220-acre lake in Benton County, Arkansas with an estimated average depth of about 41 feet. Phosphorus level is improving over recent sampling years. Limited fish-species data available. Public access is available with 2 public boat landings.
Source: EPA Water Quality Portal sampling records, ADEQ, last sampled 2016-05-24. Methodology: how these readings are compared.
Lake Windsor covers about 220 acres in Benton County. It has 2 public boat landings, so a lakefront rental is not the only way to get a boat on the water. For a place on the water, look through cabin and lake-house rentals near Lake Windsor on Vrbo. For a hotel or motel room, Booking.com and Expedia both search around the lake.
What Lake Windsor is good for
From access and monitoring records, not editorial picks.
- Boat launch2 documented ramps
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Lake Windsor is safe to swim in today is a call for the Arkansas Division of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lake Windsor
These are the measurements Arkansas DEQ publishes for Lake Windsor, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 29 µg/L. Chlorophyll-a 9.1 µg/L. TSI 52.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 29µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 9.1µg/L | Measured, not scored 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. | 52 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Lake Windsor
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~41 ft est.
Surface area
220 acres
Public access
Yes
Listed by Arkansas DEQ
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Arkansas has not published bathymetry for Lake Windsor.
Lake Size & Watershed
Watershed (drainage) area
14 sq mi
HydroLAKES / HydroSHEDS
Shoreline
4.6 mi
HydroLAKES / HydroSHEDS
Elevation
1,093 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
- Lake WindsorPublic
- LondonPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Lake Windsor
Compare lakeside cabins, hotels, and vacation rentals near Lake Windsor in Benton County, Arkansas — 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 Lake Windsor
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Fishing Lake Windsor
Water Quality Trend: Stable
Based on 4 years of monitoring (2012–2015).
Phosphorus
Improving-4 µg/L/yr4 years
Chlorophyll-a
Worsening+0.31 µg/L/yr4 years
Reservoir Info (USACE NID)
Lake Windsor is a man-made reservoir impounded by the Lake Windsor Dam (completed 1974), built primarily for recreation on the Tanyard Creek; earth-type dam, 95 ft tall and 1,228 ft long.
- Surface area
- 220 ac
- Normal storage
- 5,500 ac-ft
- Max storage
- 9,400 ac-ft
- Drainage area
- 11.3 sq mi
- Hazard class
- Significant
- Owner
- Bella Vista Village Property Owners Association
Source: USACE National Inventory of Dams, NID ID AR00265 · Operator website
Nearby Lakes in Benton County
Frequently asked questions about Lake Windsor
Where is Lake Windsor?
- Lake Windsor is a lake in Benton County, Arkansas. Its water-quality measurements are published by Arkansas DEQ and shown on this page as reported.
What is the water quality of Lake Windsor?
- Lake Windsor in Benton County, Arkansas has water-quality measurements published by Arkansas DEQ, shown here as reported. Phosphorus: 29 µg/L. Chlorophyll-a (algae): 9.1 µg/L. Surface area: 220 acres.
Is Lake Windsor safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Lake Windsor?
- No published bathymetric survey covers Lake Windsor, 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 220 acres.
Are there boat ramps on Lake Windsor?
- Lake Windsor has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Lake Windsor, London. Public access is listed as yes.
Can I fish at Lake Windsor?
- Lake Windsor has 2 documented boat landings in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Arkansas's fish and wildlife agency, so check its current regulations before you go.
Explore Lake Windsor across LakeQuality
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Where this data comes from
37 measurements from 1 monitoring station, 2012–2016. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Arkansas Department of Environmental Quality
ARDEQH2O_WQX37 samples · 2012–2016
Analytical methods
- 4500 P J ~ Persulfate Method for Simultaneous Determination of Total Nitrogen and Total Phosphorus
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
Monitoring station identifiers (1)
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