Crown Lake
Izard County, Arkansas645 acresView mapDirections
Nutrients and algae sit mid-range for this region.
↓ down from A at the last regrade
- Mesotrophic
- #2 of 2 in the county
- 47 ft max depth
Crown Lake in Izard County, Arkansas has a water quality grade of C (Fair). Phosphorus: 20 µg/L. Chlorophyll-a (algae): 2.3 µg/L. Surface area: 645 acres.
- Max depth
- ~47 ft est.
- Area
- 645 acres
- Type
- Mesotrophic
- Phosphorus
- 20 µg/L
- Chlorophyll-a
- 2.3 µg/L
- Trend
- → Stable
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Crown Lake is a 645-acre mesotrophic lake in Izard County, Arkansas with an estimated average depth of about 47 feet. Water quality is graded C based on 2 sampling years through 2026. Public access is available with 1 public boat landing. Compared to the 1 other monitored lakes in Izard County, Crown Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, ADEQ, last sampled 2026-02-09. Grade methodology: LakeQuality methodology.
What Crown Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming Safety
Grade onlyModerate
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
The C is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Water Quality Grade: C (Fair)
No clarity data. Phosphorus 20 µg/L. Chlorophyll-a 2.3 µg/L. TSI 43. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 20 µg/L | Not graded |
| Chlorophyll-a (Algae) | 2.3 µg/L | Good |
| Trophic State Index (TSI) | 43 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~47 ft est. |
| Average Depth | ~16 ft est. |
| Surface Area | 645 acres |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Arkansas has not published bathymetry for Crown Lake.
Lake Size & Watershed
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
- Box Hound Marina and ResortSemi-private
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Crown Lake
Water Quality Trend: → Stable
Based on 7 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Phosphorus | → Stable | 0 µg/L/yr | 4 |
| Chlorophyll-a | → Stable | +0.03 µg/L/yr | 7 |
Reservoir Info (USACE NID)
Crown Lake is a man-made reservoir impounded by the Crown Lake Dam (completed 1972), built primarily for recreation on the Bens Creek; earth-type dam, 91 ft tall and 1,125 ft long.
- Surface area
- 645 ac
- Normal storage
- 9,710 ac-ft
- Max storage
- 9,710 ac-ft
- Drainage area
- 13.5 sq mi
- Hazard class
- Significant
- Owner
- Horseshoe Bend MRID
Source: USACE National Inventory of Dams, NID ID AR00232 · Operator website
County Ranking
Ranked #2 of 2 lakes in Izard County
Nearby Lakes in Izard County
Frequently asked questions about Crown Lake
Where is Crown Lake?
- Crown Lake is a lake in Izard County, Arkansas. LakeQuality grades it C for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Crown Lake?
- Crown Lake in Izard County, Arkansas has a water quality grade of C (Fair). Phosphorus: 20 µg/L. Chlorophyll-a (algae): 2.3 µg/L. Surface area: 645 acres.
Is Crown Lake safe to swim in?
- The C is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
How deep is Crown Lake?
- No published bathymetric survey covers Crown Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 47 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 645 acres.
Are there boat ramps on Crown Lake?
- Crown Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Box Hound Marina and Resort.
Explore Crown Lake across LakeQuality
More Arkansas Lake Rankings
Other Grade C Lakes in Arkansas
Mesotrophic Lakes in Arkansas
Where this data comes from
68 measurements from 1 monitoring station, 2012–2026. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Arkansas Department of Environmental Quality
ARDEQH2O_WQX68 samples · 2012–2026
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
- Turbidity by Nephelometry
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated 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