Lake Monroe
Lake Monroe in Volusia County, Florida has a water quality grade of D (Nutrient-rich). Water clarity: 1.6 ft visibility. Phosphorus: 130 µg/L.
- Clarity
- 1.6 ft
- Type
- Hypereutrophic
Grade D measures nutrients and algae, not whether this is a good place for a cabin trip. Cabins and rentals near Lake Monroe →
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Lake Monroe is a highly nutrient-loaded hypereutrophic lake in Volusia County, Florida. Water quality is graded D based on 1 sampling years through 2023. Compared to the 29 other monitored lakes in Volusia County, Lake Monroe ranks #25 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2023-05-24. Grade methodology: LakeQuality methodology.
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Swimming Safety
Grade onlyLimited data
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.
Nutrients and algae run higher than average — check local advisories before swimming, and skip the water if you see scum
Water Quality Grade: D (Nutrient-rich)
Very murky, less than 1.6 ft of visibility. Phosphorus level: 130 µg/L. Trophic State Index: 72.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.6 ft | Not graded |
| Phosphorus | 130 µg/L | Poor |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 72 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Where to stay near Lake Monroe
Compare lakeside cabins, hotels, and vacation rentals near Lake Monroe in Volusia County, Florida — 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 grade measures nutrients and algae, not lodging — cabins and rentals around Lake Monroe are listed below.
Top-rated places to stay near Lake Monroe
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 Florida’s top lakes →
Recreation & Access
- Riverfront Park Public Boat RampPublic
- Mariner's Cove ParkPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Lake Monroe
EPA Impairment Status
Lake Monroe is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit FL2893D · Official waterbody report
County Ranking
Ranked #25 of 30 lakes in Volusia County
Nearby Lakes in Volusia County
Frequently asked questions about Lake Monroe
Where is Lake Monroe?
- Lake Monroe is a lake in Volusia County, Florida. LakeQuality grades it D for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Lake Monroe?
- Lake Monroe in Volusia County, Florida has a water quality grade of D (Nutrient-rich). Water clarity: 1.6 ft visibility. Phosphorus: 130 µg/L.
Is Lake Monroe safe to swim in?
- Nutrients and algae run higher than average — check local advisories before swimming, and skip the water if you see scum. Lake Monroe has a water quality grade of D (Nutrient-rich). Always check local health department advisories before swimming.
Are there boat ramps on Lake Monroe?
- Lake Monroe has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Riverfront Park Public Boat Ramp, Mariner's Cove Park.
Explore Lake Monroe across LakeQuality
Planning a trip around Canaveral?
Lake Monroe is about 31 miles from Canaveral National Seashore. Crowds there swing hard by season, so the month you pick changes both how busy the park is and what lodging costs.
Best time to visit Canaveral →More Florida Lake Rankings
Other Grade D Lakes in Florida
Hypereutrophic Lakes in Florida
Where this data comes from
10 measurements from 5 monitoring stations, 2020–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples10 samples · 2020–2023
Monitoring station identifiers (5)
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
Impairment status from EPA ATTAINS 303(d) database
Named boat-access points from the USGS National Boat Ramps inventory