Lake Earl
Lake Earl in Okaloosa County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 5.2 ft visibility. Phosphorus: 17 µg/L.
- Clarity
- 5.2 ft
- Typical in August
- 90°F
- Public access
- Yes
Next lake in Okaloosa County
Swipe left or right on this bar to open the next or previous lake.
Why Lake Earl has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Lake Earl, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity and phosphorus, but not algae (chlorophyll-a).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by FDEP and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Lake Earl is a lake in Okaloosa County, Florida. Limited fish-species data available. Public access is available with 7 public boat landings.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-07-21. Grade methodology: LakeQuality methodology.
Watch Lake Earl water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Lake Earl
These readings exist but are not enough for an A–F grade — see why.
Murky, only visible to about 5.2 ft. Phosphorus level: 17 µg/L. Trophic State Index: 49.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5.2 ft | Not graded |
| Phosphorus | 17 µg/L | Not graded |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 49 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Lake Earl
Compare lakeside cabins, hotels, and vacation rentals near Lake Earl in Okaloosa 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.
Top-rated places to stay near Lake Earl
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 →
Water Temperature
Lake Earl typically sits around 90°F at the surface in August. Summer average is about 90°F. Usually warmest in Aug (about 90°F) and coldest in Mar (about 69°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 17 field readings (2016–2025) via the EPA Water Quality Portal. See the full Lake Earl water temperature breakdown →
Recreation & Access
- Fort Walton Beach LandingPublic
- Ross Marler ParkPublic
- Liza Jackson ParkPublic
- Sea Way Boat Ramp At Cinco BayouPublic
- Gulf Islands National SeashorePublic
- Walkedge Boat RampPublic
Showing 6 of 7 documented landings from the USGS National Boat Ramps inventory.
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Lake Earl
EPA Impairment Status
Lake Earl is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit FL874A · Official waterbody report
Graded lakes near Lake Earl
Lake Earl has no grade, but these lakes within a short drive do.
Nearby Lakes in Okaloosa County
Frequently asked questions about Lake Earl
Where is Lake Earl?
- Lake Earl is a lake in Okaloosa County, Florida. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
What is the water quality grade for Lake Earl?
- Lake Earl in Okaloosa County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 5.2 ft visibility. Phosphorus: 17 µg/L.
Is Lake Earl safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Lake Earl is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
What is the water temperature of Lake Earl?
- Lake Earl typically sits around 90°F at the surface in August, from 17 EPA Water Quality Portal field readings (2016–2025). That is a typical value for the month, not a live reading.
Are there boat ramps on Lake Earl?
- Lake Earl has 7 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Fort Walton Beach Landing, Ross Marler Park, Liza Jackson Park, Sea Way Boat Ramp At Cinco Bayou, among others. Public access is listed as yes.
Explore Lake Earl across LakeQuality
Planning a trip around Gulf Islands?
Lake Earl is about 39 miles from Gulf Islands 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 Gulf Islands →More Florida Lake Rankings
Other Lakes in Florida
Mesotrophic Lakes in Florida
Where this data comes from
6 measurements from 1 monitoring station, 2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- FL Dept. of Environmental Protection, Northwest District
21FLPNS_WQX6 samples · 2025
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
Impairment status from EPA ATTAINS 303(d) database
Named boat-access points from the USGS National Boat Ramps inventory