Lake Allen
Hillsborough County, FloridaView mapDirections
No nutrient or algae sampling on record from Florida DEP for this lake.
- Impaired · Impaired biota (cause unknown)
- Limited data
Lake Allen in Hillsborough County, Florida has water-quality measurements published by Florida DEP, shown here as reported.
Lake Allen is a lake in Hillsborough County, Florida. Overall water quality is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2024-10-16. Methodology: how these readings are compared.
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Lake Allen is listed impaired under Clean Water Act §303(d) (IR 5) for impaired biota (cause unknown). Check local advisories before you swim.
Whether Lake Allen is safe to swim in today is a call for the Florida Department of Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lake Allen
These are the measurements Florida DEP publishes for Lake Allen, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data.
Ask about Lake Allen
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Lake Allen typically sits around 74°F at the surface in October. Summer average is about 80°F. Usually warmest in Aug (about 84°F) and coldest in Feb (about 61°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (61°F) to its warmest (84°F).
Typical surface water temperature by month, from 52 field readings (2010–2024) via the EPA Water Quality Portal. See the full Lake Allen water temperature breakdown →
Stays via Stay22
Stays near Lake Allen
Compare lakeside cabins, hotels, and vacation rentals near Lake Allen in Hillsborough 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 Allen
Prices for Oct 16–18, 4 adults. Change dates on the map below.
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Fishing Lake Allen
Water Quality Trend: Worsening
Based on 6 years of monitoring (2020–2025).
Water clarity
Worsening6 years
Phosphorus
Stable+0.1 µg/L/yr5 years
EPA Impairment Status
Lake Allen is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life.
Source: EPA ATTAINS assessment unit FL1463H · Official waterbody report
Nearby Lakes in Hillsborough County
Frequently asked questions about Lake Allen
Where is Lake Allen?
- Lake Allen is a lake in Hillsborough County, Florida. Its water-quality measurements are published by Florida DEP and shown on this page as reported.
What is the water quality of Lake Allen?
- Lake Allen in Hillsborough County, Florida has water-quality measurements published by Florida DEP, shown here as reported.
Is Lake Allen safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Lake Allen is listed impaired under Clean Water Act §303(d) (IR 5) for impaired biota (cause unknown). Check local advisories before you swim.
What is the water temperature of Lake Allen?
- Lake Allen typically sits around 74°F at the surface in October, from 52 EPA Water Quality Portal field readings (2010–2024). That is a typical value for the month, not a live reading.
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Where this data comes from
2 measurements from 1 monitoring station, 2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples2 samples · 2024
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
Impairment status from EPA ATTAINS 303(d) database