Hillsborough-Church Lake
Hillsborough-Church Lake in Hillsborough County, Florida has a water quality grade of B (Good). Water clarity: 7 ft visibility. Phosphorus: 15 µg/L.
- Clarity
- 7 ft
- Typical in August
- 89°F
- Type
- Mesotrophic
- Trend
- ↑ Improving
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Hillsborough-Church Lake is a mesotrophic lake in Hillsborough County, Florida. Water quality is graded B based on 1 sampling years through 2025. Overall water quality is improving over recent sampling years. Compared to the 123 other monitored lakes in Hillsborough County, Hillsborough-Church Lake ranks #46 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-04-29. Grade methodology: LakeQuality methodology.
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Swimming Safety
Grade onlyLow algae
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.
Good for swimming, clear water with low algae levels
Water Quality Grade: B (Good)
Moderate clarity, visible to about 7 ft. Phosphorus level: 15 µg/L. Trophic State Index: 46.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 7 ft | Not graded |
| Phosphorus | 15 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 46 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Hillsborough-Church Lake
Compare lakeside cabins, hotels, and vacation rentals near Hillsborough-Church Lake 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 Hillsborough-Church Lake
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Water Temperature
Hillsborough-Church Lake typically sits around 89°F at the surface in August. Summer average is about 88°F. Usually warmest in Jun (about 89°F) and coldest in Dec (about 55°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 96 field readings (2010–2012) via the EPA Water Quality Portal. See the full Hillsborough-Church Lake water temperature breakdown →
Fishing Hillsborough-Church Lake
Water Quality Trend: ↑ Improving
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | +0.114 m/yr | 6 |
| Phosphorus | ↑ Improving | -0.33 µg/L/yr | 6 |
EPA Impairment Status
Hillsborough-Church Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit FL1493A · Official waterbody report · Matched by proximity (0.03 km)
County Ranking
Ranked #46 of 124 lakes in Hillsborough County
Nearby Lakes in Hillsborough County
Frequently asked questions about Hillsborough-Church Lake
Where is Hillsborough-Church Lake?
- Hillsborough-Church Lake is a lake in Hillsborough County, Florida. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Hillsborough-Church Lake?
- Hillsborough-Church Lake in Hillsborough County, Florida has a water quality grade of B (Good). Water clarity: 7 ft visibility. Phosphorus: 15 µg/L.
Is Hillsborough-Church Lake safe to swim in?
- Good for swimming, clear water with low algae levels. Hillsborough-Church Lake has a water quality grade of B (Good). Always check local health department advisories before swimming.
What is the water temperature of Hillsborough-Church Lake?
- Hillsborough-Church Lake typically sits around 89°F at the surface in August, from 96 EPA Water Quality Portal field readings (2010–2012). That is a typical value for the month, not a live reading.
Explore Hillsborough-Church Lake across LakeQuality
More Florida Lake Rankings
Other Grade B Lakes in Florida
Mesotrophic Lakes in Florida
Where this data comes from
267 measurements from 3 monitoring stations, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- FLORIDA LAKEWATCH
21FLKWAT_WQX267 samples · 2020–2025
Monitoring station identifiers (3)
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