Flag Lake is a lake in Henderson County, Texas. Its water-quality measurements are published by TCEQ and shown on this page as reported.

Flag Lake

Henderson County, Texas101 acresView map Directions

No nutrient or algae sampling on record from TCEQ for this lake.

Area

101 acres

Surface area

Shoreline

3.4 mi

Measured length

See the measurements Directions Where to stay

Flag Lake in Henderson County, Texas has water-quality measurements published by TCEQ, shown here as reported. Surface area: 101 acres.

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Flag Lake is a 101-acre lake in Henderson County, Texas.

Source: EPA Water Quality Portal sampling records, TCEQ. Methodology: how these readings are compared.

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Flag Lake is safe to swim in today is a call for the Texas Commission on Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Flag Lake

These are the measurements TCEQ publishes for Flag Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data. TSI undefined.

Ask about Flag Lake

Answers come straight from the public measurements and survey records on this page.

Lake Details

Surface area

101 acres

Shoreline

3.4 mi

No bathymetric survey has been published for Flag Lake, so its depth is not documented here.

Stays via Stay22

Stays near Flag Lake

Compare lakeside cabins, hotels, and vacation rentals near Flag Lake in Henderson County, Texas — 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 Flag Lake

Prices for Oct 16–18, 4 adults. Change dates on the map below.

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Follow Flag Lake’s readings

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Fishing Flag Lake

→ Flag Lake fishing regulations (limits, seasons, special rules)

Nearby Lakes in Henderson County

Cedar Creek Reservoir3.7 miView →Mabank City Lake9.2 miView →City Lake—View →Trinidad Lake—View →Gallimo Lake—View →Purtis Creek Lake3 ft clear · Eutrophic—View →

Frequently asked questions about Flag Lake

Where is Flag Lake?: Flag Lake is a lake in Henderson County, Texas. Its water-quality measurements are published by TCEQ and shown on this page as reported.
What is the water quality of Flag Lake?: Flag Lake in Henderson County, Texas has water-quality measurements published by TCEQ, shown here as reported. Surface area: 101 acres.
Is Flag Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.