Lake Georgetown is a productive, nutrient-rich eutrophic lake in Williamson County, Texas. Water quality is graded B based on 2 sampling years through 2026.
Source: EPA Water Quality Portal sampling records, Texas DNR, last sampled 2026-05-20. Grade methodology: LakeGrade methodology.
Watch Lake Georgetown water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Murky, only visible to about 5.6 ft. Phosphorus level: 20 µg/L. Chlorophyll-a: 9.4 µg/L. Trophic State Index: 51.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5.6 ft | C |
| Phosphorus | 20 µg/L | B |
| Chlorophyll-a (Algae) | 9.4 µg/L | C |
| Trophic State Index (TSI) | 51 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Lake Georgetown
Compare lakeside cabins, hotels, and vacation rentals near Lake Georgetown in Williamson 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 Lake Georgetown
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 trip to Lake Georgetown?
Get lake water-quality report cards plus the best cabin & lodging deals near Lake Georgetown — straight to your inbox. No spam, unsubscribe anytime.
Fishing Lake Georgetown
Location
County Ranking
Ranked #1 of 1 lakes in Williamson County
Nearby Lakes in Williamson County
Explore Lake Georgetown across LakeGrade
More Texas Lake Rankings
Other Grade B Lakes in Texas
Eutrophic Lakes in Texas
More records, surveys & data sources
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2026-05-20
Monitoring stations: 2