Lake Cisco
Eastland County, TexasView mapDirections
Clarity, phosphorus, and algae all sit in the cleanest band for this region.
↑ up from B at the last regrade
- Mesotrophic
- #1 of 2 in the county
- 93 ft max depth
- Public access
- Limited data
Lake Cisco in Eastland County, Texas has a water quality grade of A (Excellent). Water clarity: 3.9 ft visibility. Chlorophyll-a (algae): 4.8 µg/L.
- Clarity
- 3.9 ft
- Max depth
- ~93 ft est.
- Type
- Mesotrophic
- Chlorophyll-a
- 4.8 µg/L
- Trend
- ↓ Declining
- Public access
- Yes
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Watch Lake Cisco’s letter
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Lake Cisco is a mesotrophic lake in Eastland County, Texas with an estimated average depth of about 93 feet. Water quality is graded A based on 1 sampling years through 2025. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available with 2 public boat landings. Compared to the 1 other monitored lakes in Eastland County, Lake Cisco ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, TCEQ, last sampled 2025-06-09. Grade methodology: LakeQuality methodology.
What Lake Cisco is good for
From access and monitoring records, not editorial picks.
- Boat launch2 documented ramps
Swimming Safety
Grade onlyLimited data
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.
The A is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Water Quality Grade: A (Excellent)
Murky, only visible to about 3.9 ft. Chlorophyll-a 4.8 µg/L. TSI 52. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.9 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | 4.8 µg/L | Good |
| Trophic State Index (TSI) | 52 | Mesotrophic |
Moderate nutrients, good water quality
Current Conditions
USGS snapshot Sep 7, 2026, 3:30 PM from gauge 08086215 (Lk Cisco nr Cisco, TX). Station page ↗ — a live reading replaces this snapshot when the gauge responds. Missing live data is not an all-clear.
→ Lake Cisco water level: the live USGS gauge reading
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~93 ft est. |
| Public Access | Yes |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Texas has not published bathymetry for Lake Cisco.
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Recreation & Access
- North Shore Lake DrivePublic
- Lake CiscoPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Lake Cisco
Water Quality Trend: ↓ Declining
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.079 m/yr | 6 |
| Chlorophyll-a | ↓ Declining | +0.6 µg/L/yr | 5 |
County Ranking
Ranked #1 of 2 lakes in Eastland County
Nearby Lakes in Eastland County
Frequently asked questions about Lake Cisco
Where is Lake Cisco?
- Lake Cisco is a lake in Eastland County, Texas. LakeQuality grades it A for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Lake Cisco?
- Lake Cisco in Eastland County, Texas has a water quality grade of A (Excellent). Water clarity: 3.9 ft visibility. Chlorophyll-a (algae): 4.8 µg/L.
Is Lake Cisco safe to swim in?
- The A is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
How deep is Lake Cisco?
- No published bathymetric survey covers Lake Cisco, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 93 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
What is the water level at Lake Cisco?
- The USGS snapshot on this page for Lake Cisco is 1503.47 ft of water-surface elevation, recorded Sep 7, 2026, 3:30 PM at gauge 08086215. Current Conditions hydrates a live NWIS reading from that same station when the gauge responds. A missed live fetch is not an all-clear.
Are there boat ramps on Lake Cisco?
- Lake Cisco has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include North Shore Lake Drive, Lake Cisco. Public access is listed as yes.
Explore Lake Cisco across LakeQuality
More Texas Lake Rankings
Other Grade A Lakes in Texas
Mesotrophic Lakes in Texas
Where this data comes from
41 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Texas Commission on Environmental Quality
TCEQMAIN41 samples · 2020–2025
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
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory