Crowley County Lake Quality
Colorado, 6 lakes — no lake here has enough monitoring data for a grade
Crowley County holds 6 monitored lakes. With a sample that small the county-level summary describes those specific waters, not necessarily every water body in the county. No lake in Crowley County has enough sampling behind it for an A–F grade yet. The 6 monitored lakes below carry whatever clarity, phosphorus, and chlorophyll-a measurements exist.
Most of the county's monitored lakes are shallow, under 50 feet, which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed.
Where to stay near Crowley County
Top-rated places to stay near Crowley County
Prices for Sep 4–6, 4 adults. Change dates on the map below.
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 Crowley County?
Get lake water-quality report cards plus the best cabin & lodging deals near Crowley County — straight to your inbox. No spam, unsubscribe anytime.
Quick Answers for Crowley County
Planning a trip? Check special fishing regulations for Lake Meredith — or check the official Colorado fishing regulations.
All Lakes in Crowley County
6 lakes · 0 graded, 6 not rated0 graded lakes · 6 not rated, hidden
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|---|
| NRLake MeredithCrowley | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRLake HenryCrowley | NR | 1.3 ft | 68 µg/L | 16.3 µg/L | No recent samples | ✓ Public | |
| NRLolita ReservoirCrowley | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRHorse Creek and Black Draw ReservoirCrowley | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRWindmill LakeCrowley | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRCudahy ReservoirCrowley | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded |
NR = not rated: there is not enough recent sampling to support a letter. That is EPA Integrated Reporting Category 3 (insufficient information), not a failing grade. How grading works.
Lake Match
Which lake suits how you actually use one?
Six questions — swimming, fishing, quiet, cabins, drive time — and a shortlist of graded lakes that fit, with the water quality behind each one.
Other Counties in Colorado
See how Crowley County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all United States (49 states), Canada (Ontario and Québec), and 38 other country hubs..
Source: EPA National Aquatic Resource Surveys, 2026.