Pittsburg County Lake Quality
Oklahoma, 12 lakes — no lake here has enough monitoring data for a grade
Pittsburg County holds 12 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 Pittsburg County has enough sampling behind it for an A–F grade yet. The 12 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.
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Quick Answers for Pittsburg County
Planning a trip? Check special fishing regulations for Eufaula Lake — or check the official Oklahoma fishing regulations.
All Lakes in Pittsburg County
12 lakes · 0 graded, 12 not rated0 graded lakes · 12 not rated, hidden
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|---|
| NREufaula LakePittsburg | NR | 3 ft | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRTalawanda LakePittsburg | NR | 5.1 ft | No recent samples | No recent samples | No recent samples | Not recorded | |
| NREufaula LakePittsburg | NR | 2.4 ft | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRBrown LakePittsburg | NR | 1.1 ft | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRLake McalesterPittsburg | NR | 0.6 ft | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRFin and Feather LakePittsburg | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRKrebs LakePittsburg | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRDow LakePittsburg | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRHartshorne LakePittsburg | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRPittsburg LakePittsburg | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRPrison LakePittsburg | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRCrowder ReservoirPittsburg | 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.
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Other Counties in Oklahoma
See how Pittsburg 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, Québec, Nova Scotia, British Columbia and Newfoundland and Labrador), and 38 other country hubs..
Source: EPA National Aquatic Resource Surveys, 2026.