Rockingham City Lake
Richmond County, North CarolinaView mapDirections
Clarity, phosphorus, and algae all sit in the cleanest band for this region.
↑ up from B at the last regrade
- Mesotrophic
- #1 of 4 in the county
- 25 ft max depth
- Limited data
Rockingham City Lake in Richmond County, North Carolina has a water quality grade of A (Excellent). Phosphorus: 30 µg/L. Chlorophyll-a (algae): 6.2 µg/L.
- Max depth
- ~25 ft est.
- Type
- Mesotrophic
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Rockingham City Lake is a mesotrophic lake in Richmond County, North Carolina with an estimated average depth of about 25 feet. Water quality is graded A based on 2 sampling years through 2021. Compared to the 3 other monitored lakes in Richmond County, Rockingham City Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, NCDEQ, last sampled 2021-09-23. Grade methodology: LakeQuality methodology.
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)
No clarity data. Phosphorus 30 µg/L. Chlorophyll-a 6.2 µg/L. TSI 51. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 30 µg/L | Good |
| Chlorophyll-a (Algae) | 6.2 µg/L | Good |
| Trophic State Index (TSI) | 51 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~25 ft est. |
| Average Depth | ~12 ft est. |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. North Carolina has not published bathymetry for Rockingham City Lake.
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.
Fishing Rockingham City Lake
County Ranking
Ranked #1 of 4 lakes in Richmond County
Nearby Lakes in Richmond County
Frequently asked questions about Rockingham City Lake
Where is Rockingham City Lake?
- Rockingham City Lake is a lake in Richmond County, North Carolina. LakeQuality grades it A for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Rockingham City Lake?
- Rockingham City Lake in Richmond County, North Carolina has a water quality grade of A (Excellent). Phosphorus: 30 µg/L. Chlorophyll-a (algae): 6.2 µg/L.
Is Rockingham City Lake safe to swim in?
- The A is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
How deep is Rockingham City Lake?
- No published bathymetric survey covers Rockingham City Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 25 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
Explore Rockingham City Lake across LakeQuality
Species activity outlook by water temperature and season
Where to stay at North Carolina's top lakes, each with its grade
Moderate nutrients, good water quality
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Where this data comes from
17 measurements from 1 monitoring station, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- North Carolina Dept of Environmental Quality NCDEQ-DWR WQX
21NC03WQ17 samples · 2021
Analytical methods
- Phosphorus by Colorimetry
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
- 2130 B ~ Nephelometric Method
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)