Ninth Crow Wing Lake
Ninth Crow Wing Lake in Hubbard County, Minnesota has a water quality grade of A (Excellent). Water clarity: 10.2 ft visibility. Phosphorus: 15.5 µg/L. Chlorophyll-a (algae): 5.8 µg/L. Maximum depth: 65 ft. Surface area: 232.4 acres.
- Clarity
- 10.2 ft
- Typical in August
- 59°F
- Max depth
- 65 ft
- Area
- 232 acres
- Type
- Mesotrophic
- Trend
- ↓ Declining
- Public access
- Yes
Next lake in Hubbard County
Ninth Crow Wing Lake is a 232-acre mesotrophic lake in Hubbard County, Minnesota with a maximum depth of 65 feet (17-foot average). Water quality is graded A based on 2 sampling years through 2025. Overall water quality is declining over recent sampling years. The lake supports 15 documented fish species including black bullhead, black crappie, and bluegill. Public access is available with 1 public boat landing. Compared to the 67 other monitored lakes in Hubbard County, Ninth Crow Wing Lake ranks #22 for water quality.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2025-09-22. Grade methodology: LakeGrade methodology.
Watch Ninth Crow Wing Lake water quality
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Swimming Safety
Grade onlyLow algae
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.
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A (Excellent)
Good clarity, visible to about 10.2 ft. Phosphorus level: 15.5 µg/L. Chlorophyll-a: 5.8 µg/L. Trophic State Index: 45.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 10.2 ft | Not graded |
| Phosphorus | 15.5 µg/L | Good |
| Chlorophyll-a (Algae) | 5.8 µg/L | Good |
| Trophic State Index (TSI) | 45 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Ninth Crow Wing Lake
Compare lakeside cabins, hotels, and vacation rentals near Ninth Crow Wing Lake in Hubbard County, Minnesota — 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.
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Water Temperature
Ninth Crow Wing Lake typically sits around 59°F at the surface in August. Summer average is about 64°F. Usually warmest in Jun (about 69°F) and coldest in May (about 56°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 93 field readings (2011–2025) via the EPA Water Quality Portal. See the full Ninth Crow Wing Lake water temperature breakdown →
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 65 ft |
| Average Depth | 17 ft |
| Surface Area | 232 acres |
| Shoreline Length | 3.7 mi |
| Littoral Zone | 41% |
| Public Access | Yes |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Recreation & Access
- 8th Crow Wing LakePublic
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Ninth Crow Wing Lake
DNR Fisheries Survey Summary
12 surveys on file from MN DNR Fisheries. Most recent: 2023-08-28 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Bluegill | 26.56 | 0.14 lb |
| Largemouth Bass | 15.83 | 0.92 lb |
| Yellow Perch | 9.91 | 0.11 lb |
| Bluntnose Minnow | 9.38 | — |
| Pumpkinseed | 8.68 | 0.16 lb |
| MTS | 8.48 | — |
CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE = more abundant in standardized sampling.
Length Distributions
Number of fish caught at each inch class in the most recent survey that recorded lengths. Red dashed line marks an approximate trophy threshold for that species.
Bluegill
Largemouth Bass
Yellow Perch
Pumpkinseed
From the 2023-08-28 survey
Ninth Crow Wing is located four miles east of Nevis in southeastern Hubbard County. Ninth Crow Wing is part of a larger chain of lakes running from Eleventh Crow Wing Lake at the headwaters, down to First Crow Wing Lake. Ninth Crow Wing has a surface area of 232 acres and a maximum depth of 65 feet. There is no public…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Ninth Crow Wing Lake. 2 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — Ninth Crow WingFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Ninth Crow Wing (1311)Aquatic Plant Report · MN DNR LakeFinder
Water Quality Trend: ↓ Declining
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.429 m/yr | 6 |
| Phosphorus | ↑ Improving | -0.89 µg/L/yr | 6 |
| Chlorophyll-a | ↓ Declining | +0.15 µg/L/yr | 6 |
EPA Impairment Status
Ninth Crow Wing Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MN29-0072-00 · Official waterbody report · Matched by proximity (2.17 km)
County Ranking
Ranked #22 of 68 lakes in Hubbard County
Nearby Lakes in Hubbard County
Frequently asked questions about Ninth Crow Wing Lake
What is the water quality grade for Ninth Crow Wing Lake?
- Ninth Crow Wing Lake in Hubbard County, Minnesota has a water quality grade of A (Excellent). Water clarity: 10.2 ft visibility. Phosphorus: 15.5 µg/L. Chlorophyll-a (algae): 5.8 µg/L. Maximum depth: 65 ft. Surface area: 232.4 acres.
Is Ninth Crow Wing Lake safe to swim in?
- Excellent for swimming, crystal clear water with minimal algae. Ninth Crow Wing Lake has a water quality grade of A (Excellent). Algae concentration (chlorophyll-a) is 5.8 µg/L. Always check local health department advisories before swimming.
What is the water temperature of Ninth Crow Wing Lake?
- Ninth Crow Wing Lake typically sits around 59°F at the surface in August, from 93 EPA Water Quality Portal field readings (2011–2025). That is a typical value for the month, not a live reading.
How deep is Ninth Crow Wing Lake?
- Ninth Crow Wing Lake has a maximum depth of 65 feet and an average depth of 17 feet. The lake covers 232.4 acres.
What fish are in Ninth Crow Wing Lake?
- Fish species found in Ninth Crow Wing Lake include black bullhead, black crappie, bluegill, bowfin (dogfish), green sunfish, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, rock bass, tullibee (cisco), walleye, white sucker, yellow bullhead, yellow perch. Ninth Crow Wing Lake is located in Hubbard County, Minnesota.
Are there boat ramps on Ninth Crow Wing Lake?
- Ninth Crow Wing Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include 8th Crow Wing Lake. Public access is listed as yes.
Explore Ninth Crow Wing Lake across LakeGrade
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Where this data comes from
103 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Minnesota Pollution Control Agency - Ambient Surface Water
MNPCA103 samples · 2020–2025
Analytical methods
- Field measurement/observation, generic method
- Phosphorus by Two Reagent Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
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
Impairment status from EPA ATTAINS 303(d) database
Lake size & watershed from HydroLAKES (HydroSHEDS)
Lake details from Minnesota DNR LakeFinder
Named boat-access points from the USGS National Boat Ramps inventory