Pelican Lake
Oneida County, WisconsinLimited DataEutrophic
On the scoring rubric Pelican Lake grades a D: clarity at 5.1 ft and phosphorus readings still being added keep it in the lower bracket for Oneida County. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.
A TSI in the eutrophic range signals a lake doing what nutrient-loaded waters do — supporting an active algal community at the cost of clear water. The lake bottoms out at 39 ft — a moderate depth that supports a warm-water fishery without the year-round cold refuge a deeper basin provides. With 3,545 acres of surface and partial shoreline records, Pelican Lake is a large water by Wisconsin standards — recreational pressure is spread across a long shoreline. Pelican Lake ranks 112 of 134 in Oneida County — at the lower end of the locally monitored distribution.
Eurasian watermilfoil has been documented at Pelican Lake, requiring shoreline management to keep dense mats from crowding native vegetation. The fishery includes walleye alongside the lake's other 6 documented species — a notable draw for Wisconsin anglers. Public access is available — the lake is on the Wisconsin DNR public-access list. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.
Source: EPA Water Quality Portal sampling records, Wisconsin DNR Surface Water, last sampled 2024-10-03. Grade methodology: LakeGrade methodology.
Watch Pelican Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Murky, only visible to about 5.1 ft. Trophic State Index: 54.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5.1 ft | D |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 54 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 39 ft |
| Surface Area | 3,545 acres |
| Public Access | Yes |
Fish Species
Click a species to see every graded lake where it is documented.
→ Best fishing times for Pelican Lake (14-day solunar calendar)
→ Is it safe to eat fish from Pelican Lake? (mercury & PFAS guide)
→ Pelican Lake fishing regulations (limits, seasons, special rules)
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
Water Quality Trend: ↑ Improving
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +3.5 m/yr | 2 |
Recreation & Access
Location
County Ranking
Ranked #112 of 134 lakes in Oneida County
Cleaner Lakes Within 30 Miles
Pelican Lake holds Grade D. 4 nearby lakes hold higher grades.
Nearby Lakes in Oneida County
More Wisconsin Lake Rankings
Other Grade D Lakes in Wisconsin
Eutrophic Lakes in Wisconsin
Compare Pelican Lake With Nearby Lakes
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. 8 stations on file (most recent sample 2025).
Fish Species (DNR-rated)
DNR Reports & Resources
Wisconsin DNR Fisheries scientists publish multi-year survey reports for Pelican Lake covering fish populations, stocking, water quality, and management. 3 reports on file.
- 2024Pelican Lake comprehensive survey, 2024Comprehensive Survey · WI DNR · 2024 (PDF)
- 2024Pelican Lake spring summary survey, 2024Fisheries Survey · WI DNR · 2024 (PDF)
- 2023Pelican River summer shocking survey, 2023Fisheries Survey · WI DNR · 2023 (PDF)
EPA Impairment Status
Pelican Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit WI10007401 · Official waterbody report
Data Sources
Water quality data from the EPA Water Quality Portal
Impairment status from EPA ATTAINS 303(d) database
Grading methodology based on Metropolitan Council standards
Fish and recreation data from Wisconsin DNR Lakes
Public boat-access points from the USGS National Boat Ramps inventory
Most recent sample: 2024-10-03
Monitoring stations: 4
Where to stay near Pelican Lake
Compare lakeside cabins, hotels, and vacation rentals near Pelican Lake in Oneida County, Wisconsin — live availability and prices for your trip.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.