Walleye Stocked · 5 plants · last 2018 Best: dawn, dusk, night Mercer Lake fishing
Mercer Lake fishing: not stocked since 2018. It was stocked with Walleye and Muskellunge on a natural lake. Also recorded: Largemouth Bass, Northern Pike, Smallmouth Bass, and Lake Sturgeon. Species guides list dawn, dusk, and night for Walleye, dawn and dusk for Muskellunge, Largemouth Bass, and Smallmouth Bass, and dawn, day, and dusk for Northern Pike.
- Last stocked
- 2018
- Walleye
- Plants on record
- 8
- Since 2010
- Species stocked
- 2 (+4 also recorded)
- Average size
- 6.7 in
- Surface acres
- 183.1
Fish at Mercer Lake
Walleye Stocked · 5 plants · last 2018 Best: dawn, dusk, night 
Muskellunge Stocked · 3 plants · last 2018 Best: dawn, dusk 
Largemouth Bass Confirmed present Best: dawn, dusk Best: dawn, dusk
Largemouth Bass species guide
Northern Pike Confirmed present Best: dawn, day, dusk Best: dawn, day, dusk
Northern Pike species guide
Smallmouth Bass Confirmed present Best: dawn, dusk Best: dawn, dusk
Smallmouth Bass species guide
Lake Sturgeon Confirmed present Mercer Lake is a 181 acre lake located in Iron County. It has a maximum depth of 24 feet. Fish include Musky, Panfish, Largemouth Bass, Smallmouth Bass, Northern Pike, Walleye and Sturgeon. (apps.dnr.wi.gov, accessed September 22, 2026)
Drafted by AI from the cited sources and checked before publishing.
How Mercer Lake is stocked
About 1,873 reported fish per acre, the most of 4 lakes in Iron County with both a fish count and a surface area.
Fish stocked in 2010
7,140
Fish stocked in 2011
120
Fish stocked in 2013
92
Fish stocked in 2015
400
Fish stocked in 2016
250,000
Fish stocked in 2018
85,202
Stocking history
| Date | Species | Quantity | Avg. length | Source |
|---|---|---|---|---|
| 2018 | Walleye | 85,000 | 0.25 in | report |
| 2018 | Muskellunge | 202 | 12.1 in | report |
| 2016 | Walleye | 250,000 | 0.25 in | report |
| 2015 | Walleye | 400 | 7 in | report |
| 2013 | Muskellunge | 92 | 11.6 in | report |
| 2011 | Muskellunge | 120 | 12 in | report |
| 2010 | Walleye | 700 | 9 in | report |
| 2010 | Walleye | 6,440 | 1.7 in | report |
Access and facts
- Water type
- natural lake
- Nearest town
- Mercer, WI
- Facilities
- dock
The Town of Mercer's landing has a concrete ramp with a boarding dock and a separate fishing platform. DNR says the platform, the dock and the routes to them are all ADA accessible. Parking is 1 to 5 stalls and there is no restroom.
Drafted by AI from the cited sources and checked before publishing.
Advisories, closures, regulations and water conditions change. Check the Wisconsin Department of Natural Resources before you go.
Nearest lakes
Common questions
What fish are at Mercer Lake?
Fishing Mercer Lake usually means Walleye: Walleye accounts for 5 of 8 plants on record, ahead of Muskellunge. Walleye was last stocked 2018, averaging 3.6 in. Muskellunge was last stocked 2018, averaging 11.9 in. Largemouth Bass, Northern Pike, Smallmouth Bass, and Lake Sturgeon are recorded here outside the stocking reports.
When is Mercer Lake stocked?
Not stocked since 2018. About 1,873 reported fish per acre, the most of 4 lakes in Iron County with both a fish count and a surface area. No plants recorded in 2012, 2014, and 2017.
How big are the fish stocked at Mercer Lake?
Stocked fish average 6.7 in. Walleye average 3.6 in. Muskellunge average 11.9 in.
How do you get on Mercer Lake?
The nearest town is Mercer, WI. Facilities include dock. The Town of Mercer's landing has a concrete ramp with a boarding dock and a separate fishing platform. DNR says the platform, the dock and the routes to them are all ADA accessible. Parking is 1 to 5 stalls and there is no restroom.
Which lakes near Mercer Lake were stocked more recently?
Long Lake (7.1 mi), Fisher Lake (7.4 mi), Little Trout Lake (12.2 mi), Alder Lake (12.8 mi), and Harris Lake (13.1 mi) were stocked more recently. Long Lake is also stocked with Walleye, Fisher Lake is also stocked with Walleye, Little Trout Lake is also stocked with Walleye, Alder Lake is also stocked with Walleye, and Harris Lake is also stocked with Walleye.