Lake Zumbro
About Lake Zumbro
Lake Zumbro is a 715-acre reservoir near Oronoco in Olmsted County, Minnesota. It reaches 43 feet at its deepest point, and has roughly 22.8 miles of shoreline. It is the largest lake in Olmsted County in the Minnesota DNR's LakeFinder records. DNR surveys put average water clarity at about 5.3 feet.
Minnesota DNR fisheries surveys list 23 fish species here, including walleye, northern pike, muskellunge, largemouth bass, smallmouth bass, and black crappie. The DNR has stocking records for the lake, so check the stocking report for the most recent species and year classes. The most recent fisheries survey on file dates to 2021.
There is one public boat launch (concrete surface) managed by the Minnesota DNR. The lake is listed as infested with zebra mussel — clean, drain and dry your boat and gear before leaving. Ice typically goes out around March 31, based on 34 years of DNR ice-out records.
Plan Your Visit to Lake Zumbro
- 715 acres, up to 43 feet deep, near Oronoco
- 1 public boat launch (concrete) — managed by the Minnesota DNR
- Game fish on the DNR survey: walleye, northern pike, muskellunge, largemouth bass, smallmouth bass, and black crappie
- Average water clarity around 5.3 feet
- Listed as infested with zebra mussel — clean, drain and dry before you leave
Access & Fees
- Public access
- 1 public boat launch (concrete)
- Launch fee
- Free at DNR accesses
- Managed by
- Minnesota DNR
Conditions
- Surface area
- 715 acres
- Max depth
- 43 ft
- Shoreline
- 22.8 mi
- Water clarity
- 5.3 ft
- Shallows (under 15 ft)
- 263 acres
Rules & Regulations
- A Minnesota fishing license is required for anglers 16 and older
- Drain plugs must be out and all water drained before leaving any access; remove aquatic plants from boats and trailers
- Children under 10 must wear a life jacket on a boat that is underway
Facilities
- 1 public boat launch (concrete)
- Marina: King's Marina
Best For
- Walleye fishing
- Ice fishing
- Ice is never completely safe — check thickness yourself before walking or driving on any lake
Angler's Report
Minnesota DNR LakeFinder- Species on survey
- 23
- Game fish
- 11
- Stocked
- Yes
- Last DNR survey
- 2021
- Special regulations
- No
- Fishing pier
- No
- Ice fishing
- Yes
- Boat launch
- Yes
Fishing data: Minnesota Department of Natural Resources. Regulations change — confirm with the current DNR fishing regulations.
Ice-Out History
- Median ice-out
- March 31
- Years of record
- 34
- Earliest
- February 22, 2017
- Latest
- April 25, 2018
- Most recent
- March 22, 2026
See every lake on the ice-out tracker. Ice-out data: Minnesota DNR State Climatology Office.
Activities
Amenities
Fish Species
Plan your trip to Lake Zumbro
Compare Lake Zumbro against the top-ranked lakes nearby, then map your route.
Nearby Lakes
Shady Lake
34 out of 100 Lake ScoreOlmsted · Oronoco144 acres
3.6 miles away
Silver Lake
40 out of 100 Lake ScoreOlmsted · Rochester50 acres
10.2 miles away
Silver Creek Reservoir
22 out of 100 Lake ScoreOlmsted · Chester107 acres
11.1 miles away
Bear Creek Reservoir
61 out of 100 Lake ScoreOlmsted · Chester104 acres
15.4 miles away
Lake Pepin
76 out of 100 Lake ScoreGoodhue · Lake City12,299 acres
24.2 miles away
Goose Lake
25 out of 100 Lake ScoreGoodhue · Stroms220 acres
31.5 miles away
Frequently Asked Questions
Where is Lake Zumbro?
Lake Zumbro is in Olmsted County, Minnesota, near Oronoco. It covers 715 acres and reaches 43 feet deep.
How big and how deep is Lake Zumbro?
Lake Zumbro covers 715 acres with about 22.8 miles of shoreline. Its maximum depth is 43 feet.
What fish can you catch at Lake Zumbro?
Minnesota DNR surveys list Walleye, Northern Pike, Muskellunge, Largemouth Bass, Smallmouth Bass, Black Crappie, White Crappie, Bluegill, and Yellow Perch and other species. A Minnesota fishing license is required for anyone 16 and older.
Is there a public boat launch on Lake Zumbro?
Yes. Lake Zumbro has 1 public boat launch (concrete), managed by the Minnesota DNR. DNR public water accesses are free to use.
Can you swim at Lake Zumbro?
There is no mapped public swim beach at Lake Zumbro. Minnesota's public waters are open to swimming where you have legal access, but there are no lifeguards or water-quality monitoring away from designated beaches.
Is Lake Zumbro stocked?
Yes. The Minnesota DNR has stocking records for Lake Zumbro; species and numbers vary by year, so see the stocking report on DNR LakeFinder.
When does the ice go out on Lake Zumbro?
The median ice-out date is March 31, from 34 years of Minnesota DNR records. The earliest on record is February 22, 2017 and the latest is April 25, 2018.
Does Lake Zumbro have invasive species?
Yes. The DNR lists Lake Zumbro as infested with zebra mussel. State law requires you to clean off plants, pull the drain plug and drain all water before leaving the access.