Fremont Lake
About Fremont Lake
Fremont Lake is a 493-acre lake near Zimmerman in Sherburne County, Minnesota. It reaches 8 feet at its deepest point, with an average depth of about 5 feet, and has roughly 5.3 miles of shoreline. It is the largest lake in Sherburne County in the Minnesota DNR's LakeFinder records. DNR surveys put average water clarity at about 3.7 feet, so expect stained or algae-tinted water in summer.
The DNR has no fish survey on file for this lake, so treat any fishing as exploratory.
There is one public boat launch (concrete surface) managed by the city. OpenStreetMap shows a swim beach on or beside the lake. Ice typically goes out around April 2, based on 13 years of DNR ice-out records.
Plan Your Visit to Fremont Lake
- 493 acres, up to 8 feet deep, near Zimmerman
- 1 public boat launch (concrete) — managed by the city
- Average water clarity around 3.7 feet — expect green or stained water by midsummer
- Swim beach on or beside the lake
Access & Fees
- Public access
- 1 public boat launch (concrete)
- Launch fee
- Free at DNR accesses
- Managed by
- city
Conditions
- Surface area
- 493 acres
- Max depth
- 8 ft
- Average depth
- 5 ft
- Shoreline
- 5.3 mi
- Water clarity
- 3.7 ft
- Shallows (under 15 ft)
- 493 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)
- Swim beach
- Picnic area
Best For
- Swimming and beach days
- Low-clarity lakes are prone to summer algae blooms; keep dogs out of green, scummy water
- Ice is never completely safe — check thickness yourself before walking or driving on any lake
Ice-Out History
- Median ice-out
- April 2
- Years of record
- 13
- Earliest
- March 7, 2017
- Latest
- April 30, 2018
- Most recent
- March 26, 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 Fremont Lake
Compare Fremont Lake against the top-ranked lakes nearby, then map your route.
Nearby Lakes
West Hunter Lake
29 out of 100 Lake ScoreSherburne · Crown61 acres
3.1 miles away
Elk Lake
47 out of 100 Lake ScoreSherburne · Zimmerman362 acres
3.3 miles away
Sandy Lake
53 out of 100 Lake ScoreSherburne · Crown64 acres
3.5 miles away
Blue Lake
53 out of 100 Lake ScoreIsanti · Princeton296 acres
4 miles away
Lake Ann
71 out of 100 Lake ScoreSherburne · Orrock183 acres
6 miles away
Birch Lake
50 out of 100 Lake ScoreSherburne · Big Lake160 acres
7.1 miles away
Frequently Asked Questions
Where is Fremont Lake?
Fremont Lake is in Sherburne County, Minnesota, near Zimmerman. It covers 493 acres and reaches 8 feet deep.
How big and how deep is Fremont Lake?
Fremont Lake covers 493 acres with about 5.3 miles of shoreline. Its maximum depth is 8 feet and its average depth is about 5 feet.
What fish can you catch at Fremont Lake?
The DNR has no fish survey on file for Fremont Lake.
Is there a public boat launch on Fremont Lake?
Yes. Fremont Lake has 1 public boat launch (concrete), managed by the city. DNR public water accesses are free to use.
Can you swim at Fremont Lake?
Yes. A swim beach is mapped on or beside the lake. Most Minnesota beaches have no lifeguard, so swim at your own risk and check for beach advisories.
When does the ice go out on Fremont Lake?
The median ice-out date is April 2, from 13 years of Minnesota DNR records. The earliest on record is March 7, 2017 and the latest is April 30, 2018.