Maple Lake vs Union Lake
Two of the top-scoring lakes in Polk County, Minnesota, side by side.
Maple Lake is the larger of the two at 1,641 acres against 887 for Union Lake. On our rankings, Maple Lake comes out ahead for fishing, Maple Lake comes out ahead for swimming, Maple Lake comes out ahead for boating, Union Lake comes out ahead for paddling, and Maple Lake comes out ahead for ice fishing.
| Measure | Maple Lake | Union Lake |
|---|---|---|
| Lake Score | 67 / 100 | 59 / 100 |
| Nearest town | Mentor | Erskine |
| Surface area | 1,641 acres | 887 acres |
| Max depth | 14 ft | 83 ft |
| Shoreline | 19.8 mi | 14.6 mi |
| Water clarity | 4.7 ft | 6.9 ft |
| Public access | 2 public boat launches (concrete) | 1 public boat launch (asphalt) |
| Fish species | 12 | 12 |
| Game fish | Walleye, Northern Pike, Largemouth Bass, Black Crappie, Bluegill | Walleye, Northern Pike, Largemouth Bass, Black Crappie, Bluegill |
| Stocked | Yes | Yes |
| Special regulations | No | No |
| Swim beach | Yes | No |
| Camping | No | No |
| Invasive species | None listed | Eurasian watermilfoil, zebra mussel |
Which lake is better for…
- FishingMaple Lake
- SwimmingMaple Lake
- BoatingMaple Lake
- PaddlingUnion Lake
- Ice FishingMaple Lake
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Frequently Asked Questions
Which is bigger, Maple Lake or Union Lake?
Maple Lake is bigger at 1,641 acres; Union Lake covers 887 acres.
Which is deeper, Maple Lake or Union Lake?
Union Lake is deeper, with a maximum depth of 83 feet against 14 feet.
Is Maple Lake or Union Lake better for fishing?
Maple Lake ranks higher for fishing in this directory, based on game species, lake size, access and stocking. Maple Lake lists 12 species and Union Lake lists 12.