---
type: compare
title: "Spring Lake vs Union Lake"
county: "Polk"
url: https://www.minnelakes.org/compare/spring-lake-vs-union-lake
---

# Spring Lake vs Union Lake

Two of the top-scoring lakes in Polk County, Minnesota, side by side.

| | [Spring Lake](https://www.minnelakes.org/lakes/polk-county/spring-lake) | [Union Lake](https://www.minnelakes.org/lakes/polk-county/union-lake) |
| --- | --- | --- |
| Lake Score | 61/100 | 59/100 |
| Nearest town | Lengby | Erskine |
| Surface area | 134 acres | 887 acres |
| Max depth | 35 ft | 83 ft |
| Shoreline | 3.1 mi | 14.6 mi |
| Water clarity | 7.3 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 | No | No |
| Camping | Yes | No |
| Invasive species | None listed | Eurasian watermilfoil, zebra mussel |

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*Source: [MinneLakes.org](https://www.minnelakes.org/compare/spring-lake-vs-union-lake)*