---
type: lake
name: "Blue Lake"
county: "Isanti"
nearest_town: "Princeton"
lake_type: "lake"
acres: 296
max_depth_ft: 31
latitude: 45.47781
longitude: -93.49972
lake_score: 53
dnr_lake_id: "30010700"
url: https://www.minnelakes.org/lakes/isanti-county/blue-lake
---

# Blue Lake

Lake in Isanti County, Minnesota, near Princeton

- **Surface Area**: 296 acres
- **Max Depth**: 31 ft
- **Shoreline**: 6.4 miles
- **Water Clarity**: 4.4 ft
- **Lake Type**: lake
- **Public Access**: 2 public boat launches (concrete)
- **Lake Score**: 53/100 (composite of public data, not a visitor rating)

## About

Blue Lake is a 296-acre lake near Princeton in Isanti County, Minnesota. It reaches 31 feet at its deepest point, and has roughly 6.4 miles of shoreline. DNR surveys put average water clarity at about 4.4 feet.

Minnesota DNR fisheries surveys list 13 fish species here, including walleye, northern pike, largemouth bass, black crappie, bluegill, and pumpkinseed. 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 2025.

There are 2 public boat launches (concrete surface) managed by the township.

## Access

- **Public access**: 2 public boat launches (concrete)
- **Managed by**: township
- **Launch fee**: Free at DNR public water accesses

## Fishing

- **Species on DNR survey**: 13
- **Stocked**: Yes
- **Last DNR survey**: 2025
- **Special regulations**: No
- **Ice fishing**: Yes

## Activities

Fishing, Ice Fishing, Boating, Paddling

## Amenities

Boat Ramp

## Fish Species

Walleye, Northern Pike, Largemouth Bass, Black Crappie, Bluegill, Pumpkinseed, Yellow Perch, Black Bullhead, Bowfin, Green Sunfish, Hybrid Sunfish, White Sucker, Yellow Bullhead

## Nearby Lakes

- [Sandy Lake](https://www.minnelakes.org/lakes/sherburne-county/sandy-lake) - 1.1 miles, 64 acres
- [West Hunter Lake](https://www.minnelakes.org/lakes/sherburne-county/west-hunter-lake) - 3.3 miles, 61 acres
- [Fremont Lake](https://www.minnelakes.org/lakes/sherburne-county/fremont-lake) - 4 miles, 493 acres
- [Elk Lake](https://www.minnelakes.org/lakes/sherburne-county/elk-lake) - 6.2 miles, 362 acres
- [Green Lake](https://www.minnelakes.org/lakes/isanti-county/green-lake) - 7.2 miles, 833 acres
- [Long Lake](https://www.minnelakes.org/lakes/isanti-county/long-lake) - 7.5 miles, 387 acres

## Links

- [Directions](https://www.google.com/maps/dir/?api=1&destination=45.47781,-93.49972)
- [Minnesota DNR LakeFinder](https://www.dnr.state.mn.us/lakefind/lake.html?id=30010700)
- [All lakes in Isanti County](https://www.minnelakes.org/lakes/isanti-county)

---
*Source: [MinneLakes.org](https://www.minnelakes.org/lakes/isanti-county/blue-lake)*