Crawford Lake
Wright County, MinnesotaMesotrophic
Crawford Lake sits at a C on the grading scale — not impaired, not pristine, with summer measurements that vary year to year. The lake's weakest score is on Secchi depth — the water looks more turbid than its phosphorus number alone would predict.
Mesotrophic conditions dominate at Crawford Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. Crawford Lake reaches 19 ft at its deepest point — typical for Minnesota mid-sized lakes, with seasonal stratification but limited cold-water refuge. Crawford Lake covers 110 acres alongside 1.9 miles of shoreline — a mid-sized water that supports a working fishery without being so large that conditions diverge between basins. Crawford Lake ranks 27 of 64 in Wright County — solidly in the upper half of the local distribution.
Crawford Lake has no invasive species recorded in Minnesota state databases as of 2024, though prevention practices still apply at all access points. Walleye are documented at Crawford Lake, one of 12 fish species on record for the lake. A documented public access point at Crawford Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2024-09-14. Grade methodology: LakeGrade methodology.
Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Murky, only visible to about 5.9 ft. Phosphorus level: 21.5 µg/L. Trophic State Index: 50.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5.9 ft | D |
| Phosphorus | 21.5 µg/L | B |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 50 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 19 ft |
| Average Depth | 3.6 ft |
| Surface Area | 110.43 acres |
| Shoreline Length | 1.9 mi |
| Littoral Zone | 97% |
| Public Access | Yes |
Fish Species
Click a species to see all Minnesota and Wisconsin lakes where it is found.
→ Best fishing times for Crawford Lake (14-day solunar calendar)
→ Is it safe to eat fish from Crawford Lake? (mercury & PFAS guide)
→ Crawford Lake fishing regulations (limits, seasons, special rules)
Water Quality Trend: ↑ Improving
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.9 m/yr | 2 |
| Phosphorus | ↑ Improving | -0.5 µg/L/yr | 2 |
Location
County Ranking
Ranked #27 of 64 lakes in Wright County
Nearby Lakes in Wright County
More Minnesota Lake Rankings
State Parks Near Crawford Lake
Other Grade C Lakes in Minnesota
Mesotrophic Lakes in Minnesota
DNR Fisheries Survey Summary
8 surveys on file from MN DNR Fisheries. Most recent: 2021-07-06 (Standard Survey).
Top Species by Catch Rate
| Species | Avg CPUE | Avg Weight |
|---|---|---|
| Largemouth Bass | 57.36 | 0.71 lb |
| Bluegill | 31.51 | 0.1 lb |
| Green Sunfish | 24.56 | 0.09 lb |
| Black Bullhead | 23.70 | 0.36 lb |
| Hybrid Sunfish | 13.22 | 0.12 lb |
| Pumpkinseed | 12.03 | 0.12 lb |
CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE = more abundant in standardized sampling.
Length Distributions
Number of fish caught at each inch class in the most recent survey that recorded lengths. Red dashed line marks an approximate trophy threshold for that species.
Largemouth Bass
Bluegill
Green Sunfish
Black Bullhead
From the 2021-07-06 survey
Crawford Lake is a 109 acre lake located five miles south of the city of Buffalo in Wright County. The lake is shallow (max. depth of 19 feet) with a history of winterkill. The lake was reclaimed using rotenone in 1998, but not all bullheads were killed. An aeration system was purchased and has been used since 2001 to…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Crawford Lake. 3 reports on file.
- —Fisheries Lake Survey — CrawfordFisheries Lake Survey · MN DNR LakeFinder
- —Fish Stocking History — CrawfordFish Stocking History · MN DNR LakeFinder
- —Public Water Access Sites — CrawfordPublic Water Access Sites · MN DNR LakeFinder
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Lake details from Minnesota DNR LakeFinder
Most recent sample: 2024-09-14
Monitoring stations: 1