Diamond Lake (Kandiyohi County)
Kandiyohi County, Minnesota - DNR stocking history, depth and survey data
Minnesota · Minnesota Department of Natural Resources (DNR) · DOW 34004400
DNR records show 12 stocking entries at Diamond Lake (Kandiyohi County) since 2016, most recently walleye fry in 2025 (715,890 fish).
- Diamond Lake (Kandiyohi County) has 12 DNR stocking records across 9 years (2016-2025): walleye (12).
- The most-stocked species by count is walleye: 7,215,655 fish on record.
- Maximum depth 27 ft, mean depth 16 ft; surface area 1,610 acres, 635 littoral acres, 9.5 miles of shoreline, per the DNR lake survey.
- Average water clarity (Secchi depth) 7.1 ft.
- Fish species DNR lists here: black bullhead, black crappie, bluegill, bowfin (dogfish), brown bullhead, common carp, green sunfish, hybrid sunfish, largemouth bass, northern pike, pumpkinseed, walleye, and 3 more.
- 2 public accesses on the DNR list.
- Most recent DNR fish survey: (targeted survey).
- Kandiyohi County, nearest town Atwater; DNR lake number (DOW) 34004400.
Depth map
Bathymetric contours from the Minnesota DNR lake survey mapped 6/24/1954 (orig map); depths in feet. Simplified for the web; not for navigation.
Stocking history
| Year | Species | Size | Number | Pounds |
|---|---|---|---|---|
| 2025 | Walleye | fry | 715,890 | 7.0 |
| 2024 | Walleye | fingerlings | 11,436 | 1,624.0 |
| 2023 | Walleye | fry | 1,010,477 | 9.5 |
| 2022 | Walleye | fry | 636,132 | 6.2 |
| 2021 | Walleye | fingerlings | 4,588 | 935.0 |
| 2021 | Walleye | fry | 761,438 | 7.4 |
| 2019 | Walleye | fry | 751,366 | 6.7 |
| 2018 | Walleye | fry | 930,788 | 9.1 |
| 2017 | Walleye | yearlings | 20,784 | 1,392.0 |
| 2017 | Walleye | adults | 207 | 84.0 |
| 2017 | Walleye | fry | 1,081,936 | 11.9 |
| 2016 | Walleye | fry | 1,290,613 | 13.0 |
Field note · Minnesota stocks by year, not by truck day: walleye fry go in within weeks of ice-out, fingerlings and yearlings mostly in fall, and stream trout in spring and fall. A row here means the fish went in during that year; DNR adds the year's rows after the fact, so the current year can look empty until winter.
Public accesses
| Type | Owner | Where |
|---|---|---|
| concrete ramp | county | West side of lake- east side of CR#4 within Kandiyohi County Park#3. |
| concrete ramp | county | East shore area. - Limited parking. |
DNR fish survey, 2025
| Species | Gear | Catch per net | Total catch | Avg lb |
|---|---|---|---|---|
| Walleye | Fall electrofishing | 7.50 | 15 | 0.14 |
Catch per net (CPUE) is the DNR survey's count per gill net or trap net set; higher means more of that species were sampled, not a fishing forecast. Top species per gear shown; where we have no verified common name for a DNR code, the code itself is shown.
A targeted fall night electrofishing survey was conducted for young of year "YOY" (fingerling sized) Walleye on Diamond Lake during October 15, 2025. A targeted survey is generally used for sampling a specific kind of fish or time of year (i.e., spawning season, fall season, etc.) unlike a standard survey which samples a wider range of fish species during the summer months using standard methodology (i.e., standard time of year, set sampling stations, taking water clarity readings and oxygen/temperature profiles, etc.) and gears (i.e., lake survey gillnets, trapnets and possibly spring electrofishing for Largemouth Bass). Fall electrofishing surveys prior to 2020 were conducted at three stations for a total of 30 minutes. Six stations were sampled for a total of 120 minutes in 2020-2021 and 2023-2025 surveys. Five stations were sampled for a total of 100 minutes in 2022. The water temperature was 56 F. during the 2025 fall electrofishing survey. Submergent vegetation was moderate to light at all stations in 2025. Windy conditions were present along west stations (EW1, EW5 and EW6). Water clarity was moderate. We observed moderate numbers of adult Walleye, Bluegill, Largemouth Bass, Black Crappie, Brook Silversides and Yellow Perch in the 2025 fall electrofishing survey. We also saw abundant numbers of YOY Black Crappie, YOY Northern Pike, YOY Yellow Perch and YOY Sunfish in the near shore areas. Diamond is a moderately large (1,607 acres), productive, and moderately deep (27 feet maximum) lake with moderate submergent vegetation densities. It is in Kandiyohi County. Zebra Mussels were first documented in Diamond during 2018. Diamond is currently part of a statewide Zebra Mussel/Walleye study lake. Abundant numbers of small Black Crappie, Yellow Perch and shiner species were observed during previous fall electrofishing surveys. Abundant Northern Pike numbers were noted in the 2013 and 2018 summer surveys (9.00+ fish/gillnet), recent ice out trapnets and fall electrofishing surveys. Walleye egg collection resumed in 2014 on Diamond. Approximately, 60-70 quarts of Walleye eggs were collected for statewide and local quotas during 2014 and 2015. Approximately 191 quarts were collected during the early spring of 2016; 90 quarts in 2017; 25 quarts in 2018; 113 quarts in 2019; 78.75 quarts in 2022; 133.5 quarts in 2023; 72.3 quarts in 2024. Walleye egg take operations were not conducted in 2020, 2021 or 2025 on Diamond Lake. Prior to 2012, consistent and excellent Walleye natural reproduction had occurred in Diamond based on fall electrofishing surveys and…
Minnesota DNR survey narrative, .
All Minnesota stockings · every Minnesota lake with a page · state CSV · this lake on DNR LakeFinder
Stocking rows, depths, accesses and survey figures are Minnesota DNR LakeFinder data as of 2026-09-02; contours are the DNR bathymetric survey. Regulations, slot limits and special rules are on the DNR page linked above, not here.
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