Cow Lake Fish Stocking
Adams County, Washington · 1995–2009 on record
According to Washington fish & wildlife agency, Cow Lake was last stocked May 19, 2009 with Rainbow Trout. Cow Lake has 18 stocking records on file, spanning 1995–2009, with about 164,940 fish stocked over that period.
When Cow Lake is stocked
Cow Lake is typically stocked in spring, most often in May — 10 stocking events in that peak month.
Nearby stocked waters
Other stocked waters near Cow Lake, freshest activity first.
Sprague Lake
10 miAdams County · 8 species · 256 records
Last stocked May 2026
Union Flat Creek
22 miWhitman County · 1 species · 31 records
Last stocked May 2026
Amber Lake
26 miSpokane County · 2 species · 54 records
Last stocked May 2026
Rock Lake
23 miWhitman County · 3 species · 433 records
Last stocked May 2026
Clear Lake
23 miSpokane County · 4 species · 466 records
Last stocked May 2026
Fishtrap Lake
22 miLincoln County · 2 species · 173 records
Last stocked May 2026
By species
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Source |
|---|---|---|---|
| May 19, 2009 | Rainbow Trout | 10,850 | Washington fish & wildlife agency |
| May 19, 2009 | Rainbow Trout | 1,940 | Washington fish & wildlife agency |
| May 19, 2009 | Rainbow Trout | 7,600 | Washington fish & wildlife agency |
| June 13, 2008 | Rainbow Trout | 10,055 | Washington fish & wildlife agency |
| May 14, 2008 | Black Crappie | 100 | Washington fish & wildlife agency |
| May 14, 2008 | Bluegill | 100 | Washington fish & wildlife agency |
| May 13, 2008 | Bluegill | 649 | Washington fish & wildlife agency |
| May 6, 2008 | Bluegill | 8,710 | Washington fish & wildlife agency |
Show 10 more stocking records →
| Date | Species | Number | Source |
|---|---|---|---|
| May 6, 2008 | Largemouth Bass | 3,400 | Washington fish & wildlife agency |
| March 19, 2008 | Rainbow Trout | 3,002 | Washington fish & wildlife agency |
| March 18, 2008 | Rainbow Trout | 3,000 | Washington fish & wildlife agency |
| September 3, 1997 | Rainbow Trout | 30,120 | Washington fish & wildlife agency |
| September 2, 1997 | Channel Catfish | 5,000 | Washington fish & wildlife agency |
| September 17, 1996 | Channel Catfish | 12,350 | Washington fish & wildlife agency |
| September 9, 1996 | Rainbow Trout | 5,632 | Washington fish & wildlife agency |
| September 9, 1996 | Rainbow Trout | 24,388 | Washington fish & wildlife agency |
| May 7, 1996 | Rainbow Trout | 7,567 | Washington fish & wildlife agency |
| May 31, 1995 | Rainbow Trout | 30,477 | Washington fish & wildlife agency |
The reporting agency did not include fish sizes for this water.
Frequently asked
When was Cow Lake last stocked?
According to Washington fish & wildlife agency, Cow Lake was last stocked May 19, 2009 with Rainbow Trout.
What fish species are stocked in Cow Lake?
Cow Lake is stocked with Rainbow Trout, Black Crappie, Bluegill, Largemouth Bass, and Channel Catfish.
What time of year is Cow Lake stocked?
Cow Lake is typically stocked in spring, most often in May.
How often is Cow Lake stocked?
Cow Lake has been stocked about 1 times a year — 18 recorded stockings between 1995 and 2009.
How many fish have been stocked in Cow Lake?
About 164,940 fish have been stocked in Cow Lake across 18 recorded events since 1995, per Washington fish & wildlife agency.