Flathead Lake Fish Stocking
Montana · 1924–1997 on record
According to Montana fish & wildlife agency, Flathead Lake was last stocked October 1, 1997 with Kokanee. Flathead Lake has 1,161 stocking records on file, spanning 1924–1997, with about 107,477,002 fish stocked over that period.
When Flathead Lake is stocked
Flathead Lake is typically stocked in summer, most often in June — 210 stocking events in that peak month.
Nearby stocked waters
Other stocked waters near Flathead Lake, freshest activity first.
Lost Lake
6 mi4 species · 96 records
Last stocked May 2026
Bailey Lake
9 mi2 species · 57 records
Last stocked July 2023
Ronan Creek
4 mi1 species · 4 records
Last stocked August 2002
Sullivan Creek
10 mi2 species · 28 records
Last stocked August 1995
Swan River
10 mi3 species · 299 records
Last stocked September 1992
Estes Lake
7 mi2 species · 6 records
Last stocked July 1987
By species
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| October 1, 1997 | Kokanee | 2,347 | 14.2" | Montana fish & wildlife agency |
| September 15, 1997 | Kokanee | 41,951 | 7.3" | Montana fish & wildlife agency |
| September 4, 1997 | Kokanee | 750,389 | 2.8" | Montana fish & wildlife agency |
| May 21, 1997 | Kokanee | 708,798 | 5.5" | Montana fish & wildlife agency |
| August 6, 1996 | Kokanee | 219,627 | 3" | Montana fish & wildlife agency |
| June 26, 1996 | Cutthroat Trout | 2,019 | 4" | Montana fish & wildlife agency |
| May 10, 1996 | Cutthroat Trout | 6,755 | 7.6" | Montana fish & wildlife agency |
| May 8, 1996 | Cutthroat Trout | 6,010 | 8" | Montana fish & wildlife agency |
Show 42 more stocking records →
| Date | Species | Number | Size | Source |
|---|---|---|---|---|
| May 7, 1996 | Cutthroat Trout | 6,469 | 7.7" | Montana fish & wildlife agency |
| April 18, 1996 | Kokanee | 938,629 | 5.2" | Montana fish & wildlife agency |
| June 16, 1995 | Kokanee | 408,578 | 2.7" | Montana fish & wildlife agency |
| June 13, 1995 | Cutthroat Trout | 3,380 | 7.4" | Montana fish & wildlife agency |
| June 12, 1995 | Cutthroat Trout | 5,864 | 7.3" | Montana fish & wildlife agency |
| June 9, 1995 | Cutthroat Trout | 5,280 | 7.6" | Montana fish & wildlife agency |
| June 1, 1995 | Cutthroat Trout | 5,360 | 7.5" | Montana fish & wildlife agency |
| June 1, 1995 | Kokanee | 501,572 | 6" | Montana fish & wildlife agency |
| June 16, 1994 | Cutthroat Trout | 5,942 | 7.5" | Montana fish & wildlife agency |
| June 10, 1994 | Kokanee | 25,316 | 6.5" | Montana fish & wildlife agency |
| June 10, 1994 | Kokanee | 14,984 | 6.5" | Montana fish & wildlife agency |
| June 10, 1994 | Kokanee | 48,678 | 6.5" | Montana fish & wildlife agency |
| June 9, 1994 | Kokanee | 41,221 | 6.5" | Montana fish & wildlife agency |
| June 9, 1994 | Kokanee | 42,053 | 6.5" | Montana fish & wildlife agency |
| June 9, 1994 | Kokanee | 13,372 | 6.5" | Montana fish & wildlife agency |
| June 9, 1994 | Kokanee | 42,154 | 6.5" | Montana fish & wildlife agency |
| June 9, 1994 | Kokanee | 16,313 | 6.5" | Montana fish & wildlife agency |
| June 9, 1994 | Kokanee | 16,480 | 6.5" | Montana fish & wildlife agency |
| June 8, 1994 | Kokanee | 16,136 | 6.5" | Montana fish & wildlife agency |
| June 8, 1994 | Kokanee | 46,570 | 6.5" | Montana fish & wildlife agency |
| June 8, 1994 | Kokanee | 41,450 | 6.5" | Montana fish & wildlife agency |
| June 8, 1994 | Kokanee | 36,995 | 6.5" | Montana fish & wildlife agency |
| June 8, 1994 | Kokanee | 15,046 | 6.5" | Montana fish & wildlife agency |
| June 8, 1994 | Kokanee | 16,164 | 6.5" | Montana fish & wildlife agency |
| June 7, 1994 | Kokanee | 44,635 | 6.7" | Montana fish & wildlife agency |
| June 7, 1994 | Kokanee | 14,240 | 6.7" | Montana fish & wildlife agency |
| June 7, 1994 | Kokanee | 15,172 | 6.7" | Montana fish & wildlife agency |
| June 7, 1994 | Kokanee | 41,819 | 6.7" | Montana fish & wildlife agency |
| June 7, 1994 | Kokanee | 16,187 | 6.7" | Montana fish & wildlife agency |
| June 7, 1994 | Kokanee | 48,224 | 6.7" | Montana fish & wildlife agency |
| June 6, 1994 | Kokanee | 44,503 | 6.7" | Montana fish & wildlife agency |
| June 6, 1994 | Kokanee | 54,028 | 6.4" | Montana fish & wildlife agency |
| June 6, 1994 | Kokanee | 47,922 | 6.7" | Montana fish & wildlife agency |
| June 6, 1994 | Kokanee | 15,770 | 6.4" | Montana fish & wildlife agency |
| June 6, 1994 | Kokanee | 14,490 | 6.7" | Montana fish & wildlife agency |
| June 6, 1994 | Kokanee | 12,252 | 6.7" | Montana fish & wildlife agency |
| April 25, 1994 | Cutthroat Trout | 6,030 | 7" | Montana fish & wildlife agency |
| April 22, 1994 | Cutthroat Trout | 8,030 | 7.1" | Montana fish & wildlife agency |
| June 16, 1993 | Cutthroat Trout | 5,742 | 7.2" | Montana fish & wildlife agency |
| June 15, 1993 | Cutthroat Trout | 6,996 | 7.2" | Montana fish & wildlife agency |
| June 10, 1993 | Cutthroat Trout | 7,290 | 7.3" | Montana fish & wildlife agency |
| June 2, 1993 | Kokanee | 49,029 | 6" | Montana fish & wildlife agency |
Showing 50 of 500 stocking records.
Frequently asked
When was Flathead Lake last stocked?
According to Montana fish & wildlife agency, Flathead Lake was last stocked October 1, 1997 with Kokanee.
What fish species are stocked in Flathead Lake?
Flathead Lake is stocked with Kokanee, Cutthroat Trout, Largemouth Bass, Mountain Whitefish, Coho Salmon, Bass, Trout (unspecified), and Brook Trout.
What time of year is Flathead Lake stocked?
Flathead Lake is typically stocked in summer, most often in June.
How often is Flathead Lake stocked?
Flathead Lake has been stocked about 16 times a year — 1,161 recorded stockings between 1924 and 1997.
How many fish have been stocked in Flathead Lake?
About 107,477,002 fish have been stocked in Flathead Lake across 1,161 recorded events since 1924, per Montana fish & wildlife agency.
What size are the fish stocked in Flathead Lake?
Fish stocked in Flathead Lake average about 3.6 inches, based on the sizes the agency reported.