Mayfield Reservoir trout stocking
Lewis County, Washington · lake
Mayfield Reservoir was last stocked 2 months ago (Aug 25, 2026). We have 183 stockings on record since Apr 6, 2017, 19 in the last 12 months (72,001 fish). Most stockings come in June to August. Species stocked: rainbow trout, cutthroat trout.
Last stocked
2 months ago
Aug 25, 2026
Next planned
Not announced
Last 12 months
19 stockings
72,001 fish
On record
183 stockings
since Apr 6, 2017
- The most stocked water in Lewis County (183 stocking days on record).
- Stocked more often than 100% of Washington waters on our record.
When is Mayfield Reservoir stocked?
Most stockings come in June to August. Stocked 19 times in 2026, usually on Tuesdays, about every 7 days.
By month, all years
Year by year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 2 | 3 | 5 | 5 | 4 | |||||||
| 2025 | 2 | 3 | 5 | 5 | 4 | |||||||
| 2024 | 3 | 1 | 4 | 5 | 4 | |||||||
| 2023 | 1 | 2 | 2 | 5 | 4 | 4 | ||||||
| 2022 | 1 | 2 | 2 | 5 | 4 | 4 | ||||||
| 2021 | 3 | 2 | 5 | 4 | 4 | |||||||
| 2020 | 4 | 2 | 4 | 5 | 4 | |||||||
| 2019 | 2 | 3 | 4 | 5 | 4 |
What is stocked
| Species | Stockings | Fish | Fish per stocking |
|---|---|---|---|
| Rainbow trout | 182 | 665,523 | 3,657 |
| Cutthroat trout | 1 | 790 | 790 |
Stocking history
202619 stockings · 72,001 fish
| Date | Species | Fish | Since previous | Hatchery |
|---|---|---|---|---|
Aug 25Latest Tuesday | Rainbow trout | 2,220 2,000 lb | 6 days | Mckernan Hatchery |
Aug 19 Wednesday | Rainbow trout | 2,320 2,000 lb | 8 days | Mckernan Hatchery |
Aug 11 Tuesday | Rainbow trout | 2,520 2,000 lb | 6 days | Mckernan Hatchery |
Aug 5 Wednesday | Rainbow trout | 2,505 2,000 lb | 1 week | Mckernan Hatchery |
Jul 29 Wednesday | Rainbow trout | 2,660 2,000 lb | 8 days | Mckernan Hatchery |
Jul 21 Tuesday | Rainbow trout | 2,800 2,000 lb | 1 week | Mckernan Hatchery |
Jul 14 Tuesday | Rainbow trout | 2,500 2,000 lb | 5 days | Mckernan Hatchery |
Jul 9 Thursday | Rainbow trout | 2,500 1,000 lb | 1 day | Mossyrock Hatchery |
Jul 8 Wednesday | Rainbow trout | 3,120 2,000 lb | 8 days | Mckernan Hatchery |
Jun 30 Tuesday | Rainbow trout | 3,320 2,000 lb | 1 week | Mckernan Hatchery |
Jun 23 Tuesday | Rainbow trout | 2,980 2,000 lb | 1 week | Mckernan Hatchery |
Jun 16 Tuesday | Rainbow trout | 3,560 2,000 lb | 6 days | George Adams Hatchery |
Jun 10 Wednesday | Rainbow trout | 3,664 2,003 lb | 1 week | Mckernan Hatchery |
Jun 3 Wednesday | Rainbow trout | 3,732 2,001 lb | 6 days | Mckernan Hatchery |
May 28 Thursday | Rainbow trout | 10,800 4,000 lb | 1 week | Mossyrock Hatchery |
May 21 Thursday | Rainbow trout | 5,400 2,000 lb | 16 days | Mossyrock Hatchery |
May 5 Tuesday | Rainbow trout | 4,800 2,000 lb | 26 days | Mossyrock Hatchery |
Apr 9 Thursday | Rainbow trout | 5,200 2,000 lb | 1 week | Mossyrock Hatchery |
Apr 2 Thursday | Rainbow trout | 5,400 2,000 lb | 219 days | Mossyrock Hatchery |
202519 stockings · 64,970 fish
| Date | Species | Fish | Since previous | Hatchery |
|---|---|---|---|---|
Aug 26 Tuesday | Rainbow trout | 2,560 2,000 lb | 6 days | Mckernan Hatchery |
Aug 20 Wednesday | Rainbow trout | 2,665 2,019 lb | 9 days | Mckernan Hatchery |
Aug 11 Monday | Rainbow trout | 2,526 2,005 lb | 6 days | Mckernan Hatchery |
Aug 5 Tuesday | Rainbow trout | 2,767 2,005 lb | 1 week | Mckernan Hatchery |
Jul 29 Tuesday | Rainbow trout | 2,660 2,000 lb | 6 days | Mckernan Hatchery |
Jul 23 Wednesday | Rainbow trout | 2,860 2,000 lb | 1 week | Mckernan Hatchery |
Jul 16 Wednesday | Rainbow trout | 3,160 2,000 lb | 8 days | Mckernan Hatchery |
Jul 8 Tuesday | Rainbow trout | 3,120 2,000 lb | 6 days | Mckernan Hatchery |
Jul 2 Wednesday | Rainbow trout | 3,460 2,000 lb | 1 week | Mckernan Hatchery |
Jun 25 Wednesday | Rainbow trout | 3,552 2,007 lb | 1 week | Mckernan Hatchery |
Jun 18 Wednesday | Rainbow trout | 1,700 1,000 lb | 1 day | Mckernan Hatchery |
Jun 17 Tuesday | Rainbow trout | 1,700 1,000 lb | 6 days | Mckernan Hatchery |
Jun 11 Wednesday | Rainbow trout | 3,915 2,008 lb | 1 week | Mckernan Hatchery |
Jun 4 Wednesday | Rainbow trout | 4,105 2,002 lb | 6 days | Mckernan Hatchery |
May 29 Thursday | Rainbow trout | 4,400 2,000 lb | 1 week | Mossyrock Hatchery |
May 22 Thursday | Rainbow trout | 4,400 2,000 lb | 3 weeks | Mossyrock Hatchery |
May 1 Thursday | Rainbow trout | 4,800 2,000 lb | 3 weeks | Mossyrock Hatchery |
Apr 10 Thursday | Rainbow trout | 5,400 2,000 lb | 1 week | Mossyrock Hatchery |
Apr 3 Thursday | Rainbow trout | 5,220 2,000 lb | 218 days | Mossyrock Hatchery |
202417 stockings · 64,902 fish
| Date | Species | Fish | Since previous | Hatchery |
|---|---|---|---|---|
Aug 28 Wednesday | Rainbow trout | 2,500 2,000 lb | 1 week | Eells Springs |
Aug 21 Wednesday | Rainbow trout | 2,486 2,005 lb | 8 days | Eells Springs |
Aug 13 Tuesday | Rainbow trout | 2,380 2,000 lb | 6 days | Eells Springs |
Aug 7 Wednesday | Rainbow trout | 2,680 2,000 lb | 1 week | Eells Springs |
Jul 31 Wednesday | Rainbow trout | 2,920 2,000 lb | 1 week | Eells Springs |
Jul 24 Wednesday | Rainbow trout | 2,620 2,000 lb | 1 week | Eells Springs |
Jul 17 Wednesday | Rainbow trout | 3,320 2,000 lb | 1 week | Eells Springs |
Jul 10 Wednesday | Rainbow trout | 3,280 2,000 lb | 1 week | Eells Springs |
Jul 3 Wednesday | Rainbow trout | 3,420 2,000 lb | 1 week | Eells Springs |
Jun 26 Wednesday | Rainbow trout | 3,620 2,001 lb | 8 days | Eells Springs |
Jun 18 Tuesday | Rainbow trout | 3,900 1,990 lb | 6 days | Eells Springs |
Jun 12 Wednesday | Rainbow trout | 3,837 2,019 lb | 1 week | Eells Springs |
Jun 5 Wednesday | Rainbow trout | 4,080 2,010 lb | 2 weeks | Eells Springs |
May 22 Wednesday | Rainbow trout | 8,459 4,000 lb | 34 days | Mossyrock Hatchery |
Apr 18 Thursday | Rainbow trout | 5,000 2,000 lb | 1 week | Mossyrock Hatchery |
Apr 11 Thursday | Rainbow trout | 5,000 2,000 lb | 1 week | Mossyrock Hatchery |
Apr 4 Thursday | Rainbow trout | 5,400 2,000 lb | 225 days | Mossyrock Hatchery |
202318 stockings · 68,390 fish
- Aug 23 rainbow trout, 2,420 fish
- Aug 15 rainbow trout, 2,600 fish
- Aug 9 rainbow trout, 2,800 fish
- Aug 2 rainbow trout, 2,720 fish
- Jul 26 rainbow trout, 2,800 fish
- Jul 19 rainbow trout, 3,240 fish
- Jul 12 rainbow trout, 3,460 fish
- Jul 5 rainbow trout, 3,780 fish
- Jun 28 rainbow trout, 3,600 fish
- Jun 21 rainbow trout, 3,520 fish
- Jun 14 rainbow trout, 3,400 fish
- Jun 7 rainbow trout, 4,050 fish
- Jun 1 rainbow trout, 3,600 fish
- May 18 rainbow trout, 5,000 fish
- May 4 rainbow trout, 5,200 fish
- Apr 27 rainbow trout, 5,400 fish
- Apr 6 rainbow trout, 5,400 fish
- Mar 30 rainbow trout, 5,400 fish
202219 stockings · 67,928 fish
- Aug 23 rainbow trout, 2,378 fish
- Aug 16 rainbow trout, 2,600 fish
- Aug 9 rainbow trout, 2,580 fish
- Aug 3 rainbow trout, 2,720 fish
- Jul 27 rainbow trout, 2,660 fish
- Jul 19 rainbow trout, 3,020 fish
- Jul 12 rainbow trout, 3,200 fish
- Jul 6 rainbow trout, 3,440 fish
- Jun 29 rainbow trout, 3,600 fish
- Jun 22 rainbow trout, 3,540 fish
- Jun 14 rainbow trout, 4,120 fish
- Jun 8 rainbow trout, 4,080 fish
- Jun 1 rainbow trout, 4,200 fish
- May 19 rainbow trout, 4,400 fish
- May 5 rainbow trout, 4,600 fish
- Apr 28 rainbow trout, 4,800 fish
- Apr 7 rainbow trout, 5,600 fish
- Yearly total cutthroat trout, 790 fish
- Mar 31 rainbow trout, 5,600 fish
202118 stockings · 61,960 fish
- Aug 25 rainbow trout, 2,400 fish
- Aug 17 rainbow trout, 2,220 fish
- Aug 11 rainbow trout, 2,340 fish
- Aug 4 rainbow trout, 2,440 fish
- Jul 28 rainbow trout, 2,540 fish
- Jul 21 rainbow trout, 2,880 fish
- Jul 14 rainbow trout, 2,800 fish
- Jul 7 rainbow trout, 3,200 fish
- Jun 30 rainbow trout, 3,360 fish
- Jun 23 rainbow trout, 3,260 fish
- Jun 16 rainbow trout, 3,400 fish
- Jun 9 rainbow trout, 3,660 fish
- Jun 2 rainbow trout, 3,460 fish
- May 28 rainbow trout, 4,600 fish
- May 13 rainbow trout, 4,800 fish
- Apr 29 rainbow trout, 4,600 fish
- Apr 22 rainbow trout, 5,000 fish
- Apr 1 rainbow trout, 5,000 fish
202019 stockings · 64,930 fish
- Aug 25 rainbow trout, 2,080 fish
- Aug 19 rainbow trout, 2,220 fish
- Aug 12 rainbow trout, 2,205 fish
- Aug 5 rainbow trout, 2,466 fish
- Jul 28 rainbow trout, 2,659 fish
- Jul 22 rainbow trout, 2,700 fish
- Jul 14 rainbow trout, 2,740 fish
- Jul 8 rainbow trout, 2,960 fish
- Jul 1 rainbow trout, 3,120 fish
- Jun 23 rainbow trout, 3,280 fish
- Jun 17 rainbow trout, 3,260 fish
- Jun 9 rainbow trout, 3,640 fish
- Jun 3 rainbow trout, 3,800 fish
- May 28 rainbow trout, 5,000 fish
- May 13 rainbow trout, 3,600 fish
- Apr 30 rainbow trout, 4,400 fish
- Apr 23 rainbow trout, 4,800 fish
- Apr 9 rainbow trout, 4,800 fish
- Apr 2 rainbow trout, 5,200 fish
201918 stockings · 66,665 fish
- Aug 29 rainbow trout, 2,291 fish
- Aug 22 rainbow trout, 2,700 fish
- Aug 15 rainbow trout, 2,340 fish
- Aug 7 rainbow trout, 2,680 fish
- Jul 29 rainbow trout, 2,648 fish
- Jul 25 rainbow trout, 2,786 fish
- Jul 18 rainbow trout, 2,800 fish
- Jul 11 rainbow trout, 2,700 fish
- Jul 2 rainbow trout, 3,000 fish
- Jun 27 rainbow trout, 3,320 fish
- Jun 20 rainbow trout, 3,920 fish
- Jun 13 rainbow trout, 3,700 fish
- Jun 6 rainbow trout, 4,180 fish
- May 30 rainbow trout, 5,400 fish
- May 16 rainbow trout, 5,400 fish
- May 2 rainbow trout, 5,600 fish
- Apr 25 rainbow trout, 5,600 fish
- Apr 4 rainbow trout, 5,600 fish
201818 stockings · 66,667 fish
- Aug 30 rainbow trout, 2,600 fish
- Aug 23 rainbow trout, 2,600 fish
- Aug 15 rainbow trout, 2,640 fish
- Aug 8 rainbow trout, 2,700 fish
- Aug 2 rainbow trout, 2,860 fish
- Jul 26 rainbow trout, 2,820 fish
- Jul 19 rainbow trout, 2,960 fish
- Jul 12 rainbow trout, 3,380 fish
- Jul 5 rainbow trout, 3,200 fish
- Jun 28 rainbow trout, 3,637 fish
- Jun 20 rainbow trout, 4,502 fish
- Jun 14 rainbow trout, 5,213 fish
- Jun 7 rainbow trout, 4,735 fish
- May 31 rainbow trout, 4,000 fish
- May 17 rainbow trout, 4,800 fish
- May 3 rainbow trout, 5,000 fish
- Apr 26 rainbow trout, 5,000 fish
- Apr 5 rainbow trout, 4,020 fish
201718 stockings · 67,900 fish
- Aug 31 rainbow trout, 2,920 fish
- Aug 24 rainbow trout, 2,700 fish
- Aug 16 rainbow trout, 2,960 fish
- Aug 10 rainbow trout, 3,420 fish
- Aug 2 rainbow trout, 3,020 fish
- Jul 27 rainbow trout, 3,400 fish
- Jul 20 rainbow trout, 3,320 fish
- Jul 12 rainbow trout, 4,066 fish
- Jul 6 rainbow trout, 4,290 fish
- Jun 29 rainbow trout, 4,260 fish
- Jun 28 rainbow trout, 2,440 fish
- Jun 22 rainbow trout, 6,860 fish
- Jun 15 rainbow trout, 3,600 fish
- Jun 8 rainbow trout, 4,000 fish
- Jun 1 rainbow trout, 3,600 fish
- May 4 rainbow trout, 4,200 fish
- Apr 27 rainbow trout, 4,400 fish
- Apr 6 rainbow trout, 4,444 fish
From Washington fish and wildlife agency reports, collected nightly and kept after the agency takes them down. Agencies revise reports; check the agency's report before you go. Seasons and limits: Washington fishing regulations.
Other stocked waters in Lewis County
- Spud Lakelakestocked Nov 1, 2026
- Riffe Lakelakestocked Oct 27, 2026
- Mineral Lakelakestocked Oct 15, 2026
- Mud Lakelakestocked Oct 13, 2026
- Willame Lakelakestocked Sep 12, 2026
- Watch Lakelakestocked Sep 11, 2026
- Frying Pan Lakelakestocked Sep 7, 2026
- Fizrenken Lakelakestocked Sep 3, 2026
All stocked waters in Lewis CountyStocked this week in Washington
Questions about Mayfield Reservoir
- When was Mayfield Reservoir last stocked?
- The latest reported stocking was Aug 25, 2026 (rainbow trout, 2,220 fish), according to Washington agency reports.
- How often is Mayfield Reservoir stocked?
- Stocked 19 times in 2026, usually on Tuesdays, about every 7 days. Across all years on record, most stockings come in June to August.
- Is Mayfield Reservoir stocked often?
- The most stocked water in Lewis County (183 stocking days on record). Stocked more often than 100% of Washington waters on our record. We count each day the agency reported stocking it.
- What kind of trout are stocked in Mayfield Reservoir?
- Rainbow trout (182 stockings, 665,523 fish); Cutthroat trout (1 stocking, 790 fish).