Diablo Lake
WDFW logged 0 trout stocking dates at Diablo Lake in 2026 so far, 0 fish in all. The latest was on Oct 27, 2025. WDFW lists it as “Diablo Lk (What)”.
WDFW data pulled . Latest record in the WDFW data for any water: Nov 4, 2026.
Diablo Lake in numbers
- fish stocked in 2026, through Nov 6
- 0
- by the same date in 2025
- 249,364
- in all of 2025
- 249,364
Every stocking record
Every trout and kokanee release WDFW lists for this water in the last two years, newest first, then yearly totals since 2020. Counts include fry and fingerlings as well as catchable trout: WDFW calls catchable fish “legals”. Fish per pound is WDFW’s figure for each release; fewer fish per pound means bigger fish.
| Date | Species | Fish | Life stage | Fish per lb |
|---|---|---|---|---|
| Oct 27 | Rainbow trout249,364 fish · Fry | 249,364 | Fry | 1000 |
| Date | Species | Fish | Life stage | Fish per lb |
|---|---|---|---|---|
| Nov 4 | Rainbow trout134,588 fish · Fry | 134,588 | Fry | 800 |
| Year | Stocking dates | Fish |
|---|---|---|
| 2025 | 1 | 249,364 |
| 2024 | 1 | 134,588 |
| 2023 | 1 | 164,244 |
| 2022 | 1 | 278,347 |
| 2021 | 1 | 318,485 |
| 2020 | 1 | 249,097 |
Trout stocked each year
2026 is outlined because the year is not over. The tallest full year is yellow. Counts include fry and fingerlings.
What is stocked here
| Species | Fish | Share |
|---|---|---|
| Rainbow trout | 1,394,125 | 100% |
Map point 48.7128, -121.1162: the USGS Geographic Names Information System point for this reservoir (feature 1518742). It marks the water, not a parking lot or a boat launch.
Closest waters on this site
Straight-line distance between USGS map points, not driving distance.
Also in Whatcom County: Lake Whatcom, Lake Padden, Silver Lake (what) 01, Lake Terrell, Lake Fazon, Cain Lake, Whatcom Creek, Lost Hidden Lake.
Source: WDFW Fish Plants dataset, data.wa.gov, Washington Department of Fish and Wildlife. Pulled . Check the agency and the current fishing rules before you go.
Near Diablo Lake
Boat access, bait shops, rentals and places to stay within 10 miles. Distances are straight lines from the map point of the water, not driving distance.
Campgrounds and RV parks
nearest 3- Gorge Lake Campgroundcampground · Whatcom County1.6 mi
- Ross Lake ResortRV park · Marblemount1.6 mi
- Colonial Creek South Campgroundcampground · Whatcom County1.9 mi
Lodging
1 listed- Ross Lake Resortlodge · Whatcom County3.1 mi
Businesses: Overture Maps Foundation open places data (release 2026-10-21.0, pulled 2026-11-06), from the businesses’ public listings. We have not visited them and do not rank them. Hours and services change, so call ahead.