Billy Clapp Lake
WDFW logged 3 trout stocking dates at Billy Clapp Lake in 2026 so far, 180,072 fish in all. The latest was on Jun 18, 2026. WDFW lists it as “Billy Clapp Lk (Gran)”.
WDFW data pulled . Latest record in the WDFW data for any water: Nov 4, 2026.
Billy Clapp Lake in numbers
- fish stocked in 2026, through Nov 6
- 180,072
- by the same date in 2025
- 81,083
- in all of 2025
- 81,083
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 |
|---|---|---|---|---|
| Jun 18 | Kokanee54,710 fish · Fry | 54,710 | Fry | 126 |
| May 13 | Kokanee51,000 fish · Fry | 51,000 | Fry | 300 |
| Apr 21 | Rainbow trout74,362 fish · Fry | 74,362 | Fry | 112 |
| Date | Species | Fish | Life stage | Fish per lb |
|---|---|---|---|---|
| Apr 16 | Rainbow trout71,083 fish · Fry | 71,083 | Fry | 95.8 |
| Apr 16 | Rainbow trout10,000 fish · Fry | 10,000 | Fry | 95.8 |
| Year | Stocking dates | Fish |
|---|---|---|
| 2026 | 3 | 180,072 |
| 2025 | 1 | 81,083 |
| 2024 | 2 | 99,457 |
| 2023 | 2 | 121,955 |
| 2022 | 4 | 249,211 |
| 2021 | 4 | 279,558 |
| 2020 | 6 | 213,060 |
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 |
|---|---|---|
| Kokanee | 736,109 | 60% |
| Rainbow trout | 488,287 | 40% |
Map point 47.4531, -119.2479: the USGS Geographic Names Information System point for this reservoir (feature 1503374). 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 Grant County: Hatchery Creek, Banks Lake, Dusty Lake, Moses Lake, Park Lake, Homestead Lake, Blue Lake, Potholes Reservoir.
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 Billy Clapp 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.
- Boat ramps1 · concrete
- Boarding floatYes
- Parking lots1
- Restrooms1
- CampingNo
- OpenYear-round The lake is a reservoir operated by the Bureau of Reclamation (https://www.usbr.gov/pn/hydromet/cbp/). Water levels are highest during irrigation season. The lake level drops about 30' starting in mid-October and is refilled starting in early- to mid-March.
From the WDFW access area page. WDFW: a Discover Pass or Vehicle Access Pass is required at all WDFW recreation lands.
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.