Sidley Lake fishing

Sidley Lake fishing is stocked with Rainbow Trout on a natural lake. It is stocked once in 2025, most often in September. Species guides list dawn and dusk as the active times.

Illustration, not a photo of this lake
Last stocked
September 25, 2025
370 days ago · Rainbow Trout
Plants on record
1
Since 2025
Species recorded
1
Average size
9.4 in
Surface acres
107.3
Elevation
3,683 ft

Fish at Sidley Lake

1 stocked · 1 confirmed present

Rainbow Trout Stocked · 1 plant · last September 25, 2025 Best: dawn, dusk

Last stocked September 25, 2025 · avg 9.4 in · 1 plant

Best: dawn, dusk

Rainbow Trout species guide

How Sidley Lake is stocked

Source: Washington Department of Fish and Wildlife.

About 28 reported fish per acre, 6th most of 23 lakes in Okanogan County with both a fish count and a surface area.

Stocking history

Source: Washington Department of Fish and Wildlife.
Date Species Quantity Avg. length Source
September 25, 2025 Rainbow Trout 3,000 9.4 in report

Access and facts

Water type
natural lake
Boat ramp
Yes

WDFW maintains a public water access area on this lake.

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Nearest lakes

Molson Lake 0.8 mi last stocked September 25, 2025 Lake Beth 14 mi last stocked April 22, 2025 Beaver Lake 14.9 mi last stocked April 22, 2025 Bonaparte Lake 15.2 mi last stocked June 11, 2025 Wannacut Lake 15.2 mi last stocked April 17, 2025

Camping near Sidley Lake

Campgrounds within 15 miles of Sidley Lake's mapped point, nearest first: Osoyoos Lake Veteran's Memorial Park camping (9.9 miles), Lost Lake Group Campground (12.3 miles), and Beth Lake camping (14.2 miles), each with its own campground page on campgroundsdb.com.

Straight-line distances.

Common questions

What fish are at Sidley Lake?

Fishing Sidley Lake usually means Rainbow Trout. The one plant on record is Rainbow Trout. Rainbow Trout was last stocked September 25, 2025, averaging 9.4 in.

When is Sidley Lake stocked?

Last stocked September 25, 2025. It is stocked once in 2025, most often in September. About 28 reported fish per acre, 6th most of 23 lakes in Okanogan County with both a fish count and a surface area.

How big are the fish stocked at Sidley Lake?

Rainbow Trout stocked at Sidley Lake average 9.4 in.

How do you get on Sidley Lake?

There is a boat ramp. WDFW maintains a public water access area on this lake.

Sources (1) +