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Hagerman Wma Oster Lake Fishing and Stocking

Gooding County, Idaho. The Idaho Department of Fish and Game lists 28 stockings here in the latest year of its data (Rainbow Trout and Yellow Trout), the most recent on Sep 24, 2026. Stocked in February, March, April, May, June, July, August and September in two or more years.

2026 Stocking

DateSpeciesFishSize
Sep 24, 2026Rainbow Trout353Catchable (6+ inches)
Sep 17, 2026Rainbow Trout352Catchable (6+ inches)
Sep 8, 2026Rainbow Trout480Catchable (12-14 inches)
Sep 4, 2026Rainbow Trout369Catchable (12-14 inches)
Aug 27, 2026Rainbow Trout233Catchable (12-14 inches)
Aug 20, 2026Rainbow Trout231Catchable (12-14 inches)
Aug 12, 2026Rainbow Trout239Catchable (12-14 inches)
Aug 6, 2026Rainbow Trout230Catchable (12-14 inches)
Jul 30, 2026Yellow Trout116Catchable (12-14 inches)
Jul 30, 2026Rainbow Trout141Catchable (12-14 inches)
Jul 22, 2026Yellow Trout225Catchable (12-14 inches)
Jul 15, 2026Yellow Trout226Catchable (12-14 inches)
Jun 29, 2026Yellow Trout232Catchable (12-14 inches)
Jun 25, 2026Yellow Trout480Catchable (12-14 inches)
Jun 16, 2026Yellow Trout480Catchable (12-14 inches)
Jun 11, 2026Rainbow Trout480Catchable (12-14 inches)
Jun 11, 2026Yellow Trout274Catchable (12-14 inches)
Jun 2, 2026Yellow Trout472Catchable (12-14 inches)
May 26, 2026Yellow Trout520Catchable (12-14 inches)
May 18, 2026Yellow Trout475Catchable (12-14 inches)
May 13, 2026Yellow Trout351Catchable (12-14 inches)
May 4, 2026Yellow Trout487Catchable (12-14 inches)
Mar 19, 2026Rainbow Trout358Catchable (12-14 inches)
Mar 18, 2026Rainbow Trout825Catchable (12-14 inches)
Mar 4, 2026Rainbow Trout2,640Catchable (6+ inches)
Mar 2, 2026Yellow Trout262Catchable (12-14 inches)
Mar 2, 2026Rainbow Trout621Catchable (12-14 inches)
Feb 26, 2026Rainbow Trout450Catchable (12-14 inches)

2025 Stocking

DateSpeciesFishSize
Sep 23, 2025Yellow Trout350Catchable (12-14 inches)
Sep 12, 2025Rainbow Trout351Catchable (6+ inches)
Sep 8, 2025Rainbow Trout357Catchable (12-14 inches)
Sep 5, 2025Rainbow Trout450Catchable (12-14 inches)
Aug 27, 2025Rainbow Trout229Catchable (6+ inches)
Aug 19, 2025Rainbow Trout227Catchable (12-14 inches)
Aug 15, 2025Rainbow Trout227Catchable (12-14 inches)
Aug 8, 2025Rainbow Trout227Catchable (12-14 inches)
Jul 23, 2025Yellow Trout225Catchable (12-14 inches)
Jul 17, 2025Yellow Trout225Catchable (12-14 inches)
Jul 9, 2025Rainbow Trout231Catchable (12-14 inches)
Jul 3, 2025Yellow Trout225Catchable (12-14 inches)
Jun 25, 2025Yellow Trout480Catchable (12-14 inches)
Jun 17, 2025Yellow Trout480Catchable (12-14 inches)
Jun 9, 2025Yellow Trout249Catchable (12-14 inches)
Jun 2, 2025Yellow Trout481Catchable (12-14 inches)
May 28, 2025Rainbow Trout482Catchable (12-14 inches)
May 21, 2025Yellow Trout255Catchable (12-14 inches)
May 15, 2025Rainbow Trout110Adults
May 14, 2025Rainbow Trout250Catchable (6+ inches)
May 7, 2025Rainbow Trout968Catchable (6+ inches)
Apr 23, 2025Rainbow Trout595Catchable (12-14 inches)
Apr 15, 2025Rainbow Trout610Catchable (6+ inches)
Apr 10, 2025Rainbow Trout398Catchable (6+ inches)
Apr 9, 2025Rainbow Trout123Adults
Apr 8, 2025Rainbow Trout405Catchable (6+ inches)
Apr 6, 2025Rainbow Trout600Catchable (6+ inches)
Mar 26, 2025Rainbow Trout900Catchable (12-14 inches)
Mar 18, 2025Rainbow Trout900Catchable (12-14 inches)
Mar 11, 2025Rainbow Trout902Catchable (12-14 inches)
Mar 6, 2025Rainbow Trout706Catchable (12-14 inches)
Mar 6, 2025Yellow Trout200Catchable (6+ inches)
Feb 25, 2025Yellow Trout400Catchable (6+ inches)
Feb 24, 2025Rainbow Trout1,800Catchable (12-14 inches)

2024 Stocking

DateSpeciesFishSize
Sep 26, 2024Rainbow Trout350Catchable (6+ inches)
Sep 19, 2024Rainbow Trout345Catchable (6+ inches)
Sep 12, 2024Rainbow Trout350Catchable (6+ inches)
Sep 11, 2024Rainbow Trout450Catchable (6+ inches)
Aug 30, 2024Yellow Trout226Catchable (12-14 inches)
Aug 22, 2024Rainbow Trout225Catchable (6+ inches)
Aug 15, 2024Yellow Trout228Catchable (12-14 inches)
Aug 8, 2024Yellow Trout228Catchable (12-14 inches)
Jul 23, 2024Rainbow Trout225Catchable (12-14 inches)
Jul 19, 2024Rainbow Trout225Catchable (12-14 inches)
Jul 12, 2024Rainbow Trout225Catchable (12-14 inches)
Jul 4, 2024Rainbow Trout225Catchable (12-14 inches)
Jun 25, 2024Yellow Trout195Catchable (12-14 inches)
Jun 25, 2024Rainbow Trout880Catchable (12-14 inches)
Jun 21, 2024Rainbow Trout945Catchable (12-14 inches)
Jun 14, 2024Rainbow Trout475Catchable (12-14 inches)
Jun 10, 2024Rainbow Trout250Catchable (12-14 inches)
Jun 6, 2024Yellow Trout163Catchable (12-14 inches)

Other Stocked Waters in Gooding County

About This Data

Every row comes from the stocking information published by the Idaho Department of Fish and Game, checked Oct 20, 2026. The agency lists this water as “Hagerman WMA Oster Lake #1”, “Hagerman WMA Oster Lake #2”, “Hagerman WMA Oster Lake #3” and “Hagerman WMA Oster Lake #4”. Species and sizes are given as the agency names them; a dash means the agency does not say.

More for Idaho Anglers

Stocking dates and places can change without notice; check with the agency before a trip. ReelTourney is not affiliated with the Idaho Department of Fish and Game.