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Bennington Lake, Walla Walla County, Washington
Walla Walla County

Bennington Lake

Of the 16,207 catchable trout WDFW put into Bennington Lake in 2025, 81% arrived in March, April or May; the rest went in on Jun 2 and Jun 3.

WDFW data through Oct 30, 2026. Page updated .

Bennington Lake in numbers

catchable trout in 2025
16,207
so far in 2026, through Oct 30
17,480
2025 against the 2015–2025 average of 16,995 a year
−5%

2026 is running close to 2025: 17,480 fish through Oct 30, against 16,207 by the same date a year earlier. The latest batch, 2,825 rainbow trout, went in on Jun 16, 2026, 142 days before this page was built.

WDFW lists Bennington Lake as 39.4 acres in Walla Walla County, at 1,199 ft. It is the larger of the 2 Walla Walla County waters on this site. Its 2025 stocking came to about 411 catchable trout per acre, 12th of the 37 waters on this site with a WDFW acreage.

Release log

Every release since January 2025

14 species-date records, newest first. Fish per lb is the figure WDFW reports for each batch.

Latest batch, Jun 16, 20262,825rainbow trout, 6 oz each
Summer 2026
Jun 16Rainbow trout2,8252.5 per lb · avg 6 oz
Jun 12Rainbow trout2,8252.5 per lb · avg 6 oz
Spring 2026
May 29Rainbow trout1,4002.1 per lb · avg 8 oz
May 21Rainbow trout2,5502.5 per lb · avg 6 oz
May 4Rainbow trout2,6002.4 per lb · avg 7 oz
Apr 20Rainbow trout1800.7 per lb · avg 1.4 lb
Apr 17Rainbow trout2,5502.5 per lb · avg 6 oz
Apr 16Rainbow trout2,5502.5 per lb · avg 6 oz
Summer 2025
Jun 3Rainbow trout2,9752.5 per lb · avg 6 oz
Jun 2Rainbow trout1320.7 per lb · avg 1.4 lb
Spring 2025
May 20Rainbow trout2,5502.5 per lb · avg 6 oz
May 13Rainbow trout5,1002.5 per lb · avg 6 oz
May 9Rainbow trout3500.7 per lb · avg 1.4 lb
May 6Rainbow trout5,1002.5 per lb · avg 6 oz
2015 – 2026

Fish released each year

2025 is yellow. 2026 is outlined because the year is not over: the data runs to Oct 30, 2026. The busiest full year was 2016, with 8 release dates and 20,595 fish; the 2015–2025 average is 6.8 release dates a year.

  1. 2015: 19,067 catchable fish on 9 release dates
  2. 21k2016: 20,595 catchable fish on 8 release dates
  3. 2017: 18,570 catchable fish on 8 release dates
  4. 2018: 17,690 catchable fish on 7 release dates
  5. 2019: 17,325 catchable fish on 5 release dates
  6. 2020: 14,662 catchable fish on 5 release dates
  7. 2021: 14,059 catchable fish on 6 release dates
  8. 2022: 16,863 catchable fish on 9 release dates
  9. 2023: 15,075 catchable fish on 4 release dates
  10. 2024: 16,830 catchable fish on 8 release dates
  11. 16k2025: 16,207 catchable fish on 6 release dates
  12. 17k2026 (to Oct 30): 17,480 catchable fish on 8 release dates

How big are these fish?

4 to 8 oz
33,025 fish, 98%
1 to 2 lb
662 fish, 2%

Weight is 1 ÷ fish per lb, as WDFW reports it for each batch. It is a batch average, not a guarantee for any one fish. Counts cover every release since January 2025.

Notes from the records

The biggest single batch since January 2025 was 5,100 rainbow trout on May 13, 2025. The heaviest fish were 350 rainbow trout on May 9, 2025, at 0.7 per lb, about 1.4 lb each.

Timing shifts from year to year. Treat this as a pattern, not a promise.

Straight-line distance between the map points WDFW gives for each water, not driving distance.

Also in Walla Walla County: Quarry Pond.