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Isabella Lake trout stocking

Mason County, Washington · lake · about 116 ft elevation

Isabella Lake was last stocked 5 weeks ago (Oct 5, 2026). We have 11 stockings on record since Oct 3, 2016, 1 in the last 12 months (8,320 fish). Most stockings come in October. Species stocked: rainbow trout.

Last stocked
5 weeks ago
Oct 5, 2026
Next planned
Not announced
Last 12 months
1 stocking
8,320 fish
On record
11 stockings
since Oct 3, 2016
  • Number 28 of 55 stocked waters in Mason County by stocking days.
  • Stocked more often than 68% of Washington waters on our record.

River conditions

Nearest USGS gage: GOLDSBOROUGH CREEK ABOVE 7TH STREET AT SHELTON, WA (5 km away, on a different stream or lake).

Flow
52 cfs
higher than usual for the last six weeks
Gage height
18.83 ft
284562Sep 25Nov 7
Streamflow, last six weeks (cfs), daily. Latest: 60 cfs on Nov 7.

Latest reading Nov 9, 2026, 9:00 AM UTC. USGS data are provisional. Gage page at USGS.

Weather at Isabella Lake

  • Overnight
    46°F
    Cloudy
    2% rain · wind 3 mph
  • Saturday
    61°F
    Cloudy then Chance Light Rain
    40% rain · wind 3 to 14 mph
  • Saturday Night
    47°F
    Rain
    100% rain · wind 16 to 23 mph
  • Sunday
    55°F
    Rain Showers
    80% rain · wind 6 to 16 mph
  • Sunday Night
    37°F
    Mostly Cloudy
    2% rain · wind 0 to 6 mph
  • Monday
    53°F
    Light Rain
    89% rain · wind 0 to 3 mph

Forecast from the National Weather Service for this location, refreshed hourly.

When is Isabella Lake stocked?

Most stockings come in October.

By month, all years

JanFebMarAprMayJunJulAugSep: 1 stocking1SepOct: 10 stockings10OctNovDec
Stockings of Isabella Lake by month, all years on record. This month is shown in blue.

Year by year

JanFebMarAprMayJunJulAugSepOctNovDec
20261
20251
20241
20231
20221
20211
20201
20191

What is stocked

SpeciesStockingsFishFish per stocking
Rainbow trout1177,8627,078

Stocking history

20261 stocking · 8,320 fish
DateSpeciesFishSince previousHatchery
Oct 5Latest
Monday · 5 weeks ago
Rainbow trout
8,320
540 lb
52 weeksEells Springs
20251 stocking · 8,325 fish
DateSpeciesFishSince previousHatchery
Oct 6
Monday
Rainbow trout
8,325
670 lb
54 weeksEells Springs
20241 stocking · 8,320 fish
DateSpeciesFishSince previousHatchery
Sep 23
Monday
Rainbow trout
8,320
671 lb
51 weeksEells Springs
20231 stocking · 8,320 fish
  • Oct 2 rainbow trout, 8,320 fish
20221 stocking · 8,650 fish
  • Oct 3 rainbow trout, 8,650 fish
20211 stocking · 8,320 fish
  • Oct 4 rainbow trout, 8,320 fish
20201 stocking · 8,400 fish
  • Oct 12 rainbow trout, 8,400 fish
20191 stocking · 8,360 fish
  • Oct 1 rainbow trout, 8,360 fish
20181 stocking · 8,547 fish
  • Oct 23 rainbow trout, 8,547 fish
20171 stocking · 1,200 fish
  • Oct 3 rainbow trout, 1,200 fish
20161 stocking · 1,100 fish
  • Oct 3 rainbow trout, 1,100 fish

From Washington fish and wildlife agency reports, collected nightly and kept after the agency takes them down. Agencies revise reports; check the agency's report before you go. Seasons and limits: Washington fishing regulations.

Where is Isabella Lake?

Mason County, Washington. Approximate: the marker is the USGS place-name point for this water, not an agency location.

DirectionsLarger mapWashington fishing regulations

Stocked waters near Isabella Lake

All stocked waters in Mason CountyStocked this week in Washington

Questions about Isabella Lake

When was Isabella Lake last stocked?
The latest reported stocking was Oct 5, 2026 (rainbow trout, 8,320 fish), according to Washington agency reports.
How often is Isabella Lake stocked?
It was stocked once in the last 12 months. Across all years on record, most stockings come in October.
Is Isabella Lake stocked often?
Number 28 of 55 stocked waters in Mason County by stocking days. Stocked more often than 68% of Washington waters on our record. We count each day the agency reported stocking it.
What kind of trout are stocked in Isabella Lake?
Rainbow trout (11 stockings, 77,862 fish).