Sonoma County · reservoir · 32 acres
Lake Ilsanjo
Lake Ilsanjo is a reservoir in Sonoma County, California. FishableWaters aggregates every stocking record for this water from California's fish & wildlife agency; the latest schedule and today's bite windows are above.
Best days this week
Days near a new or full moon tend to fish best.
Today's bite windows
Conditions, next 3 days
Today
Clear
86°
53°
10 mph
0%
Fri
Clear
90°
57°
11 mph
0%
Sat
Clear
96°
61°
10 mph
0%
↗ pressure risingPost-front rising pressure can slow things down for a day.
Stocking ledger
No published stocking records yet. This water stays in our books — the ledger begins the hour its state agency publishes a record.
Angler reports
What's biting
No reports yet — be the first
Best bite times
No reports yet
Field notes
No notes yet
Nearby waters
- Matanzas Creek Reservoir2.0 mi
- Santa Rosa Creek Reservoir2.2 mi
- South Fork Matanzas Creek2.4 mi
- Lake Ralphine2.7 mistocked Apr 5, 2026
- Rincon Creek3.0 mi
- Ducker Creek3.5 mi
- Brush Creek Reservoir4.6 mi
- Matanzas Creek4.4 mi
Seasons, limits, and rules are the state's call — check the official CA regulations and buy your license before you go. We link the source; we never restate the rules.
Lake Ilsanjo fishing — FAQ
Do I need a license to fish Lake Ilsanjo?+
Yes — California requires a fishing license. Buy one from the state and check current seasons and limits before you go; both are linked on this page.
Where is Lake Ilsanjo?+
Lake Ilsanjo is a reservoir in Sonoma County, California. Driving directions and an interactive topo map are on this page.