Macon County · reservoir · 2,905 acres
Lake Decatur
Stocked 10× since 2022 · Illinois DNR
Lake Decatur is a reservoir in Macon County, Illinois, stocked with Striped Bass x White Bass (Wiper) and Walleye — most recently on Jan 1, 2026. FishableWaters aggregates every stocking record for this water from Illinois DNR; 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
Partly cloudy
83°
59°
9 mph
0%
Fri
Drizzle
83°
63°
17 mph
43%
Sat
Showers
72°
68°
15 mph
83%
→ pressure steadyStable weather — expect a normal bite.
Stocking ledger
| — 2026 — | ||||
| Jan 1 | Walleye | 89,258 | 2" | |
| — 2025 — | ||||
| Jan 1 | Striped Bass x White Bass (Wiper) | 37,881 | 2" | |
| Jan 1 | Walleye | 66,056 | 2" | |
| Jan 1 | Walleye | 66,056 | 2" | |
| — 2024 — | ||||
| Jan 1 | Walleye | 74,193 | 2" | |
| Jan 1 | Striped Bass x White Bass (Wiper) | 32,698 | 2" | |
| — 2023 — | ||||
| Jan 1 | Striped Bass x White Bass (Wiper) | 26,554 | 2" | |
| Jan 1 | Walleye | 18,503 | 2" | |
| — 2022 — | ||||
| Jan 1 | Striped Bass x White Bass (Wiper) | 31,500 | 2" | |
| Jan 1 | Walleye | 88,658 | 2" | |
When does Lake Decatur get stocked?
Going by 10 records since 2022, stocking here peaks in January.
Angler reports
What's biting
No reports yet — be the first
Best bite times
No reports yet
Field notes
No notes yet
All Illinois waters with striped bass x white bass (wiper) → · All Illinois waters with walleye →
Nearby waters
- A E Staley Cooling Lake1.3 mi
- Long Creek3.0 mi
- Finley Creek3.3 mi
- Big Creek3.4 mi
- Sand Creek4.3 mi
- Ward Branch4.5 mi
- Lake Tokorozawa5.1 mi
- Spring Creek5.6 mi
Seasons, limits, and rules are the state's call — check the official IL regulations and buy your license before you go. We link the source; we never restate the rules.
Lake Decatur fishing — FAQ
What fish are stocked in Lake Decatur?+
Lake Decatur is stocked with Striped Bass x White Bass (Wiper) and Walleye in Macon County, Illinois, most recently on Jan 1, 2026 by Illinois DNR. The full stocking ledger is on this page.
When does Lake Decatur get stocked?+
Going by 10 records since 2022, stocking at Lake Decatur peaks in January. Check this page for the season's scheduled and most recent stockings.
Do I need a license to fish Lake Decatur?+
Yes — Illinois 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 Decatur?+
Lake Decatur is a reservoir in Macon County, Illinois. Driving directions and an interactive topo map are on this page.
Data: Illinois DNR · updated Jan 1, 2026 · checked daily · we publish what agencies publish, nothing else.