Pennington County · reservoir · 328 acres
Deerfield Lake
1 stocking on record · South Dakota Game, Fish and Parks
Deerfield Lake is a reservoir in Pennington County, South Dakota — most recently on Jul 15, 2026. FishableWaters aggregates every stocking record for this water from South Dakota Game, Fish and Parks; 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
Overcast
76°
58°
15 mph
23%
Fri
Overcast
80°
52°
9 mph
14%
Sat
Mostly clear
90°
60°
11 mph
1%
↗ pressure risingPost-front rising pressure can slow things down for a day.
Stocking ledger
| — 2026 — | ||||
| Jul 15 | Walleye | 24,737 | ||
Angler reports
What's biting
No reports yet — be the first
Best bite times
No reports yet
Field notes
No notes yet
Nearby waters
- Gold Run0.7 mi
- South Fork Castle Creek1.7 mi
- Ditch Creek3.4 mi
- Pole Creek4.1 mi
- North Fork Castle Creek4.6 mi
- Pole Creek Pond Lake6.1 mi
- Duck Lake5.8 mi
- Mud Lake7.4 mi
Seasons, limits, and rules are the state's call — check the official SD regulations and buy your license before you go. We link the source; we never restate the rules.
Deerfield Lake fishing — FAQ
Do I need a license to fish Deerfield Lake?+
Yes — South Dakota 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 Deerfield Lake?+
Deerfield Lake is a reservoir in Pennington County, South Dakota. Driving directions and an interactive topo map are on this page.
Data: South Dakota Game, Fish and Parks · updated Jul 15, 2026 · checked daily · we publish what agencies publish, nothing else.