← Lake Guide42.30° N · 95.03° W

Iowa

Black Hawk Lake

Black Hawk Lake totals about 914 acres in Iowa's Sac County; largemouth patterns trade depth, cover, and current through the year.

Surface
914acres
Primary species
Largemouth
§ 01Today on the water · Black Hawk Lakeloading…
Air temp
Barometric
Wind
Moon
Waxing Crescent
day 5.0 · 26% lit

Loading current conditions…

§ 03Next 3 daysloading…

Loading next 3 days…

§ 04Field notesIowa

Where it is

Black Hawk Lake sits in Sac County, Iowa, covering about 914 acres. Where the largemouth sit changes with the season, not the map.

Seasonal pattern

Spring. Warming water pulls largemouth toward shallow, protected areas where they stage and spawn; the quickest-warming pockets lead.

Summer. Heat pushes fish off the shallows toward depth and shade; work the cooler ends of the day.

Fall. As water cools, forage and bass return toward shallower water; movement is wide, so covering water pays.

Winter. Cold water settles fish deep and slow; patience and a subtle presentation are the more dependable choice.

Key structure

  • Creek and cove mouths that funnel fish and bait
  • Weed edges and the clean lines along them
  • Inside turns where a bank changes angle
  • Submerged wood, brush, and laydown cover

The calendar decides which of these is worth time on a given day.

Forage

The bait on Black Hawk Lake runs to small panfish and shad-class baitfish; bass set up where those schools move.

Access

Public launches surround Black Hawk Lake; check seasonal closures, water levels, and weather before a trip.

Regulations

Check current state and local regulations before fishing; limits and seasons can change.

§ 05Sources & field guides

Field guides

    Data & references

    • Today's conditions — Open-Meteo, refreshed every ~15 min
    • Moon phase — local astronomical calculation, no external API
    • Lake area, depth, structure — Identity, surface area, coordinates and county/state are from the ProjectD canonical waterbody index (snapshot conus-20260518-v1, group gnis:00454657). Maximum depth and regulation links were not available from an acceptable source and are intentionally omitted.
    • Regulations — verify current rules with before fishing

    Last revised · Back to Lake Guide