Fishing Dellitt Lake in Mercer County, Illinois

• Overview

  In Illinois, Dellitt Lake falls inside Mercer County. The surface lies 715 feet up. At 5 acres it is the sort of place you fish for an evening rather than a day. It is a small entry by Mercer County standards. The closest town, Aledo, is 2.5 miles away. The nearest city of size is Davenport, 26 miles away. This one is safely inside the county line.

• Where to Fish on Dellitt Lake

  The records we hold are silent on depth, so plan to find it yourself. Levels move with the draw rather than the rain on water like this. A reservoir gives you a hard edge, a shelf, and not much else. Species logged across Mercer County include channel catfish, johnny darter, green sunfish, bighead carp and red shiner. What holds for the county may not hold for this water. Treat Dellitt Lake as a water to read rather than to cover.

• Seasonal Patterns

  Climate normals give 75°F for July and 21°F for January. Fishing here follows the temperature more than the calendar. Hard water holds through the cold months, breaking up near mid March. Average temperatures cross freezing around mid March in spring and again near mid December in autumn. The middle of summer slows a little, with dawn and dusk carrying it. That shapes the year on Dellitt Lake.

• Tackle & Baits

  Public data does not answer the access question here. There is no mapped parking or launch close by, which usually means walking in. Catfish want bait on the bottom: cut bait or worms, a simple running rig, and patience after dark. Gates get locked out of season on water like this. Some water is controlled locally without a sign saying so. Failing this one, try Lake Matherville, 8.9 miles away. Check the current arrangement for Dellitt Lake.