Deer in Illinois: Where to Look and What Signs to Watch For

Yes, white-tailed deer (Odocoileus virginianus) are present in all 102 Illinois counties and are the only wild deer species in the state. Historical overhunting nearly eliminated them by the early 1900s, but reintroduction and protection efforts have restored populations to healthy levels. Today, Illinois has an estimated 400,000 to 500,000 white-tailed deer. They are so abundant in some areas that wildlife managers consider them overabundant, leading to increased vehicle collisions and forest damage from overbrowsing. If you explore Illinois outdoors, you have a good chance of encountering fresh deer sign or the animals themselves.

White-tailed deer are the only native wild deer species in Illinois today. Historically, other species like elk and caribou roamed the state during the Pleistocene, but they disappeared thousands of years ago. Mule deer, which are found in western North America, are not present in Illinois. All deer you encounter in Illinois will be white-tailed deer, identifiable by their reddish-brown winter coat, white underside of their tail, and medium size (typically 150 to 300 pounds for adults). Occasionally, escaped or released fallow deer or other exotic species have been reported in Illinois, but these are rare and not established populations.

White-tailed deer are widespread in Illinois, but your best odds are in areas with a mix of forest and open fields. The Shawnee National Forest in southern Illinois, as well as state parks like Starved Rock and Mississippi Palisades, hold healthy populations. Deer also frequent agricultural areas, especially near corn and soybean fields. Start with Illinois wildlife areas for a full list of public lands.

See our state wildlife page for the next step.

A beginner can start by looking for hoof prints that are heart-shaped, about 2-3 inches long. Deer droppings are small, oval pellets. Look for rubs on trees where bucks have scraped bark, and scrapes on the ground. Trails through tall grass or woods are also good clues. For more details, see our deer identification guide.

See our state animal guide for the next step.

Deer are crepuscular, meaning they feed most actively at dawn and dusk. During the rut (October to December), they may be moving at any hour. In hot weather, they bed down during the day and move more at night. Plan your spotting trips for early morning or late afternoon for the best odds.

See our Deer guide for the next step.