Why Ticks Are So Bad Along Chicago's North Shore

Understanding North Shore Tick Pressure

7/22/20261 min read

Many homeowners are surprised by how frequently ticks are encountered throughout Lake Forest, Lake Bluff, Highland Park, Deerfield, Lincolnshire, and surrounding communities.

The reason is simple:

The North Shore contains many of the habitat characteristics ticks prefer.

1. Ravines

The North Shore's ravine systems create cool, humid, protected environments that support tick survival.

2. Mature Tree Canopy

Large trees create shaded environments that retain moisture and reduce direct sunlight.

3. Deer Activity

Deer play a role in transporting ticks throughout an area and routinely move through residential landscapes.

4. Landscape Complexity

Many North Shore homes feature:

Shrub borders
Groundcover
Natural areas
Wooded boundaries

These environments support tick activity.

5. Tick Populations in Northern Illinois

Research has identified black-legged (deer) ticks as being common within northern Illinois and noted that tick populations and surveillance efforts continue to receive significant attention across the state.

What Homeowners Can Do

The most successful approach combines: