Local spider information

Spider control in Illinois

Learn what to look for around your property, explore your city, and ask about an inspection or a quote.

Spiders in Illinois: what to know

Around Illinois

Conditions vary across the state. Choose your city below, then describe what’s happening around your home or business.

What to note

Where you see spiders, how long it has been going on, and anything you’ve already tried are the most useful details to mention.

A useful next step

Ask about an inspection, what treatment would involve, and whether follow-up visits are included. You don’t need to identify the problem yourself before getting in touch.

Local research

Spiders in Illinois: what the public record shows

Before you compare quotes, it helps to know which spiders actually live in Illinois, when they are busiest, and what the state figures look like. Everything below links to the agency or university page it came from.

Spider species recorded in Illinois

Brown recluse (Loxosceles reclusa) — Native range 'Nebraska south to Texas and eastward to southernmost Ohio and north-central Georgia' (UC Riverside). 'Found throughout the south central and Midwestern United Stat…

When spiders are busiest in Illinois

Temperate/continental: fall indoor wandering; recluses in the southern and central parts of the state per range boundaries.

Illinois lies inside the brown recluse range 'Nebraska south to Texas and eastward to southernmost Ohio' (UC Riverside). IDPH: 'To obtain a LICENSE, a business must first employ at least one person who is a CERTIFIED TECHNICIAN.'

Rules that apply in Illinois

Illinois Department of Public Health Structural Pest Control

For context, nationally

Throughout North America, but are most common in the southern and western United States — Black widow distribution. CDC/NIOSH
In the midwestern and southern United States — Brown recluse distribution. CDC/NIOSH

Sources: CDC/NIOSH; Myth of the Brown Recluse: Fact, Fear, and Loathing. Figures are quoted as the source prints them. How we check our sources

Explore Illinois cities

Arlington Heights

Humid Continental · suburban setting

Spider control in Illinois

Spiders in Illinois: what to know

Around Illinois

What to note

A useful next step

Spiders in Illinois: what the public record shows

Spider species recorded in Illinois

When spiders are busiest in Illinois

Rules that apply in Illinois

For context, nationally

Explore Illinois cities

Arlington Heights

Aurora

Berwyn

Bloomington

Bolingbrook

Champaign

Chicago

Cicero

Decatur

Des Plaines

Elgin

Evanston

Joliet

Naperville

Oak Lawn

Palatine

Peoria

Rockford

Schaumburg

Skokie

Springfield

Waukegan

Downers Grove

Ask about spider control in Illinois