Local spider information

Spider control in Pennsylvania

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

Spiders in Pennsylvania: what to know

Around Pennsylvania

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 Pennsylvania: what the public record shows

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

No deaths have been recorded due to black widow bites since 1983

Black widow deaths

Bites are serious but survivable; the main concern is prompt medical care.

Penn State Extension

Spider species recorded in Pennsylvania

Southern black widow (Latrodectus mactans) — 'Found in the southeastern region and has been found as far north as Ohio and as far west as Texas' (UF/IFAS); confirmed in Pennsylvania (Penn State) and one of two dangerous sp…
Northern black widow (Latrodectus variolus) — Penn State: 'It is probable that the northern black widow, L. variolus, is also present' in Pennsylvania; UF/IFAS lists it among Florida's four widow species. Hourglass often sp…
Joro spider (Trichonephila clavata) — 'Established in Georgia, North Carolina, South Carolina, Tennessee, Alabama, and spreading to adjacent regions. There are also isolated populations found in Maryland, Virginia,…

When spiders are busiest in Pennsylvania

'The majority of widow bites occur' in 'the summer months' (Penn State).

'The southern black widow, L. mactans, is found in Pennsylvania. It is probable that the northern black widow, L. variolus, is also present' (Penn State). Isolated joro populations reported in Pennsylvania (UGA). No brown recluse breeding range in PA per UC Riverside boundaries.

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: Southern Black Widow Spider; CDC/NIOSH; EENY 560: Southern Black Widow, Latrodectus mactans; Joro Spider: Trichonephila clavata (Circular 1273). Figures are quoted as the source prints them. How we check our sources

Explore Pennsylvania cities

Allentown

Humid Continental · urban setting

Spider control in Pennsylvania

Spiders in Pennsylvania: what to know

Around Pennsylvania

What to note

A useful next step

Spiders in Pennsylvania: what the public record shows

Spider species recorded in Pennsylvania

When spiders are busiest in Pennsylvania

For context, nationally

Explore Pennsylvania cities

Allentown

Altoona

Bethlehem

Chambersburg

Chester

Easton

Erie

Harrisburg

Hazleton

Lancaster

Lebanon

New Castle

Philadelphia

Pittsburgh

Pottstown

Reading

Scranton

State College

Wilkes-Barre

Williamsport

York

Monroeville

Ask about spider control in Pennsylvania