Orkin Names Three Pennsylvania Cities Among Rattiest

Harrisburg, Philadelphia, and Pittsburgh appear on a new national list of cities with the most residential rodent activity.

Updated on Oct. 19, 2026 in Wildlife

Bold vector editorial illustration of a city brick wall and sidewalk, representing urban pest control rankings. — Orkin’s annual report on residential rodent activity ranked Philadelphia, Pittsburgh, and Harrisburg among the 50 most affected cities nationwide. AI Illustration. Upload story photo >

Live Poll

Do you feel rodent issues are becoming a bigger problem in your local community?

Pest control company Orkin has released its annual ranking of the 50 rattiest cities in the United States. Harrisburg, Philadelphia, and Pittsburgh were all included in this year’s report.

Why it matters

The rankings highlight urban areas across the country experiencing the highest demand for residential rodent treatments. These findings draw attention to specific regions that are struggling with rising rodent populations in residential neighborhoods.

The rankings are based on new residential rodent treatments performed by Orkin. The data reflects activity measured over a one-year period spanning from Aug. 9, 2025, to Aug. 9, 2026.

The players

Orkin

Orkin is a nationwide pest control company that provides residential and commercial extermination services.

The details

Orkin compiled the list by analyzing the volume of new rodent service requests for residential properties throughout the country. Philadelphia secured the eighth spot on the list, while Pittsburgh and Harrisburg ranked 20th and 50th, respectively.

From Aug. 9, 2025, to Aug. 9, 2026, Orkin measured new residential rodent treatment activity.

Culture Shift

This report tracks the year-over-year shifts in regional rodent activity as recorded in Orkin's annual Rattiest Cities report. The data reflects how human-rodent interactions fluctuate across major metropolitan areas in response to changing urban conditions.

Residents in the ranked cities may consider proactive measures to secure their homes against rodent entry as pest activity remains a focus. Property owners can evaluate their own pest control needs based on the reported service demand in their specific region.

The takeaway

Maintaining a clean exterior and sealing small entry points can help prevent rodent infestations in urban settings. Homeowners in these ranked cities may want to prioritize regular property inspections to identify and resolve vulnerabilities early.