Pest Index Up 9% YOY in January

PALM BEACH GARDENS, Fla. — The William Blair/PCO Bookkeepers & M&A Specialists total U.S. Pest Index increased 9% year-over-year in January 2026, below the long-term average index growth rate of 10%.

“The slightly below-average result in January is likely due to disruptive weather patterns, including several major storms across the Eastern and Southern regions of the United States,”  William Blair Equity Researcher Tim Mulrooney said. “The residential, commercial and termite indices decelerated in January.”

Dan Gordon, managing member of PCO Bookkeepers & M&A Specialists, adds, “Even in a weather-impacted month, the industry continued to grow well above the broader pest control market’s long-term 5 to 6 percent compound annual rate. Overall, the data suggest the fundamentals remain strong, and as weather normalizes, we would expect growth trends to revert closer to historical averages.”

The month’s results by segment include:

• The Residential Pest Index increased 13% year-over-year.
• The Commercial Pest Index increased 6% year-over-year.
• The Termite Index increased 6% year-over-year.
• The Bed Bug Index decreased 11% year-over-year.
• The Mosquito Index increased 15% year-over-year.