Chicago holds title of rattiest city in America for 10th year in a row by Orkin pest control

Chicago Ranks #1 in Orkin’s "Rattiest Cities" List for 10th Consecutive Year — Los Angeles Not Far Behind

A recent report by Orkin has ranked Chicago as the #1 "rattiest city" in the U.S. for the tenth year in a row, based on the number of new rodent treatments carried out between September 1, 2022, and August 31, 2023. These include services for both residential and commercial properties.

Interestingly, Los Angeles continues to hold its place as the second rattiest city in the country — a reminder of how urban rodent activity remains a growing concern across large U.S. cities.

Why Are Cities Like Chicago and Los Angeles Struggling with Rats?

There are several reasons why major cities consistently make the top of this list:

• High population density – more people, more food waste.

• Aging infrastructure – older sewer systems and buildings give rodents easy access.

• Climate conditions – mild winters (like in Los Angeles) allow rodents to thrive year-round.

• Improper trash storage – uncovered bins and unsealed bags attract rats quickly.

These factors make it easy for rats to find shelter, food, and nesting areas — especially in tight urban environments.

Los Angeles Residents Should Take This as a Warning Sign

While Chicago continues to top the list, Los Angeles staying at #2 is still alarming. Whether in residential neighborhoods or commercial districts, rodents can cause significant health and safety issues.

Common signs of a rodent problem include:

• Droppings in kitchens, garages, or basements

• Chewed wires or food packaging

• Scratching sounds in walls or ceilings

• Grease marks along baseboards

Ignoring these signs can lead to serious property damage and even spread of disease.

Simple Steps to Prevent Rodent Problems at Home or Work

If you live or work in Los Angeles, here are some useful tips to help prevent rodent infestations:

1. Seal all entry points – even small cracks in walls or foundations can let rodents in.

2. Store food in airtight containers – especially in kitchens and pantries.

3. Take out trash regularly – and always use tightly sealed bins.

4. Clean up clutter – rodents love nesting in storage areas with cardboard and fabric.

5. Fix leaky pipes – standing water can attract pests and help them survive.

Why This List Matters

Orkin’s “Rattiest Cities” list isn’t just a ranking — it’s a reflection of where rodents are most active and how urban areas manage waste and pest prevention. With Los Angeles so high on the list year after year, it’s clear that rodent prevention needs to remain a top priority for homeowners, renters, and property managers alike.

Conclusion

While Chicago continues its run as America’s most rodent-infested city, Los Angeles remains close behind. Taking preventative action now can reduce the chances of a rodent infestation in your home or business.