Apple-seed-sized bed bugs can hide in luggage, purses, and backpacks—in some cities more than others.

Pest control company Orkin has put out its annual list of cities with the most prevalent problems with bed bugs, and not a whole lot has changed. The same city has been at the top of the list for three years in a row and, for the most part, anyone in a major U.S. city needs to check their hotel beds carefully.

“Bed bugs are the number one urban pest in many cities today,” said Chelle Hartzer, an Orkin entomologist.

The list is based on treatment data from the metro areas where Orkin performed the most bed bug treatments from December 1, 2017 – November 30, 2018.

These were the cities, in ascending order, that were at the top of the list for most Orkin bed bug treatments:

10. Philadelphia

To combat the bed bug epidemic, the city created Philadelphia Against Bed Bugs and the Bed Bug Task Force to bring awareness and resources to those affected by the growing problem.