Overview

• HouseFresh's study analyzed 12.3 million 311 sanitation-related complaints to rank U.S. cities by cleanliness.
• Baltimore leads as the dirtiest city with nearly 47,000 complaints per 100,000 residents, followed by Sacramento and Los Angeles.
• New York City, previously ranked the world's second dirtiest in 2022, now places 17th in the U.S., with Brooklyn registering the highest complaints in the city.
• Sacramento officials note that 311 hotlines are used for routine service requests, potentially inflating complaint figures.
• Houston-area ZIP code 77546 is identified as the cleanest in the U.S., with only 19 complaints recorded.