How many animal hoarding cases a year?

The number of animal hoarding cases reported in the United States varies from year to year. According to the Humane Society of the United States (HSUS), there were an estimated 2,500 animal hoarding cases reported in 2010, and approximately 3,000 cases reported in 2014. The HSUS estimates that there are an estimated 250,000 animal hoarders in the United States. The estimated number of animals involved in hoarding situations is over 2 million.