What is the average number of sinkholes per year?

The average number of sinkholes varies widely depending on the region and geological conditions, but in the United States, it's estimated that there are several thousand sinkholes reported each year. Florida, in particular, experiences a high frequency due to its limestone bedrock. Globally, the incidence can differ greatly, with some areas experiencing few sinkholes while others may see numerous events annually. Overall, while exact figures are hard to pinpoint, it's clear that sinkholes are a common geological phenomenon in certain regions.