When Will Cicadas Emerge In 2025 In Chicago. There are two groups of periodical cicadas โ those that emerge every 13 years and those that emerge every 17 years. Where will cicadas be in 2025?
One article from the university of illinois extension stated that brood xix, set to emerge in late may 2025, has a reputation for being the largest emergence of cicadas known anywhere, due to. Periodical cicadas only exist in two other countries โ fiji and india.