There are 4,000 types of cockroaches on Earth, with 40 of them being found right here in the United States.
Cockroaches are filthy pests known for spreading diseases and even provoking asthma or allergies. Knowing the size of a cockroach can help you identify what species it is. Do you know how big a cockroach can get? See below for the most common species of household cockroaches and their sizes.