The Bureau of the Census seeks public input on their proposals to change the criteria for defining urban areas based on the results of the 2020 Decennial Census. There are several significant changes for consideration, including defining urban areas based on housing unit density instead of population density and increasing the minimum population required to form the core of an urban area from 2,500, which was established over a century ago, to 10,000. The definition of ‘rural’, areas that are not urban, is not proposed to change. Read more here.