Piatt County, Illinois
Piatt County is a county in Illinois with an estimated population of 16,714 in 2023. 8 cities, towns and Census places in it are indexed here.
Largest places in Piatt County
Monticello 6,018Bement 1,468Cerro Gordo 1,306Atwood 1,099Mansfield 928Hammond 501De Land 445Cisco 253
About Piatt County
Piatt County is one of the counties of Illinois. County governments in Illinois handle local services such as courts, property records and elections; cities and towns inside the county run their own municipal services. Population figures come from the Census Bureau's Vintage 2023 estimates, which are updated annually.