Hancock County, Illinois
Hancock County is a county in Illinois with an estimated population of 17,186 in 2023. 9 cities, towns and Census places in it are indexed here.
Largest places in Hancock County
Hamilton 2,689Carthage 2,441Warsaw 1,473La Harpe 1,152Nauvoo 923Dallas City 788Augusta 544Bowen 453Plymouth 426
About Hancock County
Hancock 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.