Adams County, Illinois
Adams County is a county in Illinois with an estimated population of 64,441 in 2023. 10 cities, towns and Census places in it are indexed here.
Largest places in Adams County
Quincy 38,803Camp Point 1,114Payson 1,000Mendon 851Golden 630Clayton 621Ursa 592Liberty 527Loraine 294Plainville 265
About Adams County
Adams 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.