Sangamon County, Illinois
Sangamon County is a county in Illinois with an estimated population of 193,491 in 2023. 22 cities, towns and Census places in it are indexed here.
Largest places in Sangamon County
Springfield 112,544Chatham 14,525Sherman 4,599Auburn 4,444Rochester 3,899Riverton 3,475Pawnee 2,696Jerome 1,644Southern View 1,552Williamsville 1,430Leland Grove 1,413Grandview 1,374New Berlin 1,352Divernon 1,114Illiopolis 831Pleasant Plains 804Loami 797Spaulding 784Mechanicsburg 658Thayer 615Dawson 507Buffalo 435
About Sangamon County
Sangamon 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.