Effingham County, Illinois
Effingham County is a county in Illinois with an estimated population of 34,331 in 2023. 8 cities, towns and Census places in it are indexed here.
Largest places in Effingham County
Effingham 12,258Altamont 2,188Teutopolis 1,663Dieterich 870Watson 659Beecher City 421Edgewood 391Mason 319
About Effingham County
Effingham 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.