Form an LLC in Illinois Counties

Welcome to our comprehensive guide to forming an LLC in Illinois's counties! The Prairie State's 102 counties represent diverse business environments, from Chicago's global marketplace to agricultural powerhouses downstate. Each county offers unique advantages for businesses across various sectors including finance, manufacturing, agriculture, and technology.

Business Quick Facts About Illinois

• Home to 37 Fortune 500 company headquarters
• Extensive transportation infrastructure including major rail, air, and shipping hubs
• Leading center for financial trading and technology innovation
• Diverse economy spanning manufacturing, agriculture, and professional services
• Robust R&D tax credits and business development incentives

Below you'll find links to detailed information about forming an LLC in each county in Illinois, including economic development resources, tax incentives, workforce data, and industry-specific opportunities.

County Directory

• Adams County LLC Guide
• Alexander County LLC Guide
• Bond County LLC Guide
• Boone County LLC Guide
• Brown County LLC Guide
• Bureau County LLC Guide
• Calhoun County LLC Guide
• Carroll County LLC Guide
• Cass County LLC Guide
• Champaign County LLC Guide
• Christian County LLC Guide
• Clark County LLC Guide
• Clay County LLC Guide
• Clinton County LLC Guide
• Coles County LLC Guide
• Cook County LLC Guide
• Crawford County LLC Guide
• Cumberland County LLC Guide
• DeKalb County LLC Guide
• DeWitt County LLC Guide
• Douglas County LLC Guide
• DuPage County LLC Guide
• Edgar County LLC Guide
• Edwards County LLC Guide
• Effingham County LLC Guide
• Fayette County LLC Guide
• Ford County LLC Guide
• Franklin County LLC Guide
• Fulton County LLC Guide
• Gallatin County LLC Guide
• Greene County LLC Guide
• Grundy County LLC Guide
• Hamilton County LLC Guide
• Hancock County LLC Guide
• Hardin County LLC Guide
• Henderson County LLC Guide
• Henry County LLC Guide
• Iroquois County LLC Guide
• Jackson County LLC Guide
• Jasper County LLC Guide
• Jefferson County LLC Guide
• Jersey County LLC Guide
• Jo Daviess County LLC Guide
• Johnson County LLC Guide
• Kane County LLC Guide
• Kankakee County LLC Guide
• Kendall County LLC Guide
• Knox County LLC Guide
• Lake County LLC Guide
• LaSalle County LLC Guide
• Lawrence County LLC Guide
• Lee County LLC Guide
• Livingston County LLC Guide
• Logan County LLC Guide
• Macon County LLC Guide
• Macoupin County LLC Guide
• Madison County LLC Guide
• Marion County LLC Guide
• Marshall County LLC Guide
• Mason County LLC Guide
• Massac County LLC Guide
• McDonough County LLC Guide
• McHenry County LLC Guide
• McLean County LLC Guide
• Menard County LLC Guide
• Mercer County LLC Guide
• Monroe County LLC Guide
• Montgomery County LLC Guide
• Morgan County LLC Guide
• Moultrie County LLC Guide
• Ogle County LLC Guide
• Peoria County LLC Guide
• Perry County LLC Guide
• Piatt County LLC Guide
• Pike County LLC Guide
• Pope County LLC Guide
• Pulaski County LLC Guide
• Putnam County LLC Guide
• Randolph County LLC Guide
• Richland County LLC Guide
• Rock Island County LLC Guide
• Saline County LLC Guide
• Sangamon County LLC Guide
• Schuyler County LLC Guide
• Scott County LLC Guide
• Shelby County LLC Guide
• St. Clair County LLC Guide
• Stark County LLC Guide
• Stephenson County LLC Guide
• Tazewell County LLC Guide
• Union County LLC Guide
• Vermilion County LLC Guide
• Wabash County LLC Guide
• Warren County LLC Guide
• Washington County LLC Guide
• Wayne County LLC Guide
• White County LLC Guide
• Whiteside County LLC Guide
• Will County LLC Guide
• Williamson County LLC Guide
• Winnebago County LLC Guide
• Woodford County LLC Guide