Hamilton County, Ohio Business Directory & Community Resources
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View the 2025 U.S. Census demographic profile for Hamilton County
Hamilton County — County Seat: Cincinnati
2026 Population Estimate: 838,977 | Official Website: https://www.hamiltoncountyohio.gov/
Hamilton County is Ohio's third most populous county, anchored by the great city of Cincinnati — one of the defining cities of American history, culture, and commerce. Cincinnati sits at the confluence of the Ohio and Little Miami rivers and was once the pork-packing capital of America (earning the nickname Porkopolis), a hub of abolitionism (the fictional Eliza crossing the ice in Uncle Tom's Cabin was set here), and one of the first great American metropolises. Today the county is a major corporate headquarters hub, home to Procter & Gamble, Fifth Third Bank, Kroger, Macy's, American Financial Group, and Cincinnati Financial. Cultural treasures include the Cincinnati Art Museum, Cincinnati Symphony Orchestra, Cincinnati Zoo & Botanical Garden (one of the nation's oldest and best), and Great American Ball Park (home of the Cincinnati Reds — MLB's oldest professional franchise). The Cincinnati Bengals (NFL) also play here.
▸ Key Industries & Major Employers
Healthcare, financial services, advanced manufacturing, professional services, and higher education.
Cincinnati (county seat) is Ohio's third-largest city. Top employers include Cincinnati Children's Hospital Medical Center, the University of Cincinnati, Procter & Gamble (global headquarters), Kroger (global headquarters), Fifth Third Bank, Western & Southern Financial Group, and American Financial Group. The county hosts 9 Fortune 500 company headquarters.
▸ Notable Economic Development Initiatives
REDI Cincinnati generated $687.9M in direct capital investment from 44 economic development projects in 2023. Life sciences (33%), food/beverage (22%), and technology (19%) led investment. Hamilton County launched the Economic Impact Program (EIP) in 2024, distributing $3.47M to 13 communities in the first round. The Banks riverfront development between the Bengals and Reds stadiums continues to attract mixed-use investment with $717M+ in 3CDC's pipeline. The Port of Greater Cincinnati manages the Hamilton County Land Reutilization Corporation (Landbank), having returned 1,200+ properties to productive use since 2012.
▸ Infrastructure & Investment Highlights
I-75, I-71, I-275, and I-471 form the highway network. Cincinnati/Northern Kentucky International Airport (CVG) is a growing cargo hub and offers expanding international passenger service. The Ohio River supports industrial barge traffic. The Central Parkway streetcar and regional bus network (SORTA/Metro) serve urban mobility. The 2025 Green Workforce Landscape Analysis mapped capital investment needs across eight clean economy sectors.