Click here to view a map of Hamilton County
Click here for the Hamilton County Census Profile (2024)
Hamilton County is located in the southwestern corner of Ohio, with a population of 830,639 as of the 2020 census, making it the third-most populous county in the state. The county seat and largest city is Cincinnati, and it is part of the Cincinnati-Middletown, OH-KY-IN Metropolitan Statistical Area. Hamilton County is known for its strong Midwestern values, such as being tough, hardworking, and polite. The county is named for the first Secretary of the Treasury, Alexander Hamilton and county provides many services to residents and businesses.
8044 Montgomery Rd Suite 700 Cincinnati, OH 45236
8075 Reading Rd Suite 300-G Cincinnati, OH 45237
11551 Newgate Ln Cincinnati, OH 45240
10210 Winstead Ln Cincinnati, OH 45231
*** Cincinnati, OH 45202
2145 Florence Ave Cincinnati, OH 45206