County Departments We’ve made general interest information about county services, organization, history and attractions easier to find. Use the links below to explore Hamilton County categories quickly. W.H.Taft Center   County Agencies: County Commissioners The William Howard Taft Center at 230 East 9th Street houses the Hamilton County agencies of Family Law, Public Defender, Private Complaints and many other County departments.     County Administrator   County Auditor     Alcohol and Drug Addiction Services     Administrative Services(DAS)     Board of Elections     Building Inspections     County Communications Center     Community Development     Coroner's Office     Economic Development     Emergency Management Agency     Engineer's Office     Environmental Services     Facilities     Family & Children First     General Health District (Board of Health)     Homeland Security (Regional)     Job & Family Services     Law Library     Mental Health Board     Mental Retardation & Developmental Disabilities Board (MR/DD)     Metropolitan Sewer District     Park District     Personnel     Planning & Zoning     Prosecutor's Office     Public Library     Public Works     Public Defender's Office     Purchasing     Recorder's Office     Sheriff's Office     SPCA     Soil and Water     Treasurer