Montgomery County’s mission is to improve the health, safety and welfare of our citizens, the strength of our economy and the quality of our environment.

Montgomery County's dedicated employees work to serve the public based on these Operating Principles:  Teamwork, Integrity, Commitment, Excellence, Innovation and Mutual Respect.

Please take a moment to browse through the following links to learn more about Montgomery County, its elected officials, the justice system, a wide array of departments and agencies, and other local, state and federal government entities.

• Auditor
• Board of County Commissioners
• Clerk of Courts
• Coroner 
• Engineer

• Judges
• Prosecutor
• Recorder
• Sheriff
• Treasurer

• Clerk of Courts
• Public Defender

• Common Pleas Court
  • General Division
  • Domestic Relations Division
  • Juvenile Court
  • Probate Court

• County Administrator
• Administrative Services
  • Animal Resource Center
  • Communications
  • Diversity Action Resource Team  (D.A.R.T.)
  • Emergency Management
  • Facilities Management (formerly Public Works)
    • Courthouse Square 
    • Parks & Grounds
  • Human Resources
  • Learning & Performance
  • Purchasing/Central Services
  • Risk Management
• Clerk of Commission
• Community & Economic Development
  • Arts & Cultural District
  • Community Development
  • CountyCorp
  • Building Regulations
  • Economic Development
    • ED/GE Program
  • Planning Commission

• Environmental Services
  • Water Services 
  • Solid Waste
• Family and Children First Council
  • Ex-Offender Reentry
  • Foreclosure Prevention
• Human Services Education
• Job & Family Services
  • Children Services
  • Child Support Enforcement Agency
  • Food Assistance
  • Job Center
  • Medicaid
  • Senior Services Network
  • Temporary Assistance to Needy Families (TANF)
• Office of Management and Budget
• Stillwater Center

• ADAMHS (Alcohol Drug Addiction Mental Health Services)
• Agriculture Extension Services
• Board of Education
• Board of Elections

• Law Library
• DDS (Board of Developmental Disabilities Services)
• Public Health – Dayton & Montgomery County

• CountyCorp
• Dayton Area Chamber of Commerce
• Dayton Metropolitan Housing
• Dayton Metro Library
• Dayton/Montgomery County Convention & Visitors Bureau
• Downtown Dayton Partnership
• Emergency Food Bank
• MonDay Community Correctional Institution
• Miami Valley Fair Housing
• Montgomery County Fairgrounds
• Five Rivers Metro Park

• Historical Society

• Miami Conservancy District
• Miami Valley Regional Crime Lab
• Miami Valley Regional Planning Commission
• Microfilm/Record Center
• Ombudsman
• OSU Extension Office
• Greater Dayton RTA
• Sinclair Community College
• Veteran Services
• Soil and Water Conservation

• Brookville
• Butler Township
• Centerville
• Clay Township
• Clayton
• Dayton
• Englewood
• Village of Farmersville
• Germantown
• German Township
• Harrison Township
• Huber Heights
• Jefferson Township

• Kettering
• Miamisburg
• Miami Township
• Moraine
• New Lebanon
• Oakwood
• Riverside
• Trotwood
• Union
• Vandalia  
• Washington Township
• West Carrollton

• Governor
• Lt. Governor
• Auditor 
• Attorney General
• Secretary of State

• Treasurer of the State
• Ohio Senate
• Ohio House of Representatives
• Ohio Supreme Court
• Ohio Second District Court of Appeals
   

Federal Elected Officials:

• President
• Vice President

• U.S. Senate
• U.S. House of Representatives