Population 2010

535,153

Population 2020

537,309

Registered Voters

269,164

Republicans

129,034

Democrat

135,064

Minor Party

5,066

No Party

Municipalities

CitiesPopulation
Brookville5,884
Carlisle 5,501
Centerville24,240
Clayton13,310
Dayton137,644
Englewood13,645
Germantown5,547
Huber Heights43,439 
Kettering57,862
Miamisburg20,181
 

Superintendent of Schools

Treasurer / Tax Collector

County Commission

CommissionerJudy Dodge
CommissionerDebbie Lieberman
CommissionerCarolyn Rice 

School Board

Board Member Daryl Michael
Board Member Gary Roberts
Board Member Greg Shell
Board Member Terry Smith
Board Member Joy Weaver

Brief Political History

In the six presidential elections until 2016, Montgomery County has voted for the Democratic candidate, but not by large margins. However, in 2016, Republican Donald Trump narrowly defeated Democrat Hillary Clinton. Montgomery County was also the most populated county in Ohio to go for Trump in 2016, and it was the only county in Ohio to flip for Joe Biden in 2020.

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