Montgomery County Population 2018

Montgomery County's estimated population is 531,542 with a growth rate of 0.03% in the past year according to the most recent United States census data. Montgomery County is the 5th largest county in Ohio.

Year Population Growth Growth Rate
2017531,5421470.03%
2016531,3951020.02%
2015531,293-699-0.13%
2014531,992-1,721-0.32%
2013533,713-455-0.09%
2012534,168-247-0.05%
2011534,415-1,149-0.21%
2010535,564-38,245-6.67%
1990573,8092,1120.37%
1980571,697-34,451-5.68%
1970606,14879,06815.00%
1960527,080128,63932.29%
1950398,441102,96134.85%
1940295,48021,9998.04%
1930273,48163,94930.52%
1920209,53245,76927.95%
1910163,76333,61725.83%
1900130,14629,29429.05%
1890100,85222,30228.39%
188078,55014,54422.72%
187064,00611,77622.55%
186052,23014,01236.66%
185038,2186,28019.66%
184031,9387,57631.10%
183024,3628,36352.27%
182015,9998,277107.19%
18107,7220.00%

Montgomery County Population Growth

Population Data via

Montgomery County Race Data

Race Population Percentage
White391,95973.74%
Black or African American112,90121.24%
Two or More Races13,8622.61%
Asian11,1802.10%
American Indian and Alaska Native1,3660.26%
Native Hawaiian and Other Pacific Islander2990.06%

Montgomery County Population Pyramid

0k5k10k15k20k Male Population0k5k10k15k20k Female Population8580757065605550454035302520151050
Data Sources
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990