Miami County Population 2018

Miami County's estimated population is 105,122 with a growth rate of 0.71% in the past year according to the most recent United States census data. Miami County is the 25th largest county in Ohio.

Year Population Growth Growth Rate
2017105,1227400.71%
2016104,3824290.41%
2015103,9531770.17%
2014103,7766020.58%
2013103,1742660.26%
2012102,9081940.19%
2011102,7142310.23%
2010102,4839,3019.98%
199093,1822,8013.10%
198090,3816,0397.16%
197084,34211,44115.69%
196072,90111,59218.91%
195061,3098,67716.49%
194052,6321,3312.59%
193051,3012,8735.93%
192048,4283,3817.51%
191045,0471,9424.51%
190043,1053,3518.43%
189039,7543,5969.95%
188036,1583,41810.44%
187032,7402,7819.28%
186029,9594,96019.84%
185024,9995,31126.98%
184019,6886,88153.73%
183012,8073,95644.70%
18208,8514,910124.59%
18103,9410.00%

Miami County Population Growth

Population Data via

Miami County Race Data

Race Population Percentage
White98,11993.34%
Black or African American2,3722.26%
Two or More Races1,9341.84%
Asian1,4911.42%
American Indian and Alaska Native2490.24%
Native Hawaiian and Other Pacific Islander320.03%

Miami County Population Pyramid

0k1k2k3k4k Male Population0k1k2k3k4k 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