Butler County Population 2018

Butler County's estimated population is 380,604 with a growth rate of 0.71% in the past year according to the most recent United States census data. Butler County is the 7th largest county in Ohio.

Year Population Growth Growth Rate
2017380,6042,6710.71%
2016377,9332,3640.63%
2015375,5692,1810.58%
2014373,3882,3710.64%
2013371,0175850.16%
2012370,4323830.10%
2011370,0499610.26%
2010369,08877,60926.63%
1990291,47932,69212.63%
1980258,78732,58014.40%
1970226,20727,13113.63%
1960199,07651,87335.24%
1950147,20326,95422.42%
1940120,2496,1655.40%
1930114,08427,05931.09%
192087,02516,75423.84%
191070,27113,40123.56%
190056,8708,27317.02%
189048,5976,01814.13%
188042,5792,6676.68%
187039,9124,07211.36%
186035,8405,05116.41%
185030,7892,6169.29%
184028,1731,0313.80%
183027,1425,39624.81%
182021,74610,59695.03%
181011,1500.00%

Butler County Population Growth

Population Data via

Butler County Race Data

Race Population Percentage
White323,25584.93%
Black or African American31,2698.22%
Asian11,1202.92%
Two or More Races8,3272.19%
American Indian and Alaska Native1,0490.28%
Native Hawaiian and Other Pacific Islander4390.12%

Butler County Population Pyramid

0k5k10k15k Male Population0k5k10k15k 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