Hamilton County Population 2018

Hamilton County's estimated population is 813,822 with a growth rate of 0.46% in the past year according to the most recent United States census data. Hamilton County is the 3rd largest county in Ohio.

Year Population Growth Growth Rate
2017813,8223,7350.46%
2016810,0871,6820.21%
2015808,4051,6150.20%
2014806,7902,3810.30%
2013804,4092,0910.26%
2012802,3181,7010.21%
2011800,617-1,662-0.21%
2010802,279-63,949-7.38%
1990866,228-6,996-0.80%
1980873,224-50,794-5.50%
1970924,01859,8976.93%
1960864,121140,16919.36%
1950723,952101,96516.39%
1940621,98732,6315.54%
1930589,35695,67819.38%
1920493,67832,9467.15%
1910460,73251,25312.52%
1900409,47934,9069.32%
1890374,57361,19919.53%
1880313,37453,00420.36%
1870260,37043,96020.31%
1860216,41059,56637.98%
1850156,84476,69995.70%
184080,14527,82853.19%
183052,31720,55364.71%
182031,76416,506108.18%
181015,2585663.85%
180014,6920.00%

Hamilton County Population Growth

Population Data via

Hamilton County Race Data

Race Population Percentage
White553,39668.00%
Black or African American212,97026.17%
Asian19,7452.43%
Two or More Races18,8322.31%
American Indian and Alaska Native1,9030.23%
Native Hawaiian and Other Pacific Islander9020.11%

Hamilton County Population Pyramid

0k5k10k15k20k25k30k35k Male Population0k5k10k15k20k25k30k35k 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