Marion County Population 2018

Marion County's estimated population is 950,082 with a growth rate of 0.64% in the past year according to the most recent United States census data. Marion County is the 1st largest county in Indiana.

Year Population Growth Growth Rate
2017950,0826,0480.64%
2016944,0343,7990.40%
2015940,2354,4900.48%
2014935,7456,0230.65%
2013929,72210,2691.12%
2012919,4538,2580.91%
2011911,1956,6910.74%
2010904,504107,34513.47%
1990797,15931,9264.17%
1980765,233-27,066-3.42%
1970792,29994,73213.58%
1960697,567145,79026.42%
1950551,77790,85119.71%
1940460,92638,2609.05%
1930422,66674,60521.43%
1920348,06184,40032.01%
1910263,66166,43433.68%
1900197,22756,07139.72%
1890141,15638,37437.34%
1880102,78230,84342.87%
187071,93932,08480.50%
186039,85515,75265.35%
185024,1038,02349.89%
184016,0808,888123.58%
18307,1920.00%

Marion County Population Growth

Population Data via

Marion County Race Data

Race Population Percentage
White614,41764.67%
Black or African American264,83427.87%
Asian27,5492.90%
Two or More Races26,0262.74%
American Indian and Alaska Native4,5670.48%
Native Hawaiian and Other Pacific Islander6650.07%

Marion County Population Pyramid

0k10k20k30k40k Male Population0k10k20k30k40k 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