Marion County Population 2018

Marion County's estimated population is 28,634 with a growth rate of -0.12% in the past year according to the most recent United States census data. Marion County is the 40th largest county in Missouri.

Year Population Growth Growth Rate
201728,634-33-0.12%
201628,667-21-0.07%
201528,688-73-0.25%
201428,761-4-0.01%
201328,765250.09%
201228,740-39-0.14%
201128,779-6-0.02%
201028,7851,1033.98%
199027,682-956-3.34%
198028,6385171.84%
197028,121-1,401-4.75%
196029,522-243-0.82%
195029,765-1,811-5.74%
194031,576-1,917-5.72%
193033,4933,26710.81%
192030,226-346-1.13%
191030,5724,24116.11%
190026,331980.37%
189026,2331,3965.62%
188024,8371,0574.44%
187023,7804,94226.23%
186018,8386,60854.03%
185012,2302,60727.09%
18409,6234,78698.95%
18304,8370.00%

Marion County Population Growth

Population Data via

Marion County Race Data

Race Population Percentage
White26,43992.33%
Black or African American1,4595.10%
Two or More Races6542.28%
Asian2220.78%
American Indian and Alaska Native640.22%
Native Hawaiian and Other Pacific Islander240.08%

Marion County Population Pyramid

0k0k0k1k1k1k Male Population0k0k0k1k1k1k 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